CN204267915U - Strengthen the two rubber sealing reinforced concrete sewer pipe of jacking construction corrosion protection - Google Patents

Abstract

The anti-corrosion double-rubber ring sealed reinforced concrete drainage pipe for reinforced jacking construction of the utility model includes a drainage pipe body and socket steel rings and socket steel rings located at both ends of the drainage pipe body. The steel ring can be plugged into the steel ring of the socket, and the body of the drainage pipe is provided with a double-layer steel skeleton, and the double-layer steel skeleton includes an inner steel skeleton and an outer steel skeleton, and the inner steel skeleton One end of the socket is welded with the socket steel ring, and the other end is welded with the socket steel ring. A plurality of sealing grooves are arranged on the ring surface of the socket steel ring, and sealing rings are arranged in the sealing grooves. There are also annular grooves at both ends, and a circular reinforced steel ring is installed in the annular grooves. The end surface of the drain pipe body is provided with wooden rubber pads or rubber plates. The anti-corrosion double rubber for reinforced jacking construction of the utility model The ring-sealed reinforced concrete drainage pipe can ensure that the pipe body and the port concrete are compact, high in strength, large in the port's jacking force, and strong in corrosion resistance.

Description

Strengthening jacking construction with anti-corrosion double rubber rings to seal reinforced concrete drainage pipes

technical field

The utility model relates to a reinforced concrete drainage device for jacking construction, in particular to a reinforced concrete drainage pipe for jacking construction method.

Background technique

In the JC/T640-2010 standard for reinforced concrete drainage pipes for jacking construction method, common jacking construction pipes have defects such as loose joints during construction, easy damage to the concrete at both ends of the pipes, and easy wear and tear of the joint steel ring during construction. In addition, , the anti-corrosion paint on the surface of the interface steel ring is easily worn off, and the surface is extremely easy to corrode. After 2-5 years after the construction is completed, the steel ring will be severely corroded, and the interface will be in a free state. In case of an earthquake or uneven settlement of the foundation, the interface will appear. Displacement, the serious interface will be pulled apart, causing serious sewage leakage; sewage or industrial wastewater often contains corrosive substances, which have a strong corrosive effect on the inner wall of reinforced concrete pipes, and these corrosive substances are corroding the inner wall of the pipe Finally, it is easy to enter the soil through the pipeline, causing certain pollution to the surrounding soil.

Utility model content

The purpose of this application is to solve the technical problems of the current jacking construction method, such as the joints of reinforced concrete drainage pipes are not tight, the concrete at both ends of the pipe is easily damaged, and the steel ring of the interface is easy to wear during the construction process, and provide a method that can ensure that the pipe body and the port concrete Dense, high-strength, reinforced concrete drainage pipes with anti-corrosion double rubber rings for reinforced jacking construction with large port jacking force.

In order to accomplish the purpose of the invention of this application, this application sampled the following technical solutions: a reinforced concrete drainage pipe sealed with anti-corrosion double rubber rings for reinforced jacking construction, including a drainage pipe body and two ends of the drainage pipe body The socket steel ring and the socket steel ring, the socket steel ring can be plugged into the socket steel ring, the body of the drain pipe is provided with a double-layer steel skeleton, and the double-layer steel skeleton includes the inner steel skeleton and an outer steel skeleton, one end of the inner steel skeleton is welded to the socket steel ring, and the other end is welded to the socket steel ring, and the outer ring surface of the socket steel ring is provided with a plurality of sealing grooves, A sealing ring is provided in the sealing groove, and an annular groove is provided at both ends of the outer wall of the drainage pipe, and a circular reinforcing steel ring is installed in the circular groove, close to the end surface of the circular reinforcing steel ring There is a ring-shaped wooden rubber pad or a ring-shaped rubber plate, and the inner and outer ring surfaces of the socket steel ring and the socket steel ring are coated with an epoxy zinc-rich primer composite coating. The inner peripheral surface of the body is fixedly provided with an anti-corrosion inner liner closely attached to the drain pipe body.

