CN207331752U - M shape waterstop protective devices - Google Patents

Abstract

The utility model relates to the technical field of immersed tube tunnels, in particular to an M-shaped waterstop protection device, which includes a first connection part for installation on the final joint body structure and a second connection part for installation on the pushing girder , between the first connecting part and the second connecting part is a telescopic part, the length of the telescopic part is variable, the first connecting part, the second connecting part and the telescopic part are of an integrated structure, through the connecting part Fix the M-shaped waterstop protection device on the body structure of the final joint and the push beam respectively, so that the M-shaped waterstop protection device is arranged outside the M-shaped waterstop, thereby forming protection for the M-shaped waterstop. Effectively prevent it from being scratched and damaged, thereby preventing seawater from entering the gap between the final joint and the pushing girder through the M-shaped waterstop, affecting subsequent drainage and construction, and ensuring construction progress and construction safety.

Description

M-shaped waterstop protection device

technical field

The utility model relates to the technical field of immersed tube tunnels, in particular to an M-shaped waterstop protection device.

Background technique

Immersed tube method tunnel construction is to float and transport the prefabricated tunnel caissons in semi-submerged barge or dry dock to the predetermined position for sinking and docking. In order to make the last pipe section sink smoothly, it is necessary to leave a space longer than this pipe section. , the butted pipe section placed in the remaining distance space is regarded as the final joint. The final joint of the immersed tube tunnel is the key to the construction of the immersed tube tunnel, especially in the construction of the ultra-long immersed tube tunnel in the open sea, the construction site operation conditions are difficult, and it faces complex marine environmental conditions and meteorological conditions such as waves and currents.

The structure of the final joint of the immersed tube tunnel is shown in Figure 1, Figure 2 and Figure 3. The final joint 1 includes a pipe joint 101 and a pipe joint 2 102. The two pipe joints are connected by a shear key 2, and the pipe joint 101 An annular cavity is provided on the outer periphery of the side where the pipe joint 2 102 is connected with the adjacent pipe joint 18, and a jack 3 and a push beam 4 are arranged in the ring cavity, and the end of the push beam 4 is parallel to the pipe joint 1. 101 and pipe joint 2 102, the end surface of the push beam 4 is provided with a Gina waterstop 5, the Gina waterstop 5 is perpendicular to the end surface of the push beam 4, and the material of the Gina waterstop 5 at the front end of the beam is The natural rubber is fixed on the end slope of the trabecula through the pressing system, and the waterstop and the pressing system are both perpendicular to the end slope of the trabeculum. The waterstop is arranged in a circle along the inclined surface of the end of the trabecula, and the piston rod of the jack 3 is connected to the pushing trabecula 4, and the pushing trabecula 4 is respectively connected to the pipe joint 101 and the pipe joint 1 through the trabecular slider 6. On the connection surface of Section 2 102, the Gina waterstop 5 is in contact with the surface of the installed adjacent pipe section 18 under the action of the pushing beam 4, and the Gina waterstop 5 is fully compressed to realize the waterstop between the combined cavity and the outside world , to facilitate the subsequent drainage of the combined cavity, forming a dry construction environment.

The pushing girder 4 is respectively connected with the first pipe joint 101 and the second pipe joint 102, and an M-shaped waterstop 7 is provided at the end of the pushing girder and the final joint, and the M-shaped waterstop 7 is along the edge of the final joint 1. The end surface is arranged in a circle, which is used to close the cavity gap between the push beam 4 and the final joint body structure. Shapeshifting ability. The M-shaped waterstop 7 is fixedly connected to the push beam 4 and the body structure 8 of the final joint through a pressing system. The pressing system includes a pressing plate 9 connecting both sides of the M-shaped waterstop 7, a pressing bar 10, screws and spring washer.

The M-shaped waterstop is the lifeline of the joint cavity of the final joint, and it plays a vital role. Once the M-shaped waterstop leaks, it will directly affect the normal operation of the jacking system, thereby affecting the installation of the entire final joint , and the M-shaped waterstop is directly exposed, which increases the risk of scratching and damage. Therefore, how to avoid damage to the M-shaped waterstop becomes one of the most important links in the final joint installation process.

Utility model content

The purpose of the invention of the utility model is to provide an M-shaped water-stop protection device for the problem that the M-shaped water-stop is directly exposed to the outside and is prone to scratches and damages. The M-shaped water-stop protection device includes two connections The M-shaped waterstop protection device is respectively fixed on the body structure of the final joint and the push beam through the connecting part, so that the M-shaped waterstop protection device is arranged outside the M-shaped waterstop, so as to The M-shaped waterstop forms protection, effectively preventing it from being scratched and damaged, and ensuring construction progress and construction safety.

In order to achieve the above object, the technical solution adopted by the utility model is:

An M-shaped waterstop protection device, comprising a first connection part for installation on the body structure of the final joint and a second connection part for installation on the push beam, the first connection part and the second connection part Between the connecting parts is a telescopic part, the length of which is variable, and the first connecting part, the second connecting part and the telescopic part are of an integral structure.

