CN217679111U

CN217679111U - Waterproof foundation pit

Info

Publication number: CN217679111U
Application number: CN202221578719.XU
Authority: CN
Inventors: 潘志备; 潘健辉; 钟永星
Original assignee: Jinhua Sanri Construction Co ltd
Current assignee: Jinhua Sanri Construction Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-10-28
Anticipated expiration: 2032-06-22

Abstract

The utility model provides a waterproof foundation pit, including the foundation ditch body with set up in the cement bed course of foundation ditch body inner wall, the foundation ditch body is provided with the wax matrix of a plurality of U-shaped, the wax matrix is used for the embedding in the cement bed course, foundation ditch body diapire inlays and is equipped with the water tank, the water tank up end is provided with the alignment wax matrix cross position's inlet opening, foundation ditch body diapire inlays and is equipped with the intercommunication the water pump of water tank. The utility model discloses following beneficial effect has: through the cooperation that utilizes wax loss method and ingenious structure, form the drainage runner in the foundation ditch to carry out suction and drainage with the infiltration of each position of foundation ditch, guarantee the aridity of foundation ditch in the source position, thereby improve the waterproof performance of foundation ditch.

Description

Waterproof foundation pit

Technical Field

The utility model relates to a construction field, in particular to waterproof foundation ditch.

Background

The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. Before excavation, an excavation scheme is determined according to geological and hydrological data and the conditions of buildings nearby the site, and waterproof drainage work is performed.

The foundation ditch infiltration can cause incident such as collapse, therefore the waterproof performance of foundation ditch is of great concern, and in current foundation ditch waterproofing, only lay waterproofing membrane in the foundation ditch usually, but the waterproof performance of this kind of structure is relatively poor, remains to improve.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a waterproof foundation ditch.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a waterproof foundation pit, include the foundation pit body with set up in the cement bed course of foundation pit body inner wall, the foundation pit body is provided with the wax matrix of a plurality of U-shaped, the wax matrix is used for the embedding in the cement bed course, foundation pit body diapire inlays and is equipped with the water tank, the water tank up end is provided with the alignment the inlet opening of wax matrix cross position, foundation pit body diapire inlays and is equipped with the intercommunication the water pump of water tank.

Through above-mentioned technical scheme, when being under construction to the foundation ditch, install water tank and water pump earlier, then the wax matrix is horizontal and vertically laid in foundation ditch body diapire, then is under construction to the cement bed course again. And after the cement cushion layer is completely dried, heating the cement cushion layer to melt the wax pattern, and forming a flow channel communicated with the water tank at the original position of the wax pattern. Consequently when the infiltration, the infiltration can collect to the water tank along the runner in, realize the fixed point drainage of infiltration to can utilize the water pump to aspirate, make and produce the negative pressure in the water tank, aspirate and the drainage with the infiltration of each position, guarantee the aridity of foundation ditch in the source position, thereby improve the waterproof performance of foundation ditch. Therefore, through the cooperation of the lost wax method and the ingenious structure, a drainage flow channel is formed in the foundation pit, the water seepage of all positions of the foundation pit is pumped and drained, the dryness of the foundation pit is guaranteed at the source position, and the waterproof performance of the foundation pit is improved.

Furthermore, a waterproof coiled material layer is arranged on the cement cushion layer, and a cement outer layer is arranged on the waterproof coiled material layer.

Through above-mentioned technical scheme, through addding waterproof roll material layer and cement skin, further improve the waterproof performance of foundation ditch, avoid appearing the infiltration phenomenon.

Furthermore, both sides of the waterproof roll material layer are provided with bonding layers.

Through above-mentioned technical scheme, through setting up the tie coat, firmly fix waterproof roll material layer, increase the stability on waterproof roll material layer. And meanwhile, the mode of bonding is adopted, the sealing property of the two sides of the waterproof roll layer is increased, and the phenomenon of water channeling in water seepage is prevented, so that the waterproof performance of the whole foundation pit is improved.

Further, a foam layer is arranged between the waterproof roll material layer and the cement outer layer.

Through above-mentioned technical scheme, carry out the heat preservation protection to the waterproof roll material layer through setting up the heat preservation, avoid the waterproof roll material layer expend with heat and contract with cold and the crack appears, guarantee the waterproof nature on waterproof roll material layer.

Furthermore, one side of the foam layer close to the outer cement layer is a frosted surface.

Through above-mentioned technical scheme, through setting up the foam blanket into frosting, increase the