CN221609998U - Electric heating, heat-preserving and drainage device for tunnel two liners - Google Patents
Electric heating, heat-preserving and drainage device for tunnel two liners Download PDFInfo
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- CN221609998U CN221609998U CN202420275587.6U CN202420275587U CN221609998U CN 221609998 U CN221609998 U CN 221609998U CN 202420275587 U CN202420275587 U CN 202420275587U CN 221609998 U CN221609998 U CN 221609998U
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- electric heating
- pipe
- heat preservation
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- 238000005485 electric heating Methods 0.000 title claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000004321 preservation Methods 0.000 claims abstract description 29
- 239000003063 flame retardant Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 210000002421 cell wall Anatomy 0.000 claims 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000007710 freezing Methods 0.000 abstract description 4
- 230000008014 freezing Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 18
- 201000010099 disease Diseases 0.000 description 10
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000004033 plastic Substances 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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- Pipe Accessories (AREA)
Abstract
The utility model discloses a tunnel secondary lining electric heating heat preservation drainage device which comprises a drainage pipe groove with a semicircular section, wherein an end plug is arranged at the head end of the drainage pipe groove, an electric heating belt is arranged at the bottom of the drainage pipe groove and is buried in the groove wall and is close to the inner groove wall and integrated with the drainage pipe groove, the electric heating belt at the tail end of the drainage pipe groove is exposed and is used for connecting a power supply end, a flame-retardant heat preservation and heat insulation heat preservation layer is bonded on the outer wall of the drainage pipe groove and the end plug, a secondary lining water leakage part is chiseled to a side wall along a secondary lining ring direction, and the drainage pipe groove is inlaid in the groove. Has the characteristics of effective freezing resistance and convenient installation.
Description
Technical Field
The utility model belongs to the technical field of tunnel secondary lining concrete leakage water disease remediation, and particularly relates to a tunnel secondary lining electric heating heat preservation drainage device.
Background
In recent years, the construction of a second lining of a tunnel is limited by design, construction technology, tooling, construction technology and management, a certain number of tunnel waterproof plates are damaged, and the second lining concrete has the defects of cracks, void, incompact concrete at construction joints and the like. The surrounding rock around the tunnel is continuously drained along the drainage system behind the two liners throughout the year. In winter, if the water in the surrounding rock cracks is not large, the drainage system behind the two liners is frozen and blocked, the water in the surrounding rock cracks continuously flows out of the water source, the holes (the holes or the hollows on the back of the waterproof board and the hollow parts of the two liners) behind the two liners near the water source are gradually filled, the water continuously gathered in the large-cavity part cannot be frozen, and when a certain pressure is reached, the water suddenly flows out from the construction joints, cracks and the like along the broken waterproof board, ice drops are formed on the surfaces of the two liners, so that the ground or the steel rail is frozen and other diseases are caused, and the driving safety is seriously endangered. The new sudden and uncertain water leakage points are shown in the water leakage points of the tunnels every year except the water leakage points in the last year, so that the rush repair personnel can not take the materials. At present, tunnel leakage water diseases in severe cold areas cannot occur in spring, summer and autumn, because the drainage system behind the second lining is smooth, surrounding rock crevice water is drained timely along the drainage channel. The drainage system is frozen and blocked in winter, and the water source of surrounding rock fissure water is not frozen, and continuously flows and gathers everywhere in the cavity behind the secondary lining until flowing out from the weak part cracks of the secondary lining, the broken waterproof board of the construction joint and the like, so that diseases are formed.
The leakage water disease usually adopts measures such as grouting blocking, sinking and pipe burying drainage. However, the common pipeline is buried in the chiseled groove aiming at freezing of the tunnel leakage water in severe cold areas, and even if the heat insulation layer is arranged, the ice drop hanging of the leakage water cannot be avoided. By adopting the blocking method, any blocking material in the tunnel at the temperature of minus 20-30 ℃ does not work, if grouting is carried out at the position in summer, the drainage system is blocked by more grouting, the grouting is less and the blocking effect is poor, even if the grouting is blocked, ice drops are formed by leakage from other positions in winter in the next year, and especially the ice drops above a line seriously threaten the operation safety of a train. At present, conventional tunnel leakage water treatment measures in severe cold areas are ineffective, most of tunnel leakage water treatment measures are reinforced by steel corrugated plates, drainage grooves or drainage pipes are formed in the back of each corrugated plate, electric heating strips are arranged in the drainage grooves or the drainage pipes, electric tracing needs to penetrate into pipelines at construction sites, and the problems of low efficiency, overhigh cost and the like exist. In addition, the method has the advantages that the electric heating belt is always soaked in water, is corroded by water flow scouring for a long time, is easy to damage and leak electricity, and reduces the service life of the electric heating belt.