The utility model uses an anti-corrosion double rubber ring to seal a reinforced concrete drainage pipe for reinforced jacking construction, wherein the anti-corrosion inner lining layer is a modified PVC inner lining layer, and the outer surface of the modified PVC inner lining layer is provided with several A T-shaped key, the T-shaped key is embedded into the drain pipe body by mechanical embedding, and the outer surface of the modified PVC inner lining is closely attached to the inner peripheral surface of the drain pipe body, so that The inner surface of the modified PVC lining layer is a smooth surface.

The utility model uses an anti-corrosion double rubber ring to seal a reinforced concrete drainage pipe for reinforced jacking construction, wherein the T-shaped keys are spirally distributed on the outer surface of the modified PVC inner liner.

The utility model provides an anti-corrosion double-rubber ring sealed reinforced concrete drainage pipe for reinforced jacking construction, wherein the thickness of the modified PVC inner lining layer is not less than 1.5mm.

The utility model uses an anti-corrosion double-rubber ring to seal a reinforced concrete drainage pipe for reinforced jacking construction, wherein the modified PVC inner lining layer located on the socket side of the drainage pipe body and the modified PVC inner lining layer located on the socket side The lining is formed in one piece.

The utility model uses an anti-corrosion double-rubber ring to seal a reinforced concrete drainage pipe for reinforced jacking construction, wherein the modified PVC inner lining layer located on the socket side of the drainage pipe body and the modified PVC inner lining layer located on the socket side The linings are fixedly connected by welding or bonding.

The utility model is a new reinforced concrete drainage pipe with anti-corrosion double rubber rings for reinforced jacking construction, wherein the pipe body of the drainage pipe is provided with a groove at one end of the steel ring of the socket, and the groove wall of the groove is The socket steel ring is installed, one end of the socket steel ring is inserted into the groove bottom of the groove, and the other end of the socket steel ring also has an outwardly extending slope.

The utility model is a reinforced concrete drainage pipe sealed with anti-corrosion double rubber rings for reinforced jacking construction, wherein the ring wall of the socket steel ring is provided with a joint test water inlet hole.

The utility model is a reinforced concrete drainage pipe sealed with anti-corrosion double rubber rings for reinforced jacking construction, wherein the socket steel ring and the socket steel ring are made of Q235 steel.

Compared with the prior art, the anti-corrosion double-rubber ring sealed reinforced concrete drainage pipe for reinforced jacking construction of the utility model has the following advantages: the steel socket steel ring and the socket steel ring have good sealing performance, are not prone to leakage and It is also in a state of hypoxia, so the steel ring of the socket is not easy to corrode, the service life of the pipe is greatly extended, the overall cost of the pipeline project is significantly reduced, and the social and economic benefits are improved; the outer wall concrete parts at both ends of the drain pipe body are equipped with anti-corrosion ports The circumferentially reinforced steel ring for concrete cracking can not only increase the jacking force of the port, but also act as a steel hoop, thus ensuring that the concrete at both ends of the pipe body is in a three-dimensional stress state during the jacking process, and the jacking force is effectively obtained. The strengthening of the pipe port has strong jacking force, which can carry out long-distance jacking construction, reduce the construction cost of the project, and improve the economic benefit of the project; at the same time, the connection between the interfaces is sealed with multiple sealing rings, the interface is very tight, and it can The relative rotation angle of the pipe body joint is allowed to be greater than 0.5 degrees, and the terrain adaptability is strong, which can effectively prevent the leakage of the pipe joint caused by the foundation, earthquake, etc.; the end faces of the pipe body are pasted with wooden rubber pads or rubber plates, which increases the buffer thickness of the port and flexibility, reduce the phenomenon of uneven jacking force and concentrated jacking force on the entire circumferential end face during jacking, and effectively prevent local damage to the pipe jacking port. The improved jacking construction uses anti-corrosion double rubber rings to seal reinforced concrete drainage The pipe has high strength, the water-stop sealing ring is not easy to shift to avoid leakage, and the pipe port has a large jacking force, which can smooth the construction and shorten the construction period. It has been verified by the test that no leakage will occur under the water pressure below 0.2MPa; the inside and outside of the steel plate are corrosion-resistant The epoxy zinc-rich primer with high grade and good wear resistance is applied with a composite coating, and the installation is very tight after the construction is completed. The inner peripheral surface of the drain pipe body is fixedly provided with an anti-corrosion lining layer that closely fits the drain pipe body, effectively isolating the toxic and harmful substances from the concrete, and the anti-corrosion lining layer is closely attached to the inner wall of the pipe, Improve the sealing performance, avoid mainly playing the role of pipeline anti-corrosion, and prevent harmful substances in sewage or wastewater from entering the soil, thereby not only improving the service life of the pipe body but also playing a role in environmental protection.

