CN211006775U - Water stop structure for post-cast strip of underground chamber bottom plate - Google Patents
Water stop structure for post-cast strip of underground chamber bottom plate Download PDFInfo
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- CN211006775U CN211006775U CN201921750815.6U CN201921750815U CN211006775U CN 211006775 U CN211006775 U CN 211006775U CN 201921750815 U CN201921750815 U CN 201921750815U CN 211006775 U CN211006775 U CN 211006775U
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Abstract
The utility model provides a basement bottom plate post-cast strip stagnant water structure belongs to construction technical field. Including bed course, waterproof roll material layer, waterproof layer, water-resistant board, water bottom plate earlier and post-cast strip earlier and the both sides seam middle part between watering bottom plate earlier and the post-cast strip is provided with the stagnant water steel sheet of perpendicular to seam, is close to the seam and waters earlier and offers two mounting grooves that lie in both sides about the stagnant water steel sheet respectively on the lateral wall of bottom plate earlier, be the acute angle between mounting groove and the horizontal plane, water inflation stagnant water adhesive tape has been buried underground in the mounting groove. The utility model has the advantages of can improve seam crossing stagnant water effect and new and old concrete's bond strength.
Description
Technical Field
The utility model belongs to the technical field of the construction, a basement bottom plate post-cast strip stagnant water structure is related to.
Background
The post-cast strip is a temporary construction joint reserved at the corresponding position of a foundation slab, a wall and a beam according to the design or construction specification requirement in order to prevent a possibly generated harmful crack of a cast-in-place reinforced concrete structure due to nonuniform self shrinkage or nonuniform settlement in the building construction.
Because the basement flood peak is generally higher, groundwater easily passes waterproofing membrane, permeates into indoor from the gap between the bottom plate of post-cast strip and cast-in-place part, and water-proof effects is poor, and the gap department bonding strength between new and old concrete is lower, leads to the junction to be difficult to reach better sealed stagnant water effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem that prior art exists, provide a basement bottom plate post-cast strip stagnant water structure, the utility model aims to solve the technical problem how improve the stagnant water effect of seam crossing.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a basement bottom plate post-cast strip stagnant water structure, includes bed course, waterproof roll material layer, waterproof layer, water-resistant board, waters the bottom plate earlier and waters the area after, its characterized in that, water earlier the bottom plate and water earlier the both sides seam middle part between the area after and be provided with the stagnant water steel sheet of perpendicular to seam, set up two mounting grooves that lie in both sides about the stagnant water steel sheet respectively on the lateral wall of watering the bottom plate earlier of being close to the seam, be the acute angle between mounting groove and the horizontal plane, water-swelling stagnant water adhesive tape has been buried underground in the mounting groove.
In order to relieve the influence of the super-long concrete structure on the post-cast strip, a water-swelling water-stopping adhesive tape is added at the position of the post-cast strip where the water passage is extended, so that the function of intercepting the water is realized. This meet water inflation stagnant water adhesive tape and installation meet water inflation stagnant water adhesive tape's mounting groove has following high-quality characteristic:
the water stopping effect is good, the double-sealing water stopping mechanism of elastic water stopping of rubber and volume expansion water stopping of the rubber after water contact is realized, and the water pressure of 1.5Kpa can be resisted to the maximum extent;
the durability is strong, the quality change rate is low, the loss of expansion elements can not be caused in the long-term service period, and the service life is more than 100 years below 20 ℃;
construction is close-fitting, and the concrete surface can be firmly stuck no matter whether the base surface is wet, smooth or rough;
the environment-friendly type water-based paint has the advantages of environmental protection, good chemical resistance, resistance to chemical articles such as hydrochloric acid, saline water, sodium carbonate, potassium hydroxide and the like, contact with drinking water, safety, no toxicity and environment-friendly type products;
the performance-price ratio is good, and the performance is superior to that of the traditional joint waterproof material, such as a steel-edged rubber water stop belt or a water stop strip.
The water-swelling water-stopping adhesive tape is P-201 water-swelling water-stopping adhesive, and the extrusion section size is 10mm × 20 mm.
The mounting groove is 60 inclination and distributes on the lateral wall of pouring the bottom plate earlier, and the entering that new concrete can be smooth and easy, and the tamping of new concrete can not cause water-swelling stagnant water adhesive tape to break away from the mounting groove.
The existence of mounting groove can make new and old concrete imbed mutually, improves the bonding strength of new and old concrete, and two meeting water inflation stagnant water adhesive tape that lie in both sides about the stagnant water steel sheet can carry out twice to the infiltration water that pierces through before the stagnant water steel sheet and after piercing through the stagnant water steel sheet and seal, still have better stagnant water effect after cracking, spalling new and old concrete seam, avoid the construction risk.
In the post-pouring strip water stopping structure for the underground chamber bottom plate, the waterproof coiled material layer consists of two layers of waterproof coiled materials.
In the post-cast strip water stop structure for the floor of the underground chamber, the section area of the installation groove is more than three times that of the water-swelling water stop adhesive tape positioned in the installation groove.
Drawings
Fig. 1 is a sectional view of a local lower chamber floor post-cast strip water stop structure.