Since one side of the M-shaped waterstop is connected to the final joint body structure, and the opposite side is connected to the push beam, when the jack arranged in the annular cavity of the final joint body pushes the push beam to slide horizontally, The M-shaped waterstop prevents the seawater from pushing the girder, so as to achieve the purpose of waterstop and protect the smooth installation and construction of the final joint.

The M-shaped waterstop is the lifeline of the joint chamber of the final joint, and it plays a vital role. Once the M-shaped waterstop leaks, it will directly affect the drainage of the joint chamber and all subsequent work, thereby affecting the entire Installation of final joints. In order to reduce the risk of damage to the M-shaped waterstop, considering the installation of the M-shaped waterstop and other factors, the M-shaped waterstop protection device of this scheme is used to protect the M-shaped waterstop.

The structure of the M-shaped waterstop protection device corresponds to the structure of the M-shaped waterstop, which includes the first connection part, the second connection part and the telescopic part arranged in the middle of the two connection parts, and the three parts are integrated structure, the first connecting part and the second connecting part are arranged oppositely, and are located on both sides of the telescopic part, the first connecting part is installed on the final joint body structure, and the second connecting part on the other side is installed on the pushing beam, so that The M-shaped waterstop protection device is located on the side of the M-shaped waterstop to protect the M-shaped waterstop.

Specifically, the M-shaped waterstop protection device is arranged on the outside of the M-shaped waterstop, that is, on the side close to the sea water. After the two connecting parts of the M-shaped waterstop protection device are installed respectively, a relatively closed isolation structure is formed on both sides. , so as to block the direct contact between the M-shaped waterstop and the external environment, and prevent the M-shaped waterstop from being scratched and damaged during the final joint sinking and installation process.

The length of the telescopic part refers to the distance between the two connecting parts. The length of the telescopic part of the M-shaped waterstop protection device is set to be variable to ensure that when the second connecting part moves with the push beam, the telescopic The upper part also expands and contracts freely, corresponding to the length of the M-shaped waterstop, forming a protection for the M-shaped waterstop.

As a preferred solution of the present invention, the M-shaped waterstop protection device is a closed ring structure arranged along the end surface of the final joint. The outer side of the annular structure is the first connecting part, and the distance between the installation part of the final joint body structure and the center of the final joint is A, which corresponds to the first connecting part of the M-shaped waterstop protection device, and the inner side of the ring is The second connecting part, the distance between the installation site of the pushing girder of the second connecting part and the center of the final joint is B, and the distance B corresponds to the inner side of the M-shaped waterstop protection device.

The outer side of the ring is installed on the final joint body structure, the inner side of the ring is installed on the push beam, the ring surface removes the installation parts on both sides, and the ring part in the middle is used as the expansion part, which can freely expand and contract with the movement of the push beam. The ring-shaped M-shaped waterstop protection device has a bar-shaped cross-section, the two ends are respectively the first connection part and the second connection part, and the middle part is the telescopic part.

As a preferred solution of the present invention, the telescopic part is made of flexible material. The flexible material is a material with relatively soft strength and toughness, which can adapt to a certain deformation and bending without cracking, such as cloth, rubber and other materials. The telescoping part is made of flexible material, and the telescoping part can freely form folds, and can be bent and stretched freely within the horizontal movement range of the pushing trabecular, matching the motion state of the pushing trabecular.

The M-shaped waterstop or M-shaped waterstop protection device involved in the utility model, its M-shaped state does not refer to a certain fixed state, but an unfixed state under the action of an external force, that is, the waterstop or the M-shaped waterstop. When the two ends of the waterstop protection device are fixed, they are squeezed and folded to form one or more M-shaped structural shapes. When the distance between the two ends becomes longer, the waterstop or the waterstop protection device will be squeezed The pressure decreases, elongation occurs, the folds become smoother, and the M-shaped state may become less obvious or even disappear.

As a preferred solution of the present utility model, the materials of the first connecting part, the second connecting part and the telescopic part are elastic materials. The first connecting part and the second connecting part are respectively connected with the main body structure of the final joint and the pushing beam, so that the two sides of the protection device form a sealed isolation structure, and the material of the two connecting parts is set to elastic material, and the two When the two sides are connected separately, an elastic seal is formed to ensure good sealing requirements. At the same time, the telescopic part is made of elastic material, which can be stretched within a certain range, has a good elongation rate, and improves the performance of the protective device.

As a preferred solution of the present invention, the elastic material is made of carbon fiber cloth and rubber.

As a preferred solution of the utility model, the M-shaped waterstop protective device has flame resistance.

The protective device is made of neoprene (CR). Since ordinary rubber can burn under an open flame, it will continue to burn after the open flame is removed. Neoprene rubber can burn under an open flame, but it will extinguish after the open flame is removed. Through welding The experiment verified the flame resistance of the M-shaped waterstop protection device. During the experiment, no combustion was observed, and the large welding slag sank in the hole after cooling, forming a blind hole.