Disclosure of utility model
In order to effectively solve the problem that the conventional treatment method for tunnel leakage water diseases in winter in the severe cold region is ineffective, and the train operation safety is endangered due to the fact that ice drops are formed in the tunnel, if the measures of the steel corrugated plates are adopted, the cost is too high, and the utility model provides the tunnel two-lining electric heating heat preservation drainage device.
The utility model adopts the technical scheme that the tunnel secondary lining electric heating heat preservation drainage device comprises a drainage pipe groove with a semicircular section, wherein an end plug is arranged at the head end of the drainage pipe groove, an electric heating belt is arranged at the bottom of the drainage pipe groove and is buried in the groove wall and close to the inner groove wall and integrated with the drainage pipe groove, the electric heating belt at the tail end of the drainage pipe groove is exposed and used for connecting a power supply end, a flame-retardant heat preservation and heat insulation heat preservation layer is bonded on the outer wall of the drainage pipe groove and the end plug, a water leakage part of the secondary lining is chiseled to a side wall along the secondary lining ring direction, and the drainage pipe groove is embedded in a groove.
Further, the drain pipe groove adopts a sectional pipe joint for lengthening, a socket buckle type connection mode is adopted for the drain pipe groove between pipe joints, a special waterproof sealant is arranged at the joint, the end head of the electric heating belt extends out of the bottom of the end head of the drain pipe groove, a special two-way junction box is adopted for lengthening, and a wire connecting groove is arranged on the pipe wall at the joint.
Further, the pipe joint comprises a standard joint and an adjusting joint.
Further, the drain pipe groove is made of silicon rubber, epoxy resin, glass fiber or polytetrafluoroethylene.
Further, the pipe wall pipe material of the drain pipe groove is the same as the material of the outer skin of the electric heating belt.
Further, the drain pipe groove is replaced with a drain pipe.
Further, the electric heating belt is spirally wound and arranged in the inner pipe wall of the drainage circular pipe.
Compared with the prior art, the utility model has the following advantages:
1. The design is ingenious and the manufacture is simple. At present, a mode of arranging an electric tracing band in a drainage channel by lining a steel corrugated plate sleeve and reserving the drainage channel is widely used for tunnel leakage water diseases in severe cold areas. Traditional water drainage tank sets up the process loaded down with trivial details, still needs special fixed electric heat area. The utility model integrates the electric heating belt with the drain pipe groove or the drain round pipe, has simple manufacturing process in a factory, can be tailored according to the requirements of the size and the electric heating temperature, and can also be produced in a centralized way according to standard sections and adjusting sections.
2. The construction and the installation are convenient and quick. The utility model adopts the conventional flexible, flame-retardant, heat-resistant, cold-resistant and oxidation-resistant pipe and the factory processing integration of the electrothermal belt with the external heat-preserving layer, has light weight and easy bending, and is the same as the conventional channeling drainage construction method. If the standard joint and the adjusting joint are used for construction in a lengthening mode, the socket and spigot buckle type interface is arranged, and the socket and spigot joint type interface can be used after glue is coated, and can be used for construction and lengthening. Compared with the prior art, the method has the advantages that the construction is more convenient and faster when the steel corrugated plate sleeve lining is arranged for drainage of the sinking buried pipe.
3. The construction cost is low. The electric heating belt, the drainage pipe groove or the drainage round pipe and the heat preservation are integrated, the construction method is the same as that of the common sinking pipe burying drainage construction method, the heat preservation is not needed to be made during construction, the U-shaped clamping chemical anchor bolts are adopted for fixing, the corrugated plate bushing is not needed to be adopted for fixing and the anti-freezing measures are not needed to be arranged, and the construction cost can be greatly reduced.
4. The maintenance is convenient. The device of the utility model is used for constructing the groove on the surface of the secondary lining concrete only, and embedding the groove in the groove or laying the secondary lining surface. Once damaged, the construction is simple and convenient to dismantle and replace, and the maintenance cost is low.
Drawings
FIG. 1 is a front view of a drain pipe trough of the present utility model;
FIG. 2 is a top view of a drain pipe trough of the present utility model;
FIG. 3 is a front view of a standard segment of a drain pipe trough of the present utility model;
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
FIG. 5 is a sectional view taken along B-B in FIG. 3;
fig. 6 is a sectional view taken along the direction C-C in fig. 3.
