CN110158664B - Basement post-cast strip anti-seepage construction method - Google Patents
Basement post-cast strip anti-seepage construction method Download PDFInfo
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- CN110158664B CN110158664B CN201910393868.5A CN201910393868A CN110158664B CN 110158664 B CN110158664 B CN 110158664B CN 201910393868 A CN201910393868 A CN 201910393868A CN 110158664 B CN110158664 B CN 110158664B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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Abstract
The invention discloses a basement post-cast strip anti-seepage construction method, wherein a basement post-cast strip anti-seepage structure is used, the structure comprises a water absorption expansion layer, a water stop strip, a concrete cushion layer, a reinforced concrete soil layer, a water absorption layer and the like which are arranged on a post-cast strip, and a good anti-seepage effect can be achieved; the concrete cushion layer on the side wall of the tank body of the post-cast strip is provided with a waterproof steel plate, the concrete cushion layer at the bottom of the tank body is provided with a bottom plate and a partition plate arranged on the bottom plate, the steel plate is abutted against the partition plates at two ends of the bottom plate, the thickness of the steel plate can be designed according to actual requirements, and the requirement that the steel plate completely occupies the bottom area of the tank bottom after being installed with the bottom plate is ensured (the concrete cushion layer can be squeezed); the bottom plate and the internal water absorbing layer and other structures can be manufactured in advance and then installed in the bottom of the tank, so that the whole process is carried out efficiently and orderly.
Description
Technical Field
The invention relates to the technical field of post-cast strip waterproofing, in particular to a basement post-cast strip anti-seepage construction method.
Background
The post-cast strip is used for preventing the harmful cracks of the cast-in-place reinforced concrete structure in building construction caused by factors such as temperature, uneven shrinkage and the like, temporary construction joints are arranged at corresponding positions of a foundation slab, a wall or a beam, the structure is temporarily divided into a plurality of parts, and after the internal shrinkage of the member is carried out for a certain time, the construction joints are cast and tamped to connect the structure into a whole. In order to ensure the integrity of the structure and the impermeability of the basement structure, the large-area basement bottom plate of a high-rise building is usually in a post-cast strip form and is used as a temporary deformation joint reserved in a cast-in-place integral reinforced concrete structure, and after the main body structure is finished for a certain time and is basically stable in settlement, the post-cast strip is sealed by micro-expansive concrete, so that the structure forms a continuous whole. Through process control, reasonable and advanced construction technology is applied, the construction quality of the post-cast strip is controlled, common quality problems such as cracks, water leakage and the like of the post-cast strip are solved, the important link for ensuring the quality of the whole structure is provided, and if the structure is unreasonable or the treatment is not good during construction, the use function and the engineering quality of the engineering can be adversely affected.
Disclosure of Invention
The invention aims to provide a better anti-seepage construction method for a modified basement post-cast strip, which is used for solving the problem of water seepage hidden trouble in the existing basement bottom plate post-cast strip structure.
The technical scheme for solving the problems is as follows: the basement post-cast strip anti-seepage construction method uses a basement post-cast strip anti-seepage structure, and the basement post-cast strip anti-seepage structure comprises the following steps: the water absorption type water absorption tank comprises a post-pouring belt, walls on two sides of the post-pouring belt and a tank body, wherein the tank body is arranged on the post-pouring belt and used for pouring concrete to form a reinforced concrete layer; and an isolation net layer used for providing a gap when the water absorption layer absorbs water and expands is further arranged between the accommodating cavity and the reinforced concrete soil layer on the water absorption layer.
Preferably, two side walls of the wall body close to the post-cast strip are further provided with caulking grooves for transversely fixing the water stop strips, a water absorption expansion layer approximately parallel to the water stop strips is further poured between the two caulking grooves, and an isolation net layer is arranged between the water absorption expansion layer and the water stop strips.
Preferably, the cover plate is used for sealing the accommodating cavity, and a through hole used for communicating the accommodating cavity is formed in the cover plate.
Preferably, the water absorbing layer comprises a first water absorbing layer arranged in the same accommodating cavity and close to the cover plate and a second water absorbing layer arranged in the same accommodating cavity and close to the bottom plate.
Preferably, the water absorption layer comprises a first water absorption layer and a second water absorption layer which are positioned in different accommodating cavities.
Preferably, the first water absorption layer is a high water absorption resin layer; the second water absorption layer is a water stop strip layer.
Preferably, the water stop strip is a water-swelling water stop strip or a steel plate water stop strip.
Preferably, the isolation net layer is provided with a plurality of layers of steel wire meshes or quick and easy closing nets.
Preferably, a waterproof film is further arranged between the concrete cushion layer and the bottom plate.