As a preferred solution of the utility model, the M-shaped waterstop protection device has seawater resistance. The seawater corrosion resistance rate of the protective device is ≤10% or ≤-5%.

As a preferred solution of the utility model, the M-shaped waterstop protection device has extrusion resistance. The compression set rate of the protective device is ≤30% as the optimum.

As a preferred solution of the utility model, the M-shaped waterstop protection device has high temperature resistance. It is optimal for each index of the protection device in the hot air aging test to meet the following ranges:

Tensile strength change rate ≥ 12.8MPa;

Change rate of elongation at break ≤ 20%;

Hardness (Shore A) ≤ +8 degrees;

There is no crack under the conditions of ozone aging at 38℃×48h, 20%, 50pphm.

As a preferred solution of the utility model, the M-shaped waterstop protection device has scratch resistance. The wear of the protective device ≤ 0.5 (cc) is optimal.

As a preferred solution of the utility model, the M-shaped waterstop protection device has pull resistance. The tensile strength of the protective device ≥ 17MPa and the elongation at break ≥ 400% are the best.

As a preferred solution of the utility model, the M-shaped waterstop protection device has impact resistance. The strength of the protective device (Shore A) ≤ 78 degrees and the tear resistance ≥ 70KN/m are optimal.

Correspondingly, the utility model also provides an installation assembly for fixing the M-shaped waterstop protection device, including a first pressure-bearing part and a first pressure-applying part, and the first pressure-bearing part is opposite to the first pressure-applying part. The M-shaped waterstop protection device is clamped and fixed, and the installation component is provided with a connection structure connected with the final joint. By arranging the first pressure-bearing part and the first pressure-applying part, the M-shaped water-stop protection device is fixed and installed, thereby forming reliable and continuous protection for the M-shaped water-stop.

As a preferred solution of the present invention, the first pressure-bearing member includes an installation plane for placing the M-shaped waterstop protection device.

The first pressure-bearing part can be an independent component, which is installed on the body structure of the final joint and the push beam for arranging the protection device, and the first pressure-bearing part can also be a ready-made part on the final joint, The M-shaped waterstop protector is clamped directly on the mounting plane of the ready-made component by the first pressure piece.

When the first pressure-bearing part adopts an independent component, the first pressure-bearing part also includes a fixed plane for installing itself, the fixed plane and the installation plane are arranged opposite, and the first pressure-bearing part is installed on the final joint through the fixed plane On the main body structure and the push beam, the opposite side of the fixed plane is the installation plane, which is used to arrange the protection device.

As a preferred solution of the present utility model, the first pressing member includes a clamping plane for clamping the protection device.

The connecting structure includes a through hole opened on the first pressure applying part, and the first pressure receiving part is also provided with a threaded bottom hole correspondingly, and the connecting part is used to pass through the through hole and the threaded bottom hole to realize the connection between the first pressure applying part and the first pressure applying part. For the connection of the pressure-bearing parts, when the first pressure-applying part is used to clamp the protection device, the clamping plane of the first pressure-applying part and the installation plane of the first pressure-bearing part are set opposite to each other to form a clamping device for clamping the protection device. space, the connecting bolt passes through the through hole and is connected with the threaded bottom hole, so as to realize the fixing of the first pressure applying member.

When the connecting bolt passes through the first pressure-applying part and the first pressure-bearing part to connect the two, it can either pass through the M-shaped waterstop protection device or not pass through the protection device. When the connecting bolt does not pass through the protection device, the protection device is completely fixed by the clamping force between the first pressure-bearing part and the first pressure-applying part.

The first pressure-bearing part is the second pressure-applying part used to clamp the M-shaped waterstop at the same time. In order to install the M-shaped waterstop, the second pressure-applying part is arranged to clamp and fix the M-shaped waterstop At the same time, in order to simplify the construction process and install equipment, when installing the M-shaped waterstop, the second pressure member clamping the M-shaped waterstop is also used as the first pressure-bearing member for installing the M-shaped waterstop protection device, It includes two parallel and oppositely arranged planes, one plane is used to clamp the M-shaped waterstop, the other plane is used to arrange the M-shaped waterstop protection device, and then the pressure member of the M-shaped waterstop protection device is used Clamp and fix the protection device.

The second pressure member for clamping the M-shaped waterstop is a strip plate and a corner plate. The surface of the strip plate is used to clamp the M-shaped waterstop, and the M-shaped waterstop is along the edge of the strip plate. Arranged in the direction of length extension, there is an installation plane on the body structure of the final joint and the part where the push beam is used to install the M-shaped waterstop. The M-shaped waterstop is arranged on the installation plane and fixed by a strip plate, so that The two sides of the M-shaped waterstop are respectively installed on the body structure of the final joint and the push beam, and are sealed at the installation site to prevent the infiltration of seawater. The corner plate is set at the corner and connected with the strip plate to form the end face of the final joint. For the corresponding closed ring structure, since the end face shape of the final joint is a rectangular structure, the strip plate is used as the second pressure member at the straight part, and the corner plate is used for the transition at the corner part, and the surface of the corner plate is M-shaped. Hose holder. The M-shaped waterstop itself has its own sealing properties, and it can be sealed by installation.