In the figure: 1-drain pipe groove, 2-electric heating belt, 3-heat preservation, 4-double-wall buckle bell and spigot joint, 5-single-wall buckle socket joint, 6-bell and spigot heat preservation joint, 7-socket heat preservation joint and 8-end shutoff.
Detailed Description
In order to better understand the purpose, structure and function of the present utility model, the following describes the tunnel two-lining electric heating heat preservation drainage device in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a tunnel secondary lining electric heat insulation drainage device comprises a semicircular drainage pipe groove 1, an electric heating belt 2 and an insulation layer 3, wherein an end plug 8 is arranged at the head end part of the drainage pipe groove 1 to plug and manufacture the insulation layer 3, a water receiving funnel can be connected with the head end part of the drainage pipe groove 1, the electric heating belt 2 is arranged at the bottom of the drainage pipe groove 1, buried in the groove wall and close to the inner groove wall to be integrated with the drainage pipe groove 1, the outer wall of the drainage pipe groove 1 is provided with the flame-retardant insulation layer 3, and the electric heating belt 2 at the tail end part of the drainage pipe groove 1 is exposed to be used for connecting a power supply end. The water leakage position of the second lining is chiseled to the side wall along the circumferential direction of the second lining, and the drain pipe groove 1 is embedded in the groove.
The electric heating heat-preserving drainage device for the second lining of the tunnel is applied to the treatment of concrete leakage water diseases of the second lining of the tunnel in all severe cold areas, has better treatment of fixed leakage water parts in winter and emergency repair effect of sudden leakage water diseases, has the design which accords with objective reality, can realize manage special use, and ensures that the leakage water is drained by connecting an electric heating belt 2 with a power and heating drainage pipeline of a temperature control system after the drainage device is embedded. The drain pipe groove 1 is externally connected with a power supply and a temperature control system, and the technology is the same as the conventional electric tracing band external power supply mode.
The drain pipe groove 1 is divided into several types according to the inner diameter, and the pipe is made of flexible, flame-retardant, heat-resistant, cold-resistant and oxidation-resistant materials (such as silicone rubber, epoxy resin, glass fiber or polytetrafluoroethylene). The key link of the drainage device is that in the processing and manufacturing process in a factory, the electric heating belt 2 and the drainage pipe groove 1 are required to be integrated, the electric heating belt 2 is coated on the inner surface of the drainage pipe groove 1, the power and the types of the electric heating belt 2 are required to be determined according to the environmental temperature in a tunnel, a layer of heat preservation layer 3 adhered outside the drainage pipe groove 1 is integrated with the drainage pipe groove 1, and the heat preservation layer 3 has flame retardance, flexibility and certain compression resistance and tensile strength.
The drain pipe groove 1 can be sized and processed into a whole according to the requirements of customers, so that the diameter and the length are matched with the actual requirements of the site, the problems of poor contact, water leakage and the like at the joint with small probability can be avoided, and the joint cost is reduced.
The drain pipe groove 1 can be divided into several types with different diameters according to the leakage water flow at the disease position, and the length can be in the form of a socket type connection extension plus an adjusting joint which is customized or sized in advance. As shown in FIG. 3-FIG. 6, the drain pipe groove 1 adopts a standard joint and adjusting joint form, the standard joint can be 6m long, and the adjusting joint length is 4 m-1 m long. The standard knot and the adjusting knot start end and the tail end set up the junction piping chute that the structure is the same, and junction piping chute adopts socket joint buckle formula to connect, in this embodiment, standard knot both ends set up double-walled buckle socket joint 4 and single-walled buckle socket joint 5 respectively in drain pipe chute 1 tip, and heat preservation 3 tip sets up socket joint heat preservation joint 6 and socket heat preservation joint 7. In order to prevent the joint from leaking, a layer of soft waterproof sealant is coated before the joint is inserted, an electric heating belt joint is reserved on the outer side of the joint of the drain pipe groove 1, and the electric heating belt 2 is lengthened by adopting a special two-way junction box. The tail end electric heating belt 2 is connected with the power connector by adopting a conventional electric heating belt male-female connector, and the connector is provided with a heat shrinkage tube for sealing treatment. Each pipeline is connected with the drain pipe groove 1 to the side wall by arranging standard joints and adjusting joints, and water leakage is led into the side ditch. The drain pipe groove 1 is convenient and quick to extend, good in heat preservation and drainage effect and controllable in cost.