The anti-corrosion inner lining layer in the reinforced concrete drainage pipe sealed with anti-corrosion double rubber rings for reinforced jacking construction of the utility model is a modified PVC inner lining layer, and several T-shaped keys are arranged on the outer surface of the modified PVC inner lining layer , the T-shaped key is embedded into the drain pipe body by mechanical embedding, and the outer surface of the modified PVC lining layer is closely attached to the inner peripheral surface of the drain pipe body to ensure the combination of the modified PVC lining layer and the concrete inside the pipe Strong, to ensure the sealing performance of the pipeline, the inner surface of the modified PVC inner lining is a smooth surface, thereby reducing the water flow resistance in the pipeline; the modified PVC inner lining can be integrally formed or split, when using The split modified PVC inner lining is that the modified PVC inner lining on the side of the socket of the drain pipe body and the modified PVC inner lining on the side of the socket are fixedly connected by welding or bonding. , in order to prevent leaks at the joints due to poor sealing at the joints, corrode the steel rings at the joints, and further improve the service life of the pipe body; the use of modified PVC lining can also seal toxic and harmful substances in the pipe for centralized processing , to avoid leakage into the soil, to avoid pollution to the soil, and to enhance the environmental protection effect.

The anti-corrosion double rubber ring sealing reinforced concrete drainage pipe and method for reinforced jacking construction of the present invention will be further described below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the front view of the overall structure of the anti-corrosion double rubber ring sealed reinforced concrete drainage pipe for reinforced jacking construction of the present utility model;

Fig. 2 is a sectional view along the diameter direction of the pipe body of the anti-corrosion double rubber ring sealed reinforced concrete drainage pipe of the utility model for reinforced jacking construction;

Fig. 3 is a partial enlarged view of the anti-corrosion inner liner in the reinforced concrete drainage pipe sealed with anti-corrosion double rubber rings for reinforced jacking construction of the present invention.

Detailed ways

As shown in Figures 1-3, the reinforced concrete drainage pipe sealed with anti-corrosion double rubber rings for reinforced jacking construction in this embodiment includes a drainage pipe body 1 and socket steel rings 2 located at both ends of the drainage pipe body 1 and The socket steel ring 3 and the socket steel ring 2 can be plugged into the socket steel ring 3, and the drain pipe body 1 is provided with a double-layer steel skeleton 4, which includes an inner steel skeleton 41 and an outer steel skeleton Skeleton 42, one end of the inner reinforcement skeleton 41 is welded with the socket steel ring 2, and the other end is welded with the socket steel ring 3, the outer ring surface of the socket steel ring 2 is provided with a plurality of sealing grooves 21, and the sealing groove 21 is provided with " O" type sealing ring 22, the two ends of the outer wall of the drain pipe body 1 are also provided with an annular groove 11, and a ring-shaped reinforcing steel ring 12 is installed in the annular groove 11, and an annular ring is provided on the end surface close to the ring-directing reinforcing steel ring 12. The wooden rubber pad or the annular rubber plate 14, the inner and outer ring surfaces of the socket steel ring 2 and the socket steel ring 3 are coated with an epoxy zinc-rich primer composite coating. An anti-corrosion inner liner closely attached to the drain pipe body 1 is fixedly arranged on the inner peripheral surface of the drain pipe body 1 . The anti-corrosion lining layer is a modified PVC lining layer 5, and the thickness of the modified PVC lining layer 5 is not less than 1.5 mm. The outer surface 51 of the modified PVC inner liner 5 is provided with several T-shaped keys 53, and the T-shaped keys 53 are spirally distributed on the outer surface 51 of the modified PVC inner liner 5, and the T-shaped keys 53 are mechanically embedded. Embedded in the drain pipe body 1, and the outer surface 51 of the modified PVC inner lining layer 5 is closely attached to the inner peripheral surface of the drain pipe body 1, and the inner surface 52 of the modified PVC inner lining layer 5 is a smooth surface. The modified PVC inner lining on the side of the socket of the drain pipe body 1 and the modified PVC inner lining on the side of the socket are integrally formed, or they can be separated, that is, located on the socket of the drain pipe body 1. The modified PVC lining layer on the side and the modified PVC lining layer on the side of the socket are fixedly connected by welding or bonding.

