CN221218904U - Waterproof structure of new and old underground structure seam - Google Patents
Waterproof structure of new and old underground structure seam Download PDFInfo
- Publication number
- CN221218904U CN221218904U CN202322690092.8U CN202322690092U CN221218904U CN 221218904 U CN221218904 U CN 221218904U CN 202322690092 U CN202322690092 U CN 202322690092U CN 221218904 U CN221218904 U CN 221218904U
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- water
- receiving box
- waterproof
- seam
- water receiving
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 89
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 26
- 238000004078 waterproofing Methods 0.000 claims description 16
- 239000012528 membrane Substances 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 8
- 239000000565 sealant Substances 0.000 claims description 7
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000002425 crystallisation Methods 0.000 claims description 5
- 230000008025 crystallization Effects 0.000 claims description 5
- 239000008397 galvanized steel Substances 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims 3
- 230000002787 reinforcement Effects 0.000 claims 1
- 239000003292 glue Substances 0.000 abstract description 19
- 230000002265 prevention Effects 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 27
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 7
- 230000008961 swelling Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 239000011440 grout Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model provides a waterproof structure for joints of new and old underground structures, which comprises an existing structure, a new structure, a waterproof reinforcing layer, a water-stopping steel plate, water-swelling water-stopping glue and a water receiving box, wherein the waterproof reinforcing layer is arranged on the outer sides of the new structure and the existing structure, the water-stopping steel plate is arranged on the inner side of the waterproof reinforcing layer, the water-swelling water-stopping glue is arranged on a joint of the new structure and the existing structure, the water receiving box is arranged on the inner sides of joints of the new structure and the existing structure, and the water receiving box is communicated with a drainage ditch in a tunnel. The water-stopping steel plate and the water-swelling water-stopping glue are arranged at the joint seam position between the newly-built structure and the existing structure, so that effective water prevention is realized; meanwhile, underground water penetrating into the tunnel is orderly drained through the water receiving box, and new and old interfaces are effectively waterproof through anti-drainage combination.
Description
Technical Field
The utility model relates to the technical field of engineering construction, in particular to a waterproof structure for a seam of a new and old underground structure.
Background
Along with the development requirement of the underground space, a large number of newly built underground structures need to be connected with the existing underground structures, in particular to rail transit stations, usually an access port or a transfer passage interface is reserved, and later newly built projects are directly connected with the existing structures. However, the joint seam of the joint seam is difficult to be waterproof all the time when the new structure and the old structure are connected, and water leakage often occurs after the construction is finished; there is a need for a seam waterproof construction for new and old construction interfaces.
Disclosure of utility model
In view of the above, the present utility model provides a waterproof structure for joints of new and old underground structures to solve the technical problem that water seepage easily occurs at the joint between the new structure and the existing structure.
The utility model solves the technical problems by the following technical means: the utility model provides a waterproof structure for joints of new and old underground structures, which comprises an existing structure, a new structure, a waterproof reinforcing layer, a water-stopping steel plate, water-swelling water-stopping glue and a water receiving box, wherein the waterproof reinforcing layer is arranged on the outer sides of the joints of the new structure and the existing structure, the water-stopping steel plate is arranged on the inner side of the waterproof reinforcing layer, a ring is arranged along the circumferential direction of the joints, two ends of the water-stopping steel plate are respectively welded and connected with longitudinal steel bars of the new structure and the existing structure, the water-swelling water-stopping glue is arranged on the joints of the new structure and the existing structure, the water-swelling water-stopping glue is arranged on two layers, the water receiving box is arranged on the inner sides of the joints of the new structure and the existing structure, and the water receiving box is communicated with a drainage ditch in a tunnel.
Further, a cement-based crystallization coating is arranged at the section of the existing structure.
Further, a circle of grouting pipes and grouting guide pipes are circumferentially arranged along the newly-built structure and the existing structure, and the grouting pipes are communicated with the grouting guide pipes.