In the actual installation process, the positions and the sizes of the cutting chisels are marked from the water leakage points of the two liners, the boundary is firstly cut along the surfaces of the two liners, then the chisels are chiseled in the circumferential direction, the chisels are chiseled until reaching the cable groove of the side wall ditch, and the size of the chisels meets the requirement that the drainage device is embedded in the cable groove. The head end of the drain pipe groove 1 is aligned with the water leakage point from the water leakage point to hold water leakage, the drain pipe groove 1 is laid along the groove, a U-shaped clamp chemical anchor bolt is fixed, the joint of the drain pipe groove 1 is connected, a single-wall buckle socket joint 5 is inserted into a double-wall buckle socket joint 4 from the lower part, meanwhile, the socket heat-insulating layer joint 6 and the socket heat-insulating layer joint 7 are tightly butted, then the wires of the electric heating belt 2 are connected by adopting a special two-way junction box, heat-insulating measures are taken, finally, the drain pipe groove 1 is led to the top surface of a cable groove of a side wall water ditch, the water leakage is led to the drain ditch by adopting a common pipe groove, and an electric heating temperature control system and a power supply are connected after the drain pipe groove 1 is installed and fixed.
In an alternative embodiment, the drain pipe groove 1 may be replaced by a drain pipe, and the electric heating belt 2 may instead be arranged in the inner pipe wall of the drain pipe in a spiral wound form.
According to the utility model, the semicircular or circular flame-retardant plastic pipes with different diameters are adopted, the electric heating belt 2 and the pipes are integrated when the pipes are processed, the electric heating belt 2 is arranged in the pipe wall and is close to the inner wall of the pipe groove, the semicircular pipes are used for arranging the electric heating belt 2 in the lowest inner pipe wall in parallel, the circular pipes can be used for arranging the electric heating belt in the inner pipe wall in a linear manner or in a spiral winding manner, and the flame-retardant heat-insulating layer 3 is arranged outside the pipe wall, so that the pipe wall has the characteristics of effective freezing resistance and convenience in installation.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. The utility model provides a tunnel second lining electric heat preservation drainage device, a serial communication port, including the cross-section for semicircular drainage tube groove (1), the head end of drainage tube groove (1) is equipped with end shutoff (8), the bottom of drainage tube groove (1) is arranged electric heat area (2), electric heat area (2) are buried in the cell wall and are close to interior cell wall and fuse as an organic wholely with drainage tube groove (1), electric heat area of drainage tube groove (1) tail end exposes and is used for connecting the power end, the outer wall bonding of drainage tube groove (1) and end shutoff (8) has fire-retardant heat preservation adiabatic heat preservation (3), two lining percolating water departments are along two bushing hoop gouges to side wall departments, drainage tube groove (1) inlay in the fluting.
2. The tunnel secondary lining electric heating heat preservation drainage device according to claim 1 is characterized in that the drainage pipe groove (1) is lengthened by adopting a segmented pipe joint, the drainage pipe groove (1) between the pipe joints adopts a socket buckle type connection mode, a special waterproof sealant is arranged at an interface, an electric heating belt end extends out of the bottom of the end of the drainage pipe groove (1), a special two-way junction box is adopted for lengthening, and a wiring groove is arranged at the pipe wall of the joint.
3. The tunnel two-lining electric heating and heat preservation drainage device according to claim 2, wherein the pipe joint comprises a standard joint and an adjusting joint.
4. The tunnel two-lining electric heating heat preservation and drainage device according to claim 1 is characterized in that the drainage pipe groove (1) is made of silicon rubber, epoxy resin, glass fiber or polytetrafluoroethylene.
5. The tunnel two-lining electric heating heat preservation and drainage device according to claim 4 is characterized in that the pipe wall pipe material of the drainage pipe groove (1) is the same as the material of the outer skin of the electric heating belt (2).
6. The tunnel two-lining electric heating and heat preservation drainage device according to any one of claims 1 to 5, wherein the drainage pipe groove (1) is replaced by a drainage circular pipe.
7. The tunnel two-lining electric heating and heat preservation drainage device according to claim 6 is characterized in that the electric heating belt (2) is changed into a spiral winding arrangement in the inner pipe wall of the drainage circular pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420275587.6U CN221609998U (en) | 2024-02-05 | 2024-02-05 | Electric heating, heat-preserving and drainage device for tunnel two liners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420275587.6U CN221609998U (en) | 2024-02-05 | 2024-02-05 | Electric heating, heat-preserving and drainage device for tunnel two liners |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221609998U true CN221609998U (en) | 2024-08-27 |
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ID=92428463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420275587.6U Active CN221609998U (en) | 2024-02-05 | 2024-02-05 | Electric heating, heat-preserving and drainage device for tunnel two liners |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221609998U (en) |
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- 2024-02-05 CN CN202420275587.6U patent/CN221609998U/en active Active
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