Drain pipe body 1 is plugged with socket steel ring 2 and socket steel ring 3. The gap between socket steel ring 2 and socket steel ring 3 is as small as 2 mm. The socket steel ring 2 is characterized by sealing groove 21 Heterotropic steel, the sealing ring 22 is tightly clamped in the sealing groove 21, and this tightly combined interface form ensures excellent sealing performance of the pipe joint. Preferably, double sealing rings are used for sealing.

The socket steel ring 2 is provided with a joint test water inlet 23, the socket steel ring 2 and the socket steel ring 3 are made of Q235 steel, and the joint test water inlet 23 can be paired with the joint after the construction of the double rubber ring joint pipe is completed. Carry out tightness inspection to ensure the reliable sealing of the interface and prevent underground sewage leakage after the pipe jacking is completed.

Drainage pipe body 1 is used to set one end of the socket steel ring 3 with a groove, the socket steel ring 3 is installed on the groove wall, one end of the socket steel ring 3 is inserted into the bottom of the groove, and the socket steel ring 3 The other end also has an outwardly extending bevel, which facilitates insertion.

The above-mentioned anti-corrosion double rubber ring sealed reinforced concrete drainage pipe for reinforced jacking construction is produced by mandrel vibration process, and its production process is as follows:

1) Making socket steel rings and socket steel rings, the specific process is: steel plate blanking→rolling→rounding→making socket steel rings and socket steel rings;

2) Making a double-layer steel skeleton, the specific process is: wire rod → cold-rolled ribbed steel processing → making a steel skeleton → assembling a double-layer steel skeleton;

3) Prepare concrete, the specific process is: raw materials such as cement, sand, stone, etc. are measured → mixed → made into concrete;

4) Preparation of anti-corrosion inner lining: ironing film → film blanking, film cutting → lining welding → lining preheating

5) Production process: lining welding → install the double-layer steel skeleton on the chassis → install the outer mold → insert the inner mold → weld the socket steel ring and socket steel ring → weld the anchor steel bar → concrete into the mold → vibration forming → port Rolling→removal of inner and outer molds→renovation, inspection→marking, maintenance→removal of molds→renovation, inspection→pasting wooden pads or rubber sheets.

The improved jacking construction method is used to strengthen the jacking construction and use anti-corrosion double rubber rings to seal the reinforced concrete drainage pipe. The calculation of the bearing capacity and internal and external loads is based on CECS143:2002 "Code for Design of Buried Precast Concrete Circular Pipe Structures for Water Supply and Drainage Engineering" Design and reinforcement are designed according to GB50010-2002 Concrete Design Code.

The above description is an explanation of the utility model of the present invention, not a limitation of the utility model. For the limited scope of the utility model, please refer to the claims. The utility model can be modified in any form without violating the spirit of the utility model.