The first pressure-bearing part for installing the M-shaped waterstop protector includes a strip plate and a corner plate, and the M-shaped waterstop protector is arranged on the plate surface of the strip plate and extends along the length of the strip plate The direction is arranged, the corner plate is set at the corner, and it is connected with the strip plate to form a closed ring structure corresponding to the end face of the final joint. Since the end face of the final joint is a rectangular structure, the strip plate is used as the first pressure on the straight part For parts, the corner plate is used for transition at the corner, and the surface of the corner plate is clamped by the M-shaped waterstop protection device.

The first pressure member used to clamp the M-shaped waterstop protection device is a strip plate and a corner plate, and the plate of the strip plate forms a clamp on the M-shaped waterstop protection device, and the protection device is along the strip plate. The length direction of the joint is extended, the corner plate is set at the corner, and connected with the strip plate to form a closed ring structure corresponding to the end face of the final joint. Since the end face shape of the final joint is a rectangular structure, the strip plate is used as the first straight part. For a pressure part, a corner plate is used for transition at the corner, and the surface of the corner plate is clamped by the M-shaped waterstop protection device, thereby completing the fixing and sealing of the protection device.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

1. By providing an M-shaped waterstop protection device, install it on the outside of the M-shaped waterstop to protect the M-shaped waterstop, effectively prevent it from being scratched and damaged, and ensure construction progress and construction safety;

2. The material of the M-shaped waterstop protection device is elastic material, and its connecting part can be connected and sealed with the installation component. The telescopic part can be bent and stretched freely within the horizontal movement range of the pushing beam, and it can be connected with the movement of the pushing beam. The status matches.

Description of drawings

Figure 1 is a schematic elevation view of the final joint of the immersed tunnel.

Fig. 2 is a partially enlarged view of A in Fig. 1 .

Fig. 3 is a three-dimensional schematic diagram of the installed M-shaped waterstop.

Fig. 4 is a structural schematic diagram of the M-shaped waterstop protection device of the present invention.

Fig. 5 is a sectional view along C-C in Fig. 4 .

Fig. 6 is a three-dimensional structural schematic view of the M-shaped waterstop protection device installed in Embodiment 2.

Fig. 7 is a three-dimensional structural schematic view of the M-shaped waterstop protection device installed in Embodiment 3.

Figure 8 is a cross-sectional view of the M-shaped waterstop protector installed after the final joint.

Fig. 9 is a structural schematic view of Fig. 2 after the M-shaped waterstop protection device is installed.

FIG. 10 is a partially enlarged view at B in FIG. 9 .

Fig. 11 is a large sample diagram after installation of the M-shaped waterstop protection device.

Marks in the figure: 1-final joint, 101-pipe joint 1, 102-pipe joint 2, 2-shear key, 3-jack, 4-push trabecular, 5-Gina waterstop, 6-trabecular slide Block, 7-M-shaped waterstop, 8-body structure, 9-pressure plate, 10-layer, 11-M-shaped waterstop protection device, 111-first connection part, 112-second connection part, 113-telescopic Part, 12-first pressure-bearing part, 121-installation plane, 13-first pressure-applying part, 131-clamping plane, 14-second pressure-bearing part, 15-second pressure-applying part, 16-fastener , 17-installation hole, 18-adjacent pipe section.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Example 1

As shown in Figure 4, Figure 5 and Figure 8, the M-shaped waterstop protection device 11 includes a first connecting part 111 for installation on the final joint body structure 8 and a first connecting part 111 for installation on the push beam 4 The second connection part 112, the telescopic part 113 is between the first connection part 111 and the second connection part 112, the length of the telescopic part 113 is variable, the first connection part 111, the second connection part 112 It has an integrated structure with the telescopic part 113.

The end of the push girder 4 is arranged with a Gina waterstop 5. When the push girder moves under the action of the jack, its end contacts the surface of the installed adjacent pipe joint. Since the final joint is immersed in seawater as a whole , seawater will enter the cavity gap between the push beam and the body structure, and an M-shaped water stop is set. One side of the M-shaped water stop is connected to the final joint body structure, and the opposite side is connected to the push small On the beam, when the jack arranged in the annular cavity at the end of the final joint pushes the pushing girder to slide horizontally, the M-shaped waterstop prevents the seawater from pushing the girder, thereby achieving the purpose of water stop and protecting the thrusting system. normal work.

The M-shaped waterstop is the lifeline of the joint cavity of the final joint, and it plays a vital role. Once the M-shaped waterstop leaks, it will directly affect the operation of the jacking system, thereby affecting the installation of the entire final joint. In order to reduce the risk of damage to the M-shaped waterstop, considering the installation of the M-shaped waterstop and other factors, the M-shaped waterstop protection device of this scheme is used to protect the M-shaped waterstop.