Preferably, the post-cast strip is cast by micro-expansion concrete.
The invention has the beneficial effects that: the basement post-cast strip anti-seepage structure comprises a water absorption expansion layer, a water stop strip, a concrete cushion layer, a reinforced concrete layer, a water absorption layer and the like which are arranged on a post-cast strip, can play a good anti-seepage role, and meanwhile, the arranged concrete cushion layer is more beneficial to pouring and forming of subsequent concrete, so that the stability and firmness of the whole structure are ensured; the concrete cushion layer on the side wall of the tank body of the post-cast strip is provided with a waterproof steel plate, the concrete cushion layer at the bottom of the tank body is provided with a bottom plate and a partition plate arranged on the bottom plate, the steel plate is abutted against the partition plates at two ends of the bottom plate, the thickness of the steel plate can be designed according to actual requirements, and the requirement that the steel plate completely occupies the bottom area of the tank bottom after being installed with the bottom plate is ensured (the concrete cushion layer can be squeezed); the bottom plate and the structures such as the water absorption layer inside the bottom plate can be arranged in advance and then installed in the groove bottom, so that the whole process is carried out efficiently and orderly.
Drawings
Fig. 1 is a structural diagram of a basement post-cast strip anti-seepage structure used in the basement post-cast strip anti-seepage construction method of the invention.
Fig. 2 is a schematic view of an accommodating chamber according to an embodiment of the invention.
FIG. 3 is a schematic view of a water-swellable layer according to an embodiment of the present invention.
In the figure:
1-post-casting a belt; 2, a wall body; 3-a groove body; 4-reinforced concrete soil layer; 5-concrete cushion layer; 6-waterproof steel plate; 7-a bottom plate; 71-a separator plate; 8-an accommodating cavity; 9-a water-absorbing layer; 91-first water absorption layer; 92-a second water-absorbent layer; 10-a barrier web layer; 11-water stop bar; 12-caulking groove; 13-a water-swellable layer; 14-a cover plate; 141-through holes.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention and the technical solutions in the prior art, the following will describe the specific embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and it is obvious to a person skilled in the art that other drawings and other embodiments can be obtained from these drawings without inventive effort, and the invention is not limited to this example.
Please refer to fig. 1 to 3 again. The basement post-cast strip anti-seepage construction method of the embodiment of the invention uses a basement post-cast strip anti-seepage structure, and the basement post-cast strip anti-seepage structure comprises the following steps: the water-absorbing wall comprises a post-cast strip 1, walls 2 on two sides of the post-cast strip 1, and a groove body 3 arranged on the post-cast strip 1 and used for pouring concrete to form a reinforced concrete soil layer 4, wherein concrete cushion layers 5 are arranged on the inner walls of the groove body 3, waterproof steel plates 6 are arranged on the concrete cushion layers 5 positioned on the side walls of the groove body 3, a bottom plate 7 is arranged on the concrete cushion layers 5 positioned at the bottom of the groove body 3, a plurality of isolation plates 71 used for forming accommodating cavities 8 to accommodate water-absorbing layers 9 are arranged on the bottom plate 7 in the vertical direction, and the side walls of the waterproof steel plates 6 are abutted to the isolation plates 71; and an isolation net layer 10 for providing a gap when the water absorption layer absorbs water and expands is further arranged between the accommodating cavity 8 and the reinforced concrete soil layer 4 of the water absorption layer 9.
Additionally, the concrete cushion 5 is used for filling the inner wall of the tank body 3, and can be in forms of, but not limited to, mortar-masonry brick walls and the like, and waterproof materials can be coated after the concrete cushion 5 is finished; waterproof materials can be coated on the waterproof steel plate 6 or a waterproof film is sleeved on the waterproof steel plate, and the waterproof steel plate is fixed on the concrete cushion layers 5 on the two side walls of the groove body 3 through sealant and the like so as to further prevent water from permeating; the structure in this holding chamber 8 of bottom plate 7 and bottom plate 7 can arrange to accomplish the back and install in cell body 3 bottom again, and the division board 71 and the 6 looks butt of waterproof steel sheet of two ends of bottom plate 7, more specifically the thickness of waterproof steel sheet 6 that says so can design according to the width or the length of cell body 3 bottom for can occupy cell body 3 bottom area completely after waterproof steel sheet 6 and bottom plate 7 installation are accomplished, can also produce certain extrusion force to concrete bed course 5, guarantee overall structure's stability and waterproof performance.
