CN219910793U - Waterproof construction of rich water tunnel construction seam - Google Patents
Waterproof construction of rich water tunnel construction seam Download PDFInfo
- Publication number
- CN219910793U CN219910793U CN202322079769.4U CN202322079769U CN219910793U CN 219910793 U CN219910793 U CN 219910793U CN 202322079769 U CN202322079769 U CN 202322079769U CN 219910793 U CN219910793 U CN 219910793U
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- China
- Prior art keywords
- waterproof
- lining
- water stop
- construction joint
- construction
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000010276 construction Methods 0.000 title claims abstract description 55
- 238000007493 shaping process Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000000565 sealant Substances 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 238000004873 anchoring Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 239000000123 paper Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 2
- 239000002655 kraft paper Substances 0.000 claims description 2
- 230000008595 infiltration Effects 0.000 abstract description 7
- 238000001764 infiltration Methods 0.000 abstract description 7
- 238000005266 casting Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004587 polysulfide sealant Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model belongs to the technical field of building waterproof construction, and in particular relates to a waterproof structure for a construction joint of a water-rich tunnel, which comprises the following components: the waterproof board is paved along the inner wall of the primary lining of the tunnel; the flexible lining is attached to the inner wall of the waterproof board, and a plurality of rivets distributed in an array sequentially penetrate through the flexible lining and the waterproof board and then are fixed on the primary lining; the external sticking water stop is arranged on the inner wall of the flexible lining, and two sides of the external sticking water stop extend to the pre-pouring section and the post-pouring section of the secondary lining respectively; the middle buried water stop is positioned in the middle of the construction joint corresponding to the secondary lining, and the two sides of the middle buried water stop are respectively embedded into the pre-pouring section and the post-pouring section of the secondary lining. Waterproof board and construction joint combine in order to prevent that rich water tunnel from construction joint department infiltration, and waterproof board can reduce the infiltration of infiltration down to the possibility that secondary lining was permeated, set up outer subsides waterstop and well buries the waterstop in the construction joint to this leakproofness that improves the construction joint, thereby further assurance can not appear leaking in construction joint department.
Description
Technical Field
The utility model belongs to the technical field of tunnel waterproof construction, and particularly relates to a waterproof structure for a construction joint of a water-rich tunnel.
Background
When the tunnel construction is carried out, the phenomenon of water leakage easily appears in the tunnel construction seam, especially to the rich water tunnel of sandy shale, current tunnel lining waterproof construction only seals the construction seam, when the infiltration volume of tunnel is great, because the tunnel general life is longer, the tunnel construction seam receives the effect of water pressure for a long time, only seals the waterproof measure to the construction seam and is weaker, the phenomenon of water leakage easily appears.
Accordingly, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a waterproof structure for a construction joint of a water-rich tunnel.
In order to achieve the above object, the present utility model provides the following technical solutions:
a water-rich tunnel construction joint waterproof construction, comprising:
the waterproof board is paved along the inner wall of the primary lining of the tunnel;
the flexible lining is attached to the inner wall of the waterproof board, and a plurality of rivets distributed in an array sequentially penetrate through the flexible lining and the waterproof board and then are fixed on the primary lining;
the external sticking water stop is arranged on the inner wall of the flexible lining, and two sides of the external sticking water stop extend to the pre-pouring section and the post-pouring section of the secondary lining respectively;
the middle buried water stop is positioned in the middle of the construction joint corresponding to the secondary lining, and the two sides of the middle buried water stop are respectively embedded into the pre-pouring section and the post-pouring section of the secondary lining.
Preferably, two adjacent waterproof boards form a splicing seam through lap joint, and the splicing seam of the waterproof boards is staggered with the construction seam.
Preferably, welding seams are arranged on two sides of the lap joint parts of two adjacent waterproof boards so as to form an inflation inspection cavity.
Preferably, the construction joint is filled with a caulking material, and the caulking material is a polyethylene foam plastic plate.
Preferably, the side of the construction joint far away from the primary lining is filled with sealant, and kraft liner isolation paper is arranged between the sealant and the polyethylene foam plastic plate.
Preferably, anchoring pieces which are cast in the secondary lining are arranged on two sides of the middle buried water stop;
the anchor comprises:
the shaping ribs are arch parts matched with the inner wall of the tunnel;
the locating ribs are multiple, the locating ribs are uniformly distributed along the length direction of the shaping rib, the locating ribs penetrate through the edge of the buried water stop, and the edge of the buried water stop is provided with perforations corresponding to the locating ribs.
Preferably, the middle part of the externally attached water stop is provided with a water-swelling adhesive tape positioned in the construction joint.