The installation method of the M-shaped waterstop protection device corresponds to the installation method of the M-shaped waterstop belt. It includes the first connection part, the second connection part and the telescopic part arranged in the middle of the two connection parts. The three parts are integrated. Type structure, the first connecting part and the second connecting part are arranged opposite to each other, located on both sides of the telescopic part, the first connecting part is installed on the final joint body structure, and the second connecting part on the other side is installed on the pushing beam. The M-shaped waterstop protection device is positioned at the side of the M-shaped waterstop, thereby forming protection for the M-shaped waterstop.

Specifically, the M-shaped waterstop protection device is arranged on the outside of the M-shaped waterstop, that is, on the side close to the sea water. After the two connecting parts of the M-shaped waterstop protection device are installed respectively, a relatively closed isolation structure is formed on both sides. , to avoid the direct contact between the M-shaped waterstop and the outside world, which will cause scratches, damage and other problems.

The length of the telescopic part refers to the distance between the two connecting parts. The length of the telescopic part of the M-shaped waterstop protection device is set to be variable to ensure that when the second connecting part moves with the push beam, the telescopic The upper part also expands and contracts freely, corresponding to the length of the M-shaped waterstop, forming a protection for the M-shaped waterstop.

The M-shaped waterstop protection device is a ring-shaped closed structure, the outer side of the ring is the first connecting part, and the distance between the installation part of the final joint body structure and the center of the final joint is A, which is the same as the distance from the outer side of the ring to the center of the final joint. Correspondingly, the inner side of the ring is the second connecting part, and the distance between the mounting position of the pushing beam and the center of the final joint is B, which corresponds to the distance between the inner side of the ring and the center of the final joint.

The outside of the ring is installed on the final joint body structure, and the inside of the ring is installed on the push beam. The installation parts on both sides are removed from the ring surface, and the ring part in the middle is used as the expansion part, which can freely expand and contract with the movement of the push beam. The M-shaped waterstop protection device with a closed ring structure has a bar-shaped cross-section, the two ends are respectively the first connection part and the second connection part, and the middle part is the telescopic part.

The arrangement of the M-shaped waterstop protection device is the same as that of the M-shaped waterstop. In this embodiment, the M-shaped waterstop is arranged along the entire circle of the end face of the final joint, and is placed between the outer end of the pushing beam and the body of the final joint. M-shaped waterstops are arranged between the structures, so as to prevent seawater from entering the cavity gap between the pushing girder and the body structure. Correspondingly arranged on the outer side of the pushing girder and on the final joint body structure, the M-shaped waterstop protection device is located outside the M-shaped waterstop to protect the waterstop.

As one of the implementations, the telescopic part is a flexible material, which is a material with soft strength and toughness, which can adapt to a certain deformation and bending without cracking. The flexible material can be made of cloth, rubber and other materials. . The telescoping part is made of flexible material, and the telescoping part can freely form folds, and can be bent and stretched freely within the horizontal movement range of the pushing trabecular, matching the motion state of the pushing trabecular.

The M-shaped waterstop or M-shaped waterstop protection device involved in the utility model, its M-shaped state does not refer to a certain fixed state, but an unfixed state under the action of an external force, that is, the waterstop or the M-shaped waterstop. When the two ends of the waterstop protection device are fixed, they are squeezed and folded to form one or more M-shaped structural shapes. When the distance between the two ends becomes longer, the waterstop or the waterstop protection device will be squeezed The pressure decreases, elongation occurs, the folds become smoother, and the M-shaped state may become less obvious or even disappear.

As one of the implementations, the material of the first connecting part, the second connecting part and the telescopic part is elastic material, and the first connecting part and the second connecting part are respectively connected with the body structure of the final joint and the pushing trabecular, so that the protection The two sides of the device form a sealed isolation structure, and the material of the two connecting parts is set to elastic material. When the two sides are connected respectively, an elastic seal is formed to ensure good sealing requirements, so that the M-shaped waterstop is formed. Protect. At the same time, the telescopic part is made of elastic material, which can be stretched within a certain range, has a good elongation rate, and improves the performance of the protective device.

As one of the preferred implementation manners, the elastic material is made of carbon fiber cloth and rubber composite material, pure rubber material or other elastic materials with waterproof function can also be used.

As one of the better implementations, the M-shaped waterstop protection device has flame resistance, and the material of the protection device is neoprene (CR). Since ordinary rubber can burn under an open flame, it will continue to burn after the open flame is removed. , and the use of neoprene can burn under the open flame, but it will go out after the open flame is removed. The flame resistance of the M-shaped waterstop protection device is verified by welding experiments. During the experiment, there is no burning situation. After the large welding slag is cooled sinks in the hole, forming a blind hole.

The M-shaped waterstop protection device has seawater resistance. When the seawater corrosion resistance rate of the protection device is ≤10% or ≤-5%, it is optimal.

The M-shaped waterstop protection device has extrusion resistance, when the compression set rate of the protection device is ≤30%, it is optimal.

The M-shaped waterstop protection device has high temperature resistance, and it is optimal if the various indicators of the protection device in the hot air aging test meet the following ranges:

Tensile strength change rate ≥ 12.8MPa;

Change rate of elongation at break ≤ 20%;

Hardness (Shore A) ≤ +8 degrees;

There is no crack under the conditions of ozone aging at 38℃×48h, 20%, 50pphm.

The M-shaped waterstop protection device is anti-scratch, and the wear of the protection device is ≤0.5 (cc) is the best.

The M-shaped waterstop protection device has tensile resistance, and the tensile strength of the protection device is ≥ 17MPa and the elongation at break ≥ 400% is the best.

The M-shaped waterstop protection device has impact resistance, and the strength of the protection device (Shore A) ≤ 78 degrees and tear resistance ≥ 70KN/m are optimal.

Example 2

As shown in Figure 9 and Figure 10, the installation assembly for fixing the M-shaped waterstop protection device includes a first pressure-bearing part 12 and a first pressure-applying part 13, and the first pressure-bearing part 12 and the first pressure-applying part 13 The pressure piece 13 clamps and fixes the M-shaped waterstop protection device 11. The installation assembly is provided with a connection structure connected to the final joint. By setting the first pressure-bearing piece 12 and the first pressure-applying piece 13, the M-shaped waterstop The waterstop protection device 11 is fixed and installed, thereby forming reliable and continuous protection for the M-shaped waterstop 7 .

The first pressure bearing part 12 includes an installation plane 121 for placing the M-shaped waterstop protection device 11 .

As one of the implementations, the first pressure-bearing member 12 can be an independent component, installed on the body structure 8 of the final joint and the push beam 4 respectively, and arranged in a full circle along the end surface of the final structure, and each push The first pressure-bearing parts 12 are arranged at the positions of the small beams 4. The first pressure-bearing parts 12 are used to arrange the M-shaped waterstop protection device 11, and the first pressure-bearing parts 12 are sealed and connected to the body structure 8 of the final joint. and the push beam 4, the first pressure-bearing member 12 can be fixed by welding or bolted connection, when the bolted connection is adopted, the sealing can be performed through the contact surface, or the sealing member can be used for sealing and installation. After the first pressure-bearing part, arrange the M-shaped waterstop protection device on the installation plane of the first pressure-bearing part, and then rely on the pressure-applying part to realize installation and sealing.

Through the technical solution of this embodiment, it can be clearly obtained that the first pressure-bearing member 12 can also be a ready-made part on the final joint, that is, the M-shaped waterstop protection device is directly clamped on the installation plane of the ready-made part On, to achieve connection and sealing.

When the first pressure-bearing part adopts an independent component, as one of the preferred embodiments, the first pressure-bearing part also includes a fixing plane for installing itself, the fixing plane and the installation plane are arranged oppositely, and the first pressure-bearing part The pressing piece is installed on the body structure of the final joint and the pushing girder through its own fixing plane, and the opposite side of the fixing plane is the installation plane, which is used for arranging the protection device.

The first pressure-applying part 13 includes a clamping plane 131 for clamping the protection device. The connection structure of the installation assembly includes a through hole opened on the first pressure-applying part 13, and the first pressure-bearing part 12 is also provided with a corresponding The threaded bottom hole, use bolts or screws and other related connecting parts to pass through the through hole and the threaded bottom hole to realize the connection between the first pressure applying part 13 and the first pressure receiving part 12. When the first pressure applying part 13 is used to clamp the protection device At this time, the clamping plane 131 of the first pressure applying member 13 and the installation plane 121 of the first pressure receiving member 12 are arranged opposite to each other to form a clamping space for clamping the protection device, and the connecting piece passes through the through hole and the threaded bottom hole, The fixing of the first pressing member 13 is realized.

When the connecting bolt passes through the first pressure-applying member 13 and the first pressure-bearing member 12 to connect the two, it can either pass through the M-shaped waterstop protection device 11 or not pass through the protection device. When the connecting bolts do not pass through the protection device, the protection device is completely fixed by the clamping force between the first pressure-bearing part 12 and the first pressure-applying part 13 .

As shown in Figure 6, this figure is a three-dimensional display of the section after the M-shaped waterstop protection device is installed. The two ends of the M-shaped waterstop 7 are respectively arranged on the body structure 8 of the final joint and the push beam 4. The second pressure-bearing part and the second pressure-applying part clamp, fix and seal the M-shaped waterstop. The end of the M-shaped waterstop is pressed and sealed by the bead. There are connecting bolts on the pressure piece, and the connecting bolts pass through the second pressure-bearing part and the second pressure-applying part, so as to press the pressure strip tightly, and realize the installation and sealing of the M-shaped waterstop. The M-shaped waterstop protection device is arranged on the The outer side of the M-shaped waterstop relies on the first pressure-bearing part and the first pressure-applying part to realize the clamping and sealing of the M-shaped waterstop protection device. In this embodiment, the first pressure-bearing part is the body of the final joint The structure relies on the installation plane to install the protection device. The first pressure member is also a strip plate with installation holes 17 on it. In the corresponding position of the installation holes 17, a threaded bottom hole is opened on the final joint and connected by bolts. The installation components at both ends of the M-shaped waterstop protection device are the same, the difference lies in the opening position of the threaded bottom hole corresponding to the installation hole, one end is opened on the body structure, and the other end is opened on the push beam.