Claims (9)

1. A reinforced concrete drainage pipe sealed with anti-corrosion double rubber rings for reinforced jacking construction, comprising a drainage pipe body (1) and socket steel rings (2) positioned at both ends of the drainage pipe body (1) and the socket steel ring (3), the socket steel ring (2) can be plugged into the socket steel ring (3), and it is characterized in that: the drain pipe body (1) is provided with double-layer Steel bar skeleton (4), described double-layer steel bar skeleton (4) comprises inner layer steel bar skeleton (41) and outer layer steel bar skeleton (42), and one end of described inner layer steel bar skeleton (41) is welded described socket steel ring ( 2), the other end is welded with the socket steel ring (3), the outer ring surface of the socket steel ring (2) is provided with a plurality of sealing grooves (21), and the sealing groove (21) is provided with There is a sealing ring (22), and the two ends of the outer wall of the drain pipe body (1) are also provided with an annular groove (11), and a ring-direction reinforcing steel ring (12) is installed in the annular groove (11), close to the The ring-shaped wooden rubber pad or ring-shaped rubber plate (14) is provided on the end face of the ring-to-strengthening steel ring (12), and the inner and outer ring surfaces of the socket steel ring (2) and the socket steel ring (3) The top is coated with an epoxy zinc-rich primer composite coating, and an anti-corrosion lining layer closely attached to the drain pipe body (1) is fixedly arranged on the inner peripheral surface of the drain pipe body (1). 2. The anti-corrosion double rubber ring sealed reinforced concrete drainpipe for reinforced jacking construction according to claim 1, characterized in that: the anti-corrosion lining layer is a modified PVC lining layer (5), and the PVC Several T-shaped keys (53) are arranged on the outer surface (51) of the modified inner liner (5), and the T-shaped keys (53) are embedded into the drain pipe body (1) by mechanical embedding. inside, and the outer surface (51) of the modified PVC inner lining layer (5) is closely attached to the inner peripheral surface of the drain pipe body (1), and the inner surface of the modified PVC inner lining layer (5) (52) is a smooth surface. 3. The anti-corrosion double rubber ring sealed reinforced concrete drainage pipe for reinforced jacking construction according to claim 2, characterized in that: the T-shaped keys (53) are spirally distributed on the modified PVC inner liner (5) outer surface (51). 4. The reinforced concrete drainage pipe sealed with anti-corrosion double rubber rings for reinforced jacking construction according to claim 3, characterized in that: the thickness of the modified PVC inner lining layer (5) is not less than 1.5mm. 5. The reinforced concrete drainage pipe sealed with anti-corrosion double rubber rings for reinforced jacking construction according to claim 4, characterized in that: the modified PVC inner lining layer is located on one side of the socket of the drainage pipe body (1) It is integrally formed with the modified PVC lining layer on the side of the socket. 6. The anti-corrosion double rubber ring sealed reinforced concrete drainage pipe for reinforced jacking construction according to claim 4, characterized in that: the modified PVC inner lining layer is located on the socket side of the drainage pipe body (1) It is fixedly connected with the modified PVC inner lining on one side of the socket by welding or bonding. 7. The reinforced concrete drainage pipe sealed with anti-corrosion double rubber rings for reinforced jacking construction according to any one of claims 1-6, characterized in that: the drainage pipe body (1) is used to set the socket steel One end of the ring (3) has a groove, the socket steel ring (3) is installed on the groove wall of the groove, and one end of the socket steel ring (3) is inserted into the bottom of the groove, the The other end of the socket steel ring (3) also has an outwardly extending slope. 8. The anti-corrosion double rubber ring sealed reinforced concrete drainage pipe for reinforced jacking construction according to claim 7, characterized in that: the ring wall of the socket steel ring (2) is provided with a joint test water inlet hole (23 ). 9. The anti-corrosion double rubber ring sealed reinforced concrete drainage pipe for reinforced jacking construction according to claim 8, characterized in that: the socket steel ring (2) and the socket steel ring (3) are made of Q235 steel become.