CN210342003U

CN210342003U - Waterproof structure of building foundation pit

Info

Publication number: CN210342003U
Application number: CN201920907529.XU
Authority: CN
Inventors: 黄少强
Original assignee: Guizhou Ceg 6 Architectural Engineering Co ltd
Current assignee: Guizhou Ceg 6 Architectural Engineering Co ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-04-17
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a waterproof construction of building foundation ditch, including the foundation ditch waterproof layer, the foundation ditch waterproof layer comprises water seepage layer, drainage layer, first waterproof layer, concrete bed course, second waterproof layer, back up coat and third water proofing layer, the drainage layer is laid at the upside of water seepage layer, the upside at the drainage layer is laid to first waterproof layer, the concrete bed course is located the upside of first waterproof layer, the upside at the concrete bed course is laid to the second waterproof layer, the upside at the second waterproof layer is laid to the back up coat, the upside at the back up coat is laid to the third water proofing layer, the stainless steel bucket has been buried underground in the drainage layer, be equipped with a plurality of through-holes on the stainless steel bucket, be equipped with the PVC pipeline in the stainless steel bucket. The utility model discloses rational in infrastructure, through simple, effective, economic way, solved the problem of foundation ditch lateral wall and bottom infiltration, waterproof performance is better, guarantees that the construction normally goes on, also can solve the similar problem in the engineering construction.

Description

Waterproof structure of building foundation pit

Technical Field

The utility model relates to a building foundation ditch waterproof technical field especially relates to building foundation ditch's waterproof construction.

Background

In the underground foundation construction of buildings, because the buried depth of an elevator foundation pit is lower relative to a foundation trench, a certain amount of water is usually stored in the foundation pit after precipitation, the water resistance of the elevator foundation pit is not in place or the water seepage is caused to the side wall and the bottom of the elevator foundation pit due to the fact that a soil layer is a stagnant water layer, the normal construction of the elevator foundation pit is seriously influenced, and therefore a waterproof structure of the building foundation pit is designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the waterproof construction of building foundation ditch that proposes, it has solved the problem of foundation ditch lateral wall and bottom infiltration through simple, effective, economic way, and waterproof performance is better, guarantees that the construction normally goes on, also can solve the similar problem in the engineering construction.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the waterproof structure of the building foundation pit comprises a foundation pit waterproof layer, wherein the foundation pit waterproof layer is composed of a water seepage layer, a water filtration layer, a first waterproof layer, a concrete cushion layer, a second waterproof layer, a reinforcing layer and a third water prevention layer, the water filtration layer is laid on the upper side of the water seepage layer, the first waterproof layer is laid on the upper side of the water filtration layer, the concrete cushion layer is located on the upper side of the first waterproof layer, the second waterproof layer is laid on the upper side of the concrete cushion layer, the reinforcing layer is laid on the upper side of the second waterproof layer, the third water prevention layer is laid on the upper side of the reinforcing layer, a stainless steel barrel is buried in the water filtration layer, a plurality of through holes are formed in the stainless steel barrel, a PVC pipeline is arranged in the stainless steel barrel, and the PVC pipeline penetrates through the first waterproof layer, the concrete cushion layer.

Preferably, the material of the permeable layer is a tamped sandstone layer.

Preferably, the material of the water filtering layer is cobblestones.

Preferably, the first waterproof layer is made of mortar concrete with the thickness of mm.

Preferably, the second waterproof layer is made of SBS modified asphalt coiled materials.

Preferably, the material of the reinforcing layer is mortar concrete with a reinforcing mesh arranged inside.

Preferably, the third waterproof layer is made of a cement-based waterproof coating which is coated three times.

Compared with the prior art, the utility model, its beneficial effect does:

the utility model can increase the stability and the waterproof effect of the foundation pit waterproof layer through the first waterproof layer, and can effectively prevent rainwater or groundwater from infiltrating into the upper side of the foundation pit waterproof layer through the second waterproof layer and the third waterproof layer; rainwater can groundwater get into the drainage layer through the infiltration layer, and the intraformational water of drainage flows to stainless steel bucket in through a plurality of through-holes, is connected with external self priming water pump through the PVC pipeline, can be with the water discharge in the stainless steel bucket, through simple, effective, economic way, has solved the problem of foundation ditch lateral wall and bottom infiltration, and waterproof performance is better, guarantees that the construction normally goes on.

To sum up, the utility model discloses rational in infrastructure, through simple, effective, economic way, solved the problem of foundation ditch lateral wall and bottom infiltration, waterproof performance is better, guarantees that the construction normally goes on, also can solve the similar problem in the engineering construction.

Drawings

Fig. 1 is a cross-sectional view of a waterproof structure of a building foundation pit according to the present invention;

fig. 2 is an enlarged view of a structure a in fig. 1.

In the figure: the concrete waterproof structure comprises a foundation pit waterproof layer 1, a water seepage layer 2, a water filtering layer 3, a first waterproof layer 4, a concrete cushion layer 5, a second waterproof layer 6, a reinforcing layer 7, a third water prevention layer 8, a PVC pipeline 9, a stainless steel barrel 10 and a through hole 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, the waterproof structure of the building foundation pit comprises a foundation pit waterproof layer 1, wherein the foundation pit waterproof layer 1 consists of a water seepage layer 2, a water filtration layer 3, a first waterproof layer 4, a concrete cushion layer 5, a second waterproof layer 6, a reinforcement layer 7 and a third water prevention layer 8, the water filtration layer 3 is laid on the upper side of the water seepage layer 2, the water seepage layer 2 is made of a tamped sandstone layer, the water seepage layer 2 is laid on a foundation pit surface, and the foundation pit soil layer is tamped; the water filtering layer 3 is made of cobblestones, the cobblestone particles are large and the gaps are large, so that the infiltrated water can be discharged into the stainless steel barrel 10 through the through holes 11 as soon as possible (the infiltrated water has no much soil through the filtering of the water filtering layer 2).