Further, the novel water receiving box comprises a groove, wherein the groove is arranged on the inner side of an interface joint of the existing structure and the newly-built structure, and the water receiving box is arranged in the groove.
Further, the connecting seam on the inner side of the groove is also provided with sealant, the two side plates of the water receiving box are respectively provided with mounting plates, the bottoms of the grooves on the two sides of the water receiving box are screwed, and the sealant is respectively arranged between the two side plates of the water receiving box and the two side walls of the groove.
Further, the lower end of the water receiving box is also provided with a steel plate pressing strip, and the two ends of the steel plate pressing strip after covering the groove are respectively fixed on the existing structure and the newly-built structure through chemical bolts.
Further, the outside of existing structure is provided with the fluting, the reinforcing bar exposes in the fluting, reinforcing bar and stagnant water steel sheet welded connection, the waterproofing membrane of existing structure with the waterproofing membrane overlap joint of newly-built structure is connected to set up a waterproofing membrane enhancement layer.
Further, the water-stopping steel plate is a galvanized steel plate with the thickness of 10mm, a 50 mm thick fine stone concrete protection layer is further arranged between the water-stopping steel plate and the waterproof reinforcing layer on the tunnel bottom plate, and a concrete cushion layer is further arranged below the waterproof reinforcing layer.
According to the technical scheme, the beneficial effects of the utility model are as follows: the utility model provides a seam waterproof structure of a new and old underground structure, which comprises an existing structure, a new structure, a waterproof reinforcing layer, a water stopping steel plate, water swelling water stopping glue and a water receiving box, wherein the waterproof reinforcing layer is arranged on the top surfaces of the new structure and the existing structure, the water stopping steel plate is arranged below the waterproof reinforcing layer, two ends of the water stopping steel plate are respectively welded and connected with longitudinal steel bars of the new structure and the existing structure, the water swelling water stopping glue is arranged on a connecting joint of the new structure and the existing structure, the water swelling water stopping glue is provided with two layers, the water receiving box is arranged at the bottoms of the new structure and the existing structure, an opening of the water receiving box faces the connecting joint, the water receiving box corresponds to the connecting joint, and the water receiving box is communicated with a drainage ditch. The water-stopping steel plate and the water-swelling water-stopping glue are arranged at the connecting joint position between the newly-built structure and the existing structure, so that effective water prevention is realized; meanwhile, the waterproof box is arranged to further enhance the waterproof performance, so that the waterproof performance is effectively realized on the new and old interfaces.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is an elevation view of a newly built structure and existing structure interface design;
FIG. 2 is a partial cross-sectional view of the top plate and side wall of the A-position of FIG. 1;
FIG. 3 is a partial cross-sectional view of the base plate of FIG. 1 at position B;
FIG. 4 is a partial enlarged view of the position of the water receiving box;
Reference numerals:
1-newly built structure; 2-existing structure; 3-a waterproof reinforcing layer; 4-water stopping steel plates; 5-water swelling water stop glue; 6-a water receiving box; 7-grouting pipe; 61-grooves; 62-a sealant layer; 63-mounting plate; 64-screws; 65-sealing glue; 8-a concrete protective layer; 9-steel plate pressing strips.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
Referring to fig. 1-4, the utility model provides a waterproof structure for a joint of a new underground structure and an old underground structure, which comprises a waterproof reinforcing layer, a water stopping steel plate, water swelling water stopping glue and a water receiving box, wherein the waterproof reinforcing layer is arranged on the outer side of the joint of the new structure and the existing structure, the water stopping steel plate is arranged on the inner side of the waterproof reinforcing layer, two ends of the water stopping steel plate are respectively welded with longitudinal steel bars of the new structure and the existing structure, the water swelling water stopping glue is arranged on the joint of the new structure and the existing structure, the water swelling water stopping glue is provided with two layers, the water receiving box is arranged on the inner side of the joint of the new structure and the existing structure, and the water receiving box is communicated with a drainage ditch in a tunnel. The water-stopping steel plate and the water-swelling water-stopping glue are arranged at the connecting joint position between the newly-built structure and the existing structure, so that effective water prevention is realized; meanwhile, underground water penetrating into the tunnel is orderly drained through the water receiving box, and new and old interfaces are effectively waterproof through anti-drainage combination.