Please refer to fig. 1 and fig. 2 again. In this example, two side walls of the wall body 2 close to the post-cast strip 1 may further be provided with caulking grooves 12 for transversely fixing water stop strips 11, a water-absorbing expansion layer 13 substantially parallel to the water stop strips 11 is further poured between the two caulking grooves 12, and an isolation mesh layer 10 is provided between the water-absorbing expansion layer 13 and the water stop strips 11, so that one end of the arranged water stop strips 11 can be embedded in the caulking grooves 12, and the other end extends out, so as to perform water penetration prevention by water expansion after the pouring of the whole reinforced concrete layer 4 is completed; the water absorption expansion layer 13 is arranged for further absorbing and preventing leakage if water remains after the water stop strip 11 absorbs water initially; the separation net layer 10 is provided for the water stop strip 11 and the water absorption expansion layer 13 to absorb water and expand.
Supplementary explanation, the water-absorbing expansion layer 13 is formed by pouring, specifically, the reinforced concrete soil layer 4 below the water-absorbing expansion layer 13 is poured firstly, after the proper conditions are achieved, the water-absorbing expansion layer 13 is poured, then the isolation net layer 10 and the water stop strips 11 are installed, and then the reinforced concrete 4 is poured to complete the structural arrangement of the whole post-cast strip 1; this water absorption inflation layer 13's main effect can absorb water, just can tentatively solve the infiltration problem completely effectively through the combination with sealing rod 11, and an embodiment can pour for the lime, certainly, can also have other modes to realize the same function and effect.
Please refer to fig. 1 and fig. 2 again. In this embodiment, a cover plate 14 for closing the accommodating cavity 8 may be further included, and a through hole 141 for communicating the accommodating cavity 8 is formed in the cover plate 14, so that the cover plate 14 may close the accommodating cavity 8, ensure that concrete does not excessively flow into the accommodating cavity 8 during pouring, and ensure that other impurities enter when the water absorption layer 9 is arranged outside; the through hole 141 can be convenient for the rivers that get into the post-cast strip to the holding chamber 8 in, absorb water through layer 9 that absorbs water.
Please refer to fig. 2 again. In this embodiment, the water-absorbing layer 9 may be formed by a first water-absorbing layer 91 disposed in the same accommodating chamber 8 and close to the cover plate 14 and a second water-absorbing layer 92 disposed in the same accommodating chamber 7, so that the water-absorbing layer 9 is formed by two layers in the same accommodating chamber 8, and is disposed vertically to absorb water by using different substances, which is more effective.
In this case, another embodiment of the water-absorbing layer 9 may include a first water-absorbing layer 91 and a second water-absorbing layer 92 in different accommodating cavities 8, which are used for the purpose of: when the materials of the first water absorption layer 91 and the second water absorption layer 92 are incompatible, the water absorption effect can be achieved and the functions are more diversified due to the separated arrangement.
In this example, one embodiment of the first absorbent layer 91 may be a super absorbent resin layer; one embodiment of the second absorbent layer 92 may be a water barrier layer, both of which are highly effective in absorbing moisture and preventing permeation. Of course, there may be other ways to achieve the same functions and actions.
In this example, the sealing rod 11 can be a water swelling sealing rod or a steel plate sealing strip, and is selected according to the use environment requirement and the cost performance, so that effective water absorption is ensured.
In this example, the isolation network layer 10 may be a multi-layer steel wire mesh or a fast and easy closing-up net, so as to make the isolation network layer 10 be composed of the multi-layer steel wire mesh or the fast and easy closing-up net, the thickness of the isolation network layer 10 can be changed by setting the number of layers, and gaps exist between the multi-layer steel wire mesh, so that the water stop strip 11, the water absorption layer 9 or the water absorption expansion layer 13 can conveniently expand after absorbing water.
In this embodiment, a waterproof film (not shown) may be further disposed between the concrete cushion layer 5 and the bottom plate 7, so that the concrete cushion layer 5 may be coated with a waterproof material or a waterproof film, and the waterproof film may be further disposed on the concrete cushion layer 5 at the bottom of the tank body 3, so that the concrete cushion layer 5 may further perform an anti-seepage function, and water entering the post-cast strip 1 may be prevented from flowing out from a gap between the waterproof steel plate 6 and the isolation plate 71.
In this example, the post-cast strip 1 can be poured by micro-expansion concrete, and the pouring by the micro-expansion concrete can be convenient for the stability of the whole structure after the pouring and forming.
Specific embodiments of the present invention have been described above in detail. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by logical analysis, reasoning or limited experiments in the prior art after the present inventive concept have been conceived by those skilled in the art should be within the scope of protection defined by the present claims.