The beneficial effects are that: waterproof board and construction joint combine in order to prevent that rich water tunnel from construction joint department infiltration, and waterproof board can reduce the infiltration of infiltration down to the possibility that secondary lining was permeated, set up outer subsides waterstop and well buries the waterstop in the construction joint to this leakproofness that improves the construction joint, thereby further assurance can not appear leaking in construction joint department.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. Wherein:
FIG. 1 is a schematic view of a waterproof structure according to an embodiment of the present utility model;
FIG. 2 is a schematic illustration of a flashing overlap in accordance with an embodiment of the present utility model;
FIG. 3 is a schematic view of a positioning rib according to an embodiment of the present utility model.
In the figure: 1. lining for the first time; 2. a waterproof board; 3. a flexible liner; 4. firstly, casting a section; 5. post-pouring section; 6. positioning ribs; 7. externally attaching a water stop belt; 8. a caulking material; 9. a water-swellable adhesive tape; 10. a middle buried water stop; 11. shaping ribs; 12. sealing glue; 13. welding seams; 14. the cavity is inspected.
Detailed Description
The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.
In the description of the present utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present utility model and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.
The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
As shown in fig. 1-3, a waterproof structure for a construction joint of a water-rich tunnel comprises a waterproof board 2, a flexible lining 3, an externally attached water stop 7 and a buried water stop 10, wherein the waterproof structure is positioned between a primary lining 1 and a secondary lining, can prevent lower water seepage from extending downwards into the tunnel, the waterproof board 2 is paved along the inner wall of the tunnel, the waterproof board 2 is tightly attached to the inner wall of the primary lining 1 of the tunnel, the waterproof board 2 can reduce the possibility of lower water seepage from penetrating into the secondary lining, the flexible lining 3 is attached to the inner wall of the waterproof board 2, the flexible lining 3 can be geotextile, can further provide waterproof performance, the waterproof board 2 is fixed on the primary lining 1 in a rivet mode, a plurality of rivets distributed in an array form sequentially penetrate through the flexible lining 3 and the waterproof board 2 and then are fixed on the primary lining 1, the externally attached water stop 7 is arranged on the inner wall of the flexible lining 3, two sides of the waterproof board extend towards a pre-pouring section 4 and a post-pouring section 5 of the secondary lining respectively and are used for shielding the construction joint, so that the sealing is ensured, and the lower water seepage is prevented from extending into the construction joint; the middle buried water stop 10 is positioned in the middle of the construction joint corresponding to the secondary lining, the two sides of the middle buried water stop are respectively embedded into the pre-pouring section 4 and the post-pouring section 5 of the secondary lining, the middle buried water stop 10 is integrally formed with the secondary lining in a pouring mode, and meanwhile, a sealing bin is formed by utilizing the middle buried water stop 10, so that water seepage is possible to leak from the construction joint in a further mode.
In an alternative embodiment, two adjacent waterproof boards 2 form a splice seam through lap joint, the waterproof boards 2 are tightly attached to the inner wall of the lining 1 once through a heat setting mode, the width of each waterproof board 2 is 3-6 m, the length of each waterproof board 2 can be matched with the circumferential length of the inner wall of the tunnel, the inner wall of the tunnel can be fully paved in the circumferential direction through splicing, and in order to further ensure the waterproof effect, the splice seam and the construction seam of each waterproof board 2 are staggered.
In this embodiment, the waterproof boards 2 are bonded by hot melting with a special welding device, and are welded with hot melting gaskets by a manual special welding device, and are laid from the arch parts to the side walls on two sides, the lower waterproof board 2 should press the upper waterproof board 2, the tightness should be moderate and the allowance should be left, and the whole area of the waterproof board 2 can be ensured to be propped against the base surface. Then, the arch is laid down from the arch to two sides, and the arch is welded with the hot-melt gasket by a welding device while laying. The lap joint of the waterproof board 2 adopts a hot-melt climbing welder, and the lap joint width is not less than 10cm; when in welding, the lower waterproof plate 2 must press the upper waterproof plate 2, dust on the surface of the waterproof plate 2 is removed before welding, and the effective width of each welding seam 13 is not less than 1cm.
In this embodiment, weld seams 13 are provided on both sides of the overlapping portions of two adjacent waterproof boards 2 to form an inflation inspection chamber 14 for an inflation detector to detect the welding quality, one end of the inspection chamber 14 is plugged, and then the inflation detector is used to inflate and pressurize from the other end until the pressure reaches 0.25MPa, and the pressure is maintained for not less than 15 minutes, allowing the pressure to drop by 10%. If the requirement is met, the complete bonding is indicated, otherwise, the leakage part is found out by using detection liquid (such as soapy water), and the detection is carried out again after the welding repair by using a manual hot-melting device until the complete bonding is achieved.
In an alternative embodiment, the construction joint is filled with the caulking material 8, the caulking material 8 is a polyethylene foam plastic plate, and the caulking material 8 is prevented from being in a corresponding position during construction of the post-cast section 5.