Example 3

The installation assembly of this embodiment is basically the same as that of Embodiment 2, the difference is:

As shown in Figures 7 and 10, the first pressure-bearing part 12 is also used as the second pressure-applying part 15 for clamping the M-shaped waterstop 7. In order to install the M-shaped waterstop, the second pressure-applying part 15 is arranged The M-shaped waterstop 7 is clamped and fixed. At the same time, in order to simplify the construction process and install the equipment, when the M-shaped waterstop is installed, the second pressure member 15 that clamps the M-shaped waterstop 7 is also used to install the M-shaped waterstop. The first pressure-bearing part 12 of the waterstop protection device 11, in this embodiment, a strip-shaped plate is used as the first pressure-bearing part 12 and the second pressure-applying part 15, and the strip-shaped plate includes two parallel and oppositely arranged The bottom plane and the second pressure-bearing part 14 are used to clamp the M-shaped waterstop 7, and the upper surface is used to arrange the M-shaped waterstop protection device 11, and then the M-shaped waterstop protection device is used. The first pressing member 13 clamps and fixes the protection device.

In this embodiment, as shown in FIG. 11 , the first pressing member 13 is a strip-shaped plate, and a connection hole is opened on the first pressing member 13, and a fastener 16 is used to pass through the first pressing member and the M-shaped stop. The water belt protection device is connected with the first pressure-bearing part, thereby completing the installation and sealing of the M-shaped water-stop, and achieving the purpose of protecting the M-shaped water-stop.

The second pressure member 15 for clamping the M-shaped waterstop includes a strip plate and a corner plate, the plate surface of the strip plate is used to clamp the M-shaped waterstop, and the M-shaped waterstop is along the The length extension direction of the final joint is arranged. On the body structure 8 of the final joint and the push beam 4, there is an installation plane at the position for installing the M-shaped waterstop. The M-shaped waterstop is arranged on the installation plane. The two sides of the M-shaped waterstop are respectively installed on the body structure of the final joint and the push beam, and are sealed at the installation site to prevent the infiltration of seawater. The connection forms a closed ring structure corresponding to the end face of the final joint. Since the end face of the final joint is a rectangular structure, the strip plate is used as the second pressure member at the straight part, and the corner plate is used for the transition at the corner part. The board is clamped against the M-shaped waterstop. The M-shaped waterstop itself has its own sealing properties, and it can be sealed by installation.

As one of the better implementations, the first pressure-bearing part used to install the M-shaped waterstop protection device includes a strip plate and a corner plate, and the M-shaped waterstop protection device is arranged on the surface of the strip plate , and arranged along the length extension direction of the strip plate, the corner plate is set at the corner, and connected with the strip plate to form a closed ring structure corresponding to the end face of the final joint. The strip plate is used as the first pressure member at the part, and the corner plate is used for the transition at the corner, and the surface of the corner plate is clamped by the M-shaped waterstop protection device.

Similarly, as one of the better implementations, the first pressure member used to clamp the M-shaped waterstop protection device is a strip plate and a corner plate, and the plate of the strip plate faces the M-shaped waterstop The protection device forms a clamp, and the protection device is arranged and extended along the length direction of the strip plate. The corner plate is arranged at the corner and connected with the strip plate to form a closed ring structure corresponding to the end face of the final joint. Since the shape of the end face of the final joint is rectangular In the straight part, the strip plate is used as the first pressure member, and the corner plate is used to make the transition at the corner. The surface of the corner plate is clamped by the M-shaped waterstop protection device, so as to complete the fixing and installation of the protection device. seal.

Example 4

The installation method of the M-shaped water-stop protection device adopts the centering method to install the M-shaped water-stop protection device.

The centering method refers to the installation in half within the length range of the M-shaped water-stop protection device, first fix the two ends of the M-shaped water-stop protection device, and then fix the middle position, and then place the two halves The section is divided in half again, and the middle positions of the two sections after the halving are respectively fixed, and the cycle continues in this way to ensure that the M-shaped waterstop protection device is evenly paved on the installation site.

Since the sum of the lengths of each side of the end face of the final joint does not exactly correspond to the prefabricated length of the M-shaped waterstop protection device, it is necessary to measure the length of each side of the end face of the final joint on site, and the sum of the lengths of each side should be equal to the M-shaped waterstop Length with guard. The method of paving the M-shaped waterstop protection device in the middle can make the M-shaped waterstop protection device evenly paved to its installation position, ensure the smoothness of the pavement, and avoid the occurrence of certain places during the pavement process. The large balance of the M-shaped waterstop protector forms the folds.

This method is more suitable for flexible M-shaped waterstop protection devices, especially for M-shaped waterstop protection devices that use elastic materials as materials. The balance is often large, and the smoothness of the pavement of the protection device cannot be guaranteed.