The first waterproof layer 4 is laid on the upper side of the water filtering layer 3, the first waterproof layer 4 is made of 150mm thick mortar concrete, and the mortar concrete contains 5% of waterproof agent; the concrete cushion layer 5 is positioned on the upper side of the first waterproof layer 4, the second waterproof layer 6 is laid on the upper side of the concrete cushion layer 5, the second waterproof layer 6 is made of SBS modified asphalt coiled materials, and the SBS modified asphalt coiled materials are connected with the concrete cushion layer 5 through adhesives; the reinforcing layer 7 is laid on the upper side of the second waterproof layer 6, the reinforcing layer 7 is made of mortar concrete with a reinforcing mesh arranged inside, the firmness of the foundation pit waterproof layer 1 can be improved through the reinforcing mesh, and the reinforcing mesh can penetrate through the second waterproof layer 6 through connecting pieces such as reinforcing steel bars and is connected with the concrete cushion layer 5.

The third water-proofing layer 8 is paved on the upper side of the reinforcing layer 7, the material of the third water-proofing layer 8 is cement-based waterproof paint which is brushed for three times, the first layer of cement-based waterproof paint is brushed, plastic or a squeegee can be used for uniformly brushing, the thickness is required to be consistent, and the thickness is controlled to be 0.5-1 mm; coating a second layer of cement-based waterproof coating (the first layer is cured and then does not stick to hands), wherein the coating direction is vertical to the first coating direction, and the thickness is controlled to be 0.5-1 mm; and the scraping direction of the third layer of cement-based waterproof coating is vertical to the scraping direction of the second layer of cement-based waterproof coating, the thickness is controlled to be 0.5-1mm, and the total thickness is about 2 mm.

A stainless steel barrel 10 is embedded in the water filtering layer 3, a plurality of through holes 11 are formed in the stainless steel barrel 10, and the plurality of through holes 11 are annularly arranged on the outer wall of the upper side of the stainless steel barrel 10; a PVC pipeline 9 is arranged in the stainless steel barrel 10, and the thickness of the PVC pipeline 9 is 3 mm; PVC pipeline 9 runs through first waterproof layer 4, concrete bed course 5, second waterproof layer 6, back up coat 7 and third waterproof layer 8 and stretches out, and PVC pipeline 9 can absorb water with self priming water pump and hold the connection, for drainage infiltration stainless steel barrel 10 in groundwater or the rainwater.

In the utility model, the stability and the waterproof effect of the foundation pit waterproof layer 1 can be increased through the first waterproof layer 4, and rainwater or groundwater can be effectively prevented from permeating into the upper side of the foundation pit waterproof layer 1 through the second waterproof layer 6 and the third waterproof layer 8; rainwater or groundwater pass through infiltration layer 2 and get into drainage layer 3, and water in the drainage layer 3 flows to stainless steel bucket 10 in through a plurality of through-holes 11, is connected with external self priming water pump (not drawn in the picture) through PVC pipeline 9, can discharge the water in stainless steel bucket 10, through simple, effective, economic way, has solved the problem of foundation ditch lateral wall and bottom infiltration, and waterproof performance is better, guarantees that the construction normally goes on.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The waterproof structure of the building foundation pit comprises a foundation pit waterproof layer (1) and is characterized in that the foundation pit waterproof layer (1) consists of a water seepage layer (2), a water filtering layer (3), a first waterproof layer (4), a concrete cushion layer (5), a second waterproof layer (6), a reinforcing layer (7) and a third water proofing layer (8), the water filtering layer (3) is laid on the upper side of the water seepage layer (2), the first waterproof layer (4) is laid on the upper side of the water filtering layer (3), the concrete cushion layer (5) is positioned on the upper side of the first waterproof layer (4), the second waterproof layer (6) is laid on the upper side of the concrete cushion layer (5), the reinforcing layer (7) is laid on the upper side of the second waterproof layer (6), the third water proofing layer (8) is laid on the upper side of the reinforcing layer (7), a stainless steel barrel (10) is buried in the water filtering layer (3), and a plurality of through holes (11) are formed in the stainless steel barrel (10), the stainless steel barrel is characterized in that a PVC pipeline (9) is arranged in the stainless steel barrel (10), and the PVC pipeline (9) penetrates through the first waterproof layer (4), the concrete cushion layer (5), the second waterproof layer (6), the reinforcing layer (7) and the third waterproof layer (8) and extends out.

2. The waterproof structure of a building foundation pit according to claim 1, wherein the water-permeable layer (2) is made of a tamped gravel layer.

3. The waterproof structure of a building foundation pit according to claim 1, wherein the water filtering layer (3) is made of cobblestones.

4. The waterproof structure of a building foundation pit according to claim 1, wherein the material of the first waterproof layer (4) is 150mm thick mortar concrete.

5. The waterproof structure of a building foundation pit according to claim 1, wherein the material of the second waterproof layer (6) is SBS modified asphalt coiled material.

6. The waterproof structure of a building foundation pit according to claim 1, wherein the material of the reinforcing layer (7) is mortar concrete with a reinforcing mesh inside.

7. The waterproof structure of a building foundation pit according to claim 1, wherein the third waterproof layer (8) is made of a cement-based waterproof coating material which is painted three times.