Fig. 2 is an enlarged view of a portion a in fig. 1.
In the figure, 1, a cushion layer; 2. a waterproof roll layer; 3. a waterproof protective layer; 4. a water-resistant plate; 5. firstly, pouring a bottom plate; 6. post-pouring a belt; 7. mounting grooves; 8. the water-swelling water-stopping adhesive tape is expanded when meeting water; 9. and (7) a water stop steel plate.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, including bed course 1, waterproof roll material layer 2, waterproof layer 3, water-resistant board 4, water bottom plate 5 earlier and post-cast strip 6 between the both sides seam middle part of watering bottom plate 5 earlier and post-cast strip 6 is provided with the stagnant water steel sheet 9 of perpendicular to seam, set up two mounting grooves 7 that lie in both sides about stagnant water steel sheet 9 respectively on the lateral wall of watering bottom plate 5 earlier that is close to the seam, be the acute angle between mounting groove 7 and the horizontal plane, bury water inflation stagnant water adhesive tape 8 in the mounting groove 7 underground.
In order to relieve the influence of the super-long concrete structure on the post-cast strip 6, a water-swelling water-stopping adhesive tape 8 is additionally arranged at the position of the post-cast strip 6 where the water passage is extended, so that the function of intercepting water is realized. This meet water inflation stagnant water adhesive tape 8 and installation groove 7 of installing meet water inflation stagnant water adhesive tape 8 have following high-quality characteristic:
the water stopping effect is good, the double-sealing water stopping mechanism of elastic water stopping of rubber and volume expansion water stopping of the rubber after water contact is realized, and the water pressure of 1.5Kpa can be resisted to the maximum extent;
the durability is strong, the quality change rate is low, the loss of expansion elements can not be caused in the long-term service period, and the service life is more than 100 years below 20 ℃;
construction is close-fitting, and the concrete surface can be firmly stuck no matter whether the base surface is wet, smooth or rough;
the environment-friendly type water-based paint has the advantages of environmental protection, good chemical resistance, resistance to chemical articles such as hydrochloric acid, saline water, sodium carbonate, potassium hydroxide and the like, contact with drinking water, safety, no toxicity and environment-friendly type products;
the performance-price ratio is good, and the performance is superior to that of the traditional joint waterproof material, such as a steel-edged rubber water stop belt or a water stop strip.
The water-swelling water-stopping adhesive tape 8 is P-201 water-swelling water-stopping adhesive, and the extrusion section size is 10mm × 20 mm.
The existence of mounting groove 7 can make new and old concrete imbed mutually, improves the bonding strength of new and old concrete, and two meeting water inflation stagnant water adhesive tape 8 that lie in both sides about stagnant water steel sheet 9 can carry out twice to the infiltration water that pierces through before stagnant water steel sheet 9 and after piercing through stagnant water steel sheet 9 and seal, still have better stagnant water effect after splitting, spalling new and old concrete seam, avoid the construction risk.
The waterproof roll layer is composed of two layers of waterproof rolls. The section area of the mounting groove 7 is more than three times of the section area of the water-swelling water-stop rubber strip 8 positioned in the mounting groove.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (3)
1. The utility model provides a basement bottom plate post-cast strip stagnant water structure, includes bed course (1), waterproof coil material layer (2), water proof layer (3), water-resistant board (4), waters bottom plate (5) earlier and post-cast strip (6), its characterized in that, the both sides seam middle part of watering earlier between bottom plate (5) and post-cast strip (6) is provided with stagnant water steel sheet (9) of perpendicular to seam, sets up two mounting grooves (7) that lie in both sides about stagnant water steel sheet (9) respectively on the lateral wall of watering bottom plate (5) earlier that is close to the seam, be the acute angle between mounting groove (7) and the horizontal plane, water swelling stagnant water adhesive tape (8) are buried underground in mounting groove (7).
2. The structure of claim 1, wherein the layer of waterproofing membrane is composed of two layers of waterproofing membrane.
3. A structure of sealing up water in post-pouring strip of floor of underground chamber according to claim 1 or 2, characterized in that the cross-sectional area of the mounting groove (7) is more than three times of the cross-sectional area of the water-swelling sealing-up rubber strip (8) located therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921750815.6U CN211006775U (en) | 2019-10-17 | 2019-10-17 | Water stop structure for post-cast strip of underground chamber bottom plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921750815.6U CN211006775U (en) | 2019-10-17 | 2019-10-17 | Water stop structure for post-cast strip of underground chamber bottom plate |
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| Publication Number | Publication Date |
|---|---|
| CN211006775U true CN211006775U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921750815.6U Active CN211006775U (en) | 2019-10-17 | 2019-10-17 | Water stop structure for post-cast strip of underground chamber bottom plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718122A (en) * | 2022-03-16 | 2022-07-08 | 中国五冶集团有限公司 | Method for anti-seepage treatment of new and old structure underground corridor foundation connection construction joint |
-
2019
- 2019-10-17 CN CN201921750815.6U patent/CN211006775U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718122A (en) * | 2022-03-16 | 2022-07-08 | 中国五冶集团有限公司 | Method for anti-seepage treatment of new and old structure underground corridor foundation connection construction joint |
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