Claims (10)
1. The anti-seepage construction method for the post-cast strip of the basement is characterized in that the anti-seepage structure for the post-cast strip of the basement is used in the anti-seepage construction method for the post-cast strip of the basement, and comprises the following steps: the water-absorbing type water-absorbing concrete trough is characterized by comprising a post-pouring belt (1), walls (2) on two sides of the post-pouring belt (1), and a trough body (3) which is arranged on the post-pouring belt (1) and used for pouring concrete to form a reinforced concrete layer (4), wherein concrete cushion layers (5) are arranged on the inner wall of the trough body (3), waterproof steel plates (6) are arranged on the concrete cushion layers (5) on the side walls of the trough body (3), a bottom plate (7) is arranged on the concrete cushion layers (5) at the bottom of the trough body (3), a plurality of isolation plates (71) used for forming water-absorbing cavities (8) to contain water-absorbing layers (9) are arranged on the bottom plate (7) in the vertical direction, and the side walls of the waterproof steel plates (6; and an isolation net layer (10) used for providing a gap when the water absorption layer absorbs water and expands is further arranged between the water absorption layer (9) in the accommodating cavity (8) and the reinforced concrete layer (4).
2. The anti-leakage construction method for the post-poured band of the basement as claimed in claim 1, wherein: and two side walls of the wall body (2) close to the post-cast strip (1) are also provided with caulking grooves (12) for transversely fixing the water stop strips (11), a water absorption expansion layer (13) parallel to the water stop strips (11) is poured between the two caulking grooves (12), and an isolation net layer (10) is arranged between the water absorption expansion layer (13) and the water stop strips (11).
3. The anti-leakage construction method for the post-poured band of the basement as claimed in claim 1, wherein: the device is characterized by further comprising a cover plate (14) used for sealing the accommodating cavity (8), wherein a through hole (141) used for communicating the accommodating cavity (8) is formed in the cover plate (14).
4. The anti-leakage construction method for the post-poured band of the basement as claimed in claim 3, wherein: the water absorption layer (9) comprises a first water absorption layer (91) which is arranged in the same accommodating cavity (8) and is close to the cover plate (14) and a second water absorption layer (92) which is arranged in the same accommodating cavity and is close to the bottom plate (7).
5. The anti-leakage construction method for the post-poured band of the basement as claimed in claim 1, wherein: the water absorption layer (9) comprises a first water absorption layer (91) and a second water absorption layer (92) which are positioned in different accommodating cavities (8).
6. The anti-leakage construction method for the post-poured basement belt according to claim 4 or 5, wherein the construction method comprises the following steps: the first water absorption layer (91) is a high water absorption resin layer; the second water absorption layer (92) is a water stop strip layer.
7. The anti-leakage construction method for the post-poured band of the basement as claimed in claim 2, wherein: the water stop strip (11) is a water stop strip capable of expanding when meeting water or a steel plate water stop sheet.
8. The anti-leakage construction method for the post-poured band of the basement as claimed in claim 1, wherein: the isolation net layer (10) is arranged into a multi-layer steel wire mesh or a quick and easy closing net.
9. The anti-leakage construction method for the post-poured band of the basement as claimed in claim 1, wherein: and a waterproof film is also arranged between the concrete cushion layer (5) and the bottom plate (7).
10. The anti-leakage construction method for the post-poured band of the basement as claimed in claim 1, wherein: the post-cast strip (1) is cast by micro-expansion concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910393868.5A CN110158664B (en) | 2019-05-13 | 2019-05-13 | Basement post-cast strip anti-seepage construction method |
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| CN201910393868.5A CN110158664B (en) | 2019-05-13 | 2019-05-13 | Basement post-cast strip anti-seepage construction method |
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| CN110158664A CN110158664A (en) | 2019-08-23 |
| CN110158664B true CN110158664B (en) | 2021-06-18 |
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| CN110952598A (en) * | 2019-10-23 | 2020-04-03 | 巨匠建设集团股份有限公司 | Construction process for reducing cracking and leakage of basement post-cast strip |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102006053186B4 (en) * | 2006-11-09 | 2008-09-04 | Hochtief Construction Ag | Method for sealing a tunnel |
| CN107326940B (en) * | 2017-09-01 | 2020-01-31 | 广州番禺职业技术学院 | basement advanced water stop post-cast strip structure and construction method thereof |
| CN207672627U (en) * | 2017-12-08 | 2018-07-31 | 广宏建设集团有限公司 | A kind of basement external wall later casting zone water stopping structure |
| CN109339259A (en) * | 2018-11-19 | 2019-02-15 | 周源 | A kind of civil engineering dilatation joint waterproof structure |
| CN109577512A (en) * | 2018-12-06 | 2019-04-05 | 蒋筠 | A kind of new material construction wall to absorb water |
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