In the specific practice of installing the M-shaped waterstop protection device, in order to ensure that the centering method can be better implemented, the installation of the M-shaped waterstop protection device specifically includes the following steps:

a. Measure the length of each side of the end face of the final joint;

b. Measure the length of the M-shaped waterstop protection device, which is equal to the sum of the lengths of the sides of the end face of the final joint;

c. Use the split method to pave the M-shaped waterstop protection device;

d. Use the first pressure member to clamp and fix the M-shaped waterstop protection device.

The steps a and b are not limited in order, and the order can be exchanged, or the two steps can be performed simultaneously.

As one of the better implementation methods, in step c, specifically include the following steps:

c1. Separate and mark each side of the final joint several times, and the number of times of centering of each side corresponds to its length;

c2. Divide the M-shaped waterstop protection device into the same number of segments as the number of sides of the final joint, and divide and mark each segment several times. The number of divisions of each segment of the protection device corresponds to the length of each segment itself ;

c3. Connect the M-shaped waterstop protection device with the final joint correspondingly, and temporarily fix the protection device with fasteners.

During the process of paving the M-shaped waterstop protection device, when marking its length direction and temporarily fixing its corresponding position with the final joint, it includes fixing the two sides of the protection device on the body structure and top of the final joint respectively. Pushing on the trabecular, that is, when marking each center position of the protective device and fixing it with the final joint, it includes fixing the two sides of the protective device on the main body structure and the pushing trabecular respectively.

When centering each side of the final joint and each section of the M-shaped waterstop protection device for multiple times, the number of times of centering corresponds to its length. According to its length, it is 1/2, 1/4, 1/8, 1 Mark /16, 1/32...etc.

As one of the better implementation manners, in step c3, the corresponding connection is performed according to the following sequence of steps:

c31. Install the M-shaped waterstop protection device on the top of the final joint;

c32. Install the M-shaped waterstop protection device on the left and right walls of the final joint;

c33. Install the M-shaped waterstop protection device at the bottom of the final joint.

specifically:

Step 1: Pull the upper left corner of the M-shaped waterstop protection device to the upper left corner of the final joint top and fasten it with an iron fastener. Similarly, pull the upper right corner of the M-shaped waterstop protection device to the top of the final joint The upper right corner is fastened with an iron fastener;

The second step: the mark at the top 1/2 position of the M-shaped waterstop protection device corresponds to the mark at the top 1/2 position of the final joint, and fasten and fix it with iron fasteners. At this time, the M-shaped waterstop The protective device should be fastened in the center, and the left and right sides should drop slightly;

The third step: fix the 1/4 position of the M-shaped waterstop protection device at the 1/4 position of the final joint top in the same way as the second step;

Step 4: Connect the 1/8 and 1/16 positions in the same way as in the second step. When the entire M-shaped waterstop protection device has been temporarily fixed, tighten the first pressure member and connect the upper left corner And the two-section M-shaped waterstop protection device in the upper right corner;

Step 5: Install the first pressure piece on the top of the entire section, then tighten and fix it, and then connect the two sections of M-shaped waterstop protection devices on the left and right walls;

Step 6: The installation method of the two sections of M-shaped waterstop protection device on the left and right walls is the same as the installation method of the protection device at the top of the final joint. First, use the lower left and right corners of the M-shaped waterstop protection device Fasten the iron fasteners, and then install the entire M-shaped waterstop protection device in a split method, and then clamp and fix it with pressure parts;

Step 7: The installation process of a section of the M-shaped waterstop protection device at the bottom is relatively simple, because the lower left corner and the lower right corner have been connected before, as long as the entire section of the M-shaped waterstop protection device is installed by dividing the center. Yes, then fasten all bolts to the first compression member.

This divided method can install the M-shaped waterstop protection device evenly, can be compacted and compacted, and will not affect the construction period, ensuring the smooth installation of the paved M-shaped waterstop protection device.

Considering that the total length of the prefabricated M-shaped waterstop protection device is longer than the sum of the lengths of the sides of the final joint, the M-shaped waterstop protection device is first cut. As one of the better implementation methods, the The M-shaped waterstop protector at the bottom section is cut and connected seamlessly. The M-shaped waterstop protection device is connected at the bottom, which is easy to operate and makes the connection tighter and more reliable.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. a kind of M shapes waterstop protective device, it is characterised in that including for first on FS final spice body construction Connecting portion and for the second connecting portion on pushing tow girder, is flexible between the first connecting portion and second connecting portion Portion, the length of the pars contractilis is variable, and the first connecting portion, second connecting portion and pars contractilis are an integral structure.

2. M shapes waterstop protective device according to claim 1, it is characterised in that M shape waterstops protective device is along most The closed circular structure of terminating end surface arrangement.

3. M shapes waterstop protective device according to claim 2, it is characterised in that the pars contractilis is flexible material.

4. the M shape waterstop protective devices according to Claims 2 or 3, it is characterised in that the first connecting portion, second The material of connecting portion and pars contractilis is elastic material.

5. M shapes waterstop protective device according to claim 4, it is characterised in that the elastic material is rubber.