Further, a cement-based crystallization coating is arranged at the section of the existing structure. Through roughening interface section department to brushing one deck cement-based crystallization coating on the surface, making it fully contact with the grout, better bonding grout has increased the bulk strength of new old structure contact surface grout, reduces the leakage thick liquid and the dry shrinkage of grout, the effectual crack that appears in new old structure interface that has avoided, effectual waterproof.
Further, a circle of grouting pipes and grouting guide pipes are circumferentially arranged along the newly-built structure and the existing structure, and the grouting pipes are communicated with the grouting guide pipes. Grouting is carried out on the connecting joint by arranging a grouting pipe and a grouting guide pipe.
Further, the novel drainage box further comprises grooves, the grooves are arranged on two sides of the joint seam of the existing structure and the newly-built structure, and the drainage box is arranged in the grooves. The groove is reserved for installing the water receiving box when pouring is carried out, so that the water receiving box is more convenient and simple to install, and meanwhile, the water receiving box can be conveniently replaced.
Further, a sealing glue layer is further arranged on the joint seam of the bottom of the groove, mounting plates are respectively arranged on the two side plates of the water receiving box, the bottoms of the grooves on the two sides of the water receiving box are screwed, and sealing glue is arranged in the gap between the two side plates of the water receiving box and the side walls of the groove. And the bottom of the connecting joint is provided with sealant to further strengthen the waterproof effect. Through set up the mounting panel on the curb plate of water receiving box, be convenient for install water receiving box in the recess, through set up the sealant between the curb plate of water receiving box and the lateral wall of recess, prevent that liquid from flowing out from the seam crossing between water receiving box and the recess.
Further, the lower end of the water receiving box is also provided with a steel plate pressing strip, and the two ends of the steel plate pressing strip after covering the groove are respectively fixed on the existing structure and the newly-built structure through chemical bolts. The water receiving box can be protected by arranging the steel plate pressing strips to completely seal the water receiving box into the grooves, and meanwhile, liquid in the water receiving box is prevented from flowing out, so that the waterproof effect is further enhanced.
Further, the outside of existing structure is provided with the fluting, the reinforcing bar exposes in the fluting, reinforcing bar and stagnant water steel sheet welded connection, the waterproofing membrane of existing structure with the waterproofing membrane overlap joint of newly-built structure is connected to set up a waterproofing membrane enhancement layer. The waterproof steel plate is a galvanized steel plate with the thickness of 10 mm, a 50 mm thick fine stone concrete protection layer is further arranged between the waterproof steel plate and the waterproof reinforcing layer on the tunnel bottom plate, and a concrete cushion layer is further arranged below the waterproof reinforcing layer.
During construction, firstly breaking the primary support of the end wall of the existing structure, reserving the secondary lining of the end wall of the existing structure, stripping out the reinforcing steel bars of the existing structure, cutting and grooving along the outer side of the existing structure to expose the outer reinforcing steel bars of the existing structure, overlapping the waterproof coiled material of the existing structure with the waterproof coiled material of the new structure, arranging a waterproof coiled material reinforcing layer, inserting a galvanized steel plate with the thickness of 10 mm, straightening the reinforcing steel bars of the existing structure, connecting the outer reinforcing steel bars with the longitudinal reinforcing steel bars of the new structure, welding the two ends of the galvanized steel plate with the outer reinforcing steel bars of the existing structure and the longitudinal reinforcing steel bars of the new structure respectively, roughening at the joint sections, brushing a layer of cement-based crystallization coating on the surfaces, arranging water-swelling waterproof glue and grouting pipes at the joints, pouring the final concrete of the new structure, gathering the existing structure, grouting the joints through the pre-buried grouting pipes; reserving grooves on the inner sides of the newly built structure and the existing structure during pouring; and finally, installing a water receiving box on the grooves of the vault and the side wall, and grouting the newly built structure back close to the joint to ensure that the slotting is tightly filled.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (8)
1. The utility model provides a waterproof structure of new and old underground structure seam, includes existing structure and newly-built structure, its characterized in that: still include waterproof enhancement layer, stagnant water steel sheet, meet water inflation and stop water gluing and water receiving box, waterproof enhancement layer sets up in the outside of newly-built structure and existing structure, stagnant water steel sheet sets up in the inboard of waterproof enhancement layer, sets up a ring along seam hoop, the both ends of stagnant water steel sheet respectively with the outside longitudinal reinforcement welded connection of newly-built structure and existing structure, meet water inflation and stop water gluing setting on the interface seam of newly-built structure and existing structure, meet water inflation and stop water gluing and be provided with two-layer, water receiving box sets up the inboard at newly-built structure and existing structure seam crossing, water receiving box communicates with the escape canal in the tunnel.
2. The seam waterproofing structure for old and new underground structures according to claim 1, wherein: a cement-based crystallization coating is arranged on the section of the existing structure.
3. The seam waterproofing structure for old and new underground structures according to claim 2, wherein: and a circle of grouting pipes and grouting guide pipes are arranged along the annular direction of the newly-built structure and the existing structure, and the grouting pipes are communicated with the grouting guide pipes.
4. The seam waterproofing structure for old and new underground structures according to claim 3, wherein: the novel water receiving box comprises a water receiving box body, and is characterized by further comprising grooves which are arranged on two sides of an interface joint of the existing structure and the newly-built structure, and the water receiving box body is arranged in the grooves.
5. The seam waterproofing structure for old and new underground structures according to claim 4, wherein: the joint seam of the bottom of the groove is also provided with a sealant layer, the two side plates of the water receiving box are respectively provided with mounting plates, the bottoms of the grooves on the two sides of the water receiving box are screwed, and the sealant is arranged in a gap between the two side plates of the water receiving box and the side walls of the groove.
6. The seam waterproofing structure for old and new underground structures according to claim 5, wherein: the lower end of the water receiving box is also provided with a steel plate pressing strip, and the two ends of the steel plate pressing strip after covering the groove are respectively fixed on the existing structure and the newly-built structure through chemical bolts.
7. The seam waterproofing structure for old and new underground structures according to claim 1, wherein: the outside of existing structure is provided with the fluting, the reinforcing bar exposes in the fluting, reinforcing bar and stagnant water steel sheet welded connection, the waterproofing membrane of existing structure with the waterproofing membrane overlap joint of newly-built structure is connected to set up a waterproofing membrane enhancement layer.
8. The seam waterproofing structure for old and new underground structures according to claim 1, wherein: the waterproof steel plate is a galvanized steel plate with the thickness of 10 mm, a 50 mm thick fine stone concrete protection layer is further arranged between the waterproof steel plate and the waterproof reinforcing layer on the tunnel bottom plate, and a concrete cushion layer is further arranged below the waterproof reinforcing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322690092.8U CN221218904U (en) | 2023-10-08 | 2023-10-08 | Waterproof structure of new and old underground structure seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322690092.8U CN221218904U (en) | 2023-10-08 | 2023-10-08 | Waterproof structure of new and old underground structure seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221218904U true CN221218904U (en) | 2024-06-25 |
Family
ID=91548235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322690092.8U Active CN221218904U (en) | 2023-10-08 | 2023-10-08 | Waterproof structure of new and old underground structure seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221218904U (en) |
-
2023
- 2023-10-08 CN CN202322690092.8U patent/CN221218904U/en active Active
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| GR01 | Patent grant |