In the embodiment, one side of the construction joint far away from the primary lining 1 is filled with sealant 12, and a cowhide isolating paper is arranged between the sealant 12 and the polyethylene foam plastic plate to form a waterproof structure with waterproof plates 2+embedded steel edge rubber water stop+full-ring externally-attached rubber water stop and double-component polysulfide sealant 12 caulking combination.
In an alternative embodiment, in the prior art, since the construction joint is generally formed by casting of the front and rear sections, in the casting process, the embedded water stop 10 is a steel edge rubber water stop, and anchoring members cast in the secondary lining are arranged on two sides of the embedded water stop 10, so that on one hand, deformation of the embedded water stop 10 in the casting process is avoided through supporting, on the other hand, the anchoring strength of the embedded water stop 10 can be increased, and the stability of the installation structure of the embedded water stop 10 is improved.
The anchor assembly comprises a shaping rib 11 and a positioning rib 6, wherein the shaping rib 11 is formed by bending steel bars, the shaping rib 11 is an arch part matched with the inner wall of a tunnel, the specific positioning rib 6 is positioned at the inner wall of the preset position of the middle buried water stop 10, so that the positioning rib can be fixed on a template or a steel reinforcement framework in the casting process, the middle buried water stop 10 is supported, the mounting accuracy of the middle buried water stop 10 is guaranteed, the positioning rib 6 is welded on the shaping rib 11 and extends outwards along the radial direction of the tunnel, the positioning ribs 6 are multiple, the positioning ribs 6 are uniformly distributed along the length direction of the shaping rib 11, the positioning ribs 6 penetrate through the edge of the middle buried water stop 10, and the edge of the middle buried water stop 10 is provided with perforations corresponding to the positioning ribs 6, so that the middle buried water stop 10 is fixed, and meanwhile, the positioning ribs 6 can improve the rivet capability after casting.
In this embodiment, the positioning rib 6 is sleeved with a rubber sleeve, and the rubber sleeve and the positioning rib 6 are in interference fit, so that the rubber sleeve can have enough friction force to be fixed on the positioning rib 6, and the rubber sleeve is extruded downwards to limit the embedded water stop 10 on the shaping rib 11.
Furthermore, the middle part of the externally attached water stop 7 is provided with a water-swelling adhesive tape 9 positioned in the construction joint.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the appended claims.
Claims (5)
1. Waterproof construction of rich water tunnel construction seam, its characterized in that includes:
the waterproof board is paved along the inner wall of the primary lining of the tunnel;
the flexible lining is attached to the inner wall of the waterproof board, and a plurality of rivets distributed in an array sequentially penetrate through the flexible lining and the waterproof board and then are fixed on the primary lining;
the external sticking water stop is arranged on the inner wall of the flexible lining, and two sides of the external sticking water stop extend to the pre-pouring section and the post-pouring section of the secondary lining respectively;
the middle buried water stop is positioned in the middle of the construction joint corresponding to the secondary lining, and the two sides of the middle buried water stop are respectively embedded into the pre-pouring section and the post-pouring section of the secondary lining; the two adjacent waterproof boards are overlapped to form a spliced seam, and the spliced seam of the waterproof boards is staggered with the construction seam; welding seams are arranged on two sides of the lap joint parts of two adjacent waterproof boards so as to form an inflation inspection cavity.
2. The waterproof construction joint structure of the water-rich tunnel according to claim 1, wherein the construction joint is filled with a caulking material, and the caulking material is a polyethylene foam plastic plate.
3. The waterproof structure of the construction joint of the water-rich tunnel according to claim 1, wherein a sealant is filled at one side of the construction joint far away from the primary lining, and kraft liner isolation paper is arranged between the sealant and the polyethylene foam plastic plate.
4. The waterproof structure of the construction joint of the water-rich tunnel according to claim 1, wherein anchoring pieces cast in the secondary lining are arranged on two sides of the buried water stop;
the anchor comprises:
the shaping ribs are arch parts matched with the inner wall of the tunnel;
the locating ribs are multiple, the locating ribs are uniformly distributed along the length direction of the shaping rib, the locating ribs penetrate through the edge of the buried water stop, and the edge of the buried water stop is provided with perforations corresponding to the locating ribs.
5. The waterproof structure of the construction joint of the water-rich tunnel according to claim 1, wherein the middle part of the externally attached water stop belt is provided with a water-swelling adhesive tape positioned inside the construction joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322079769.4U CN219910793U (en) | 2023-08-04 | 2023-08-04 | Waterproof construction of rich water tunnel construction seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322079769.4U CN219910793U (en) | 2023-08-04 | 2023-08-04 | Waterproof construction of rich water tunnel construction seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219910793U true CN219910793U (en) | 2023-10-27 |
Family
ID=88432544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322079769.4U Active CN219910793U (en) | 2023-08-04 | 2023-08-04 | Waterproof construction of rich water tunnel construction seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219910793U (en) |
-
2023
- 2023-08-04 CN CN202322079769.4U patent/CN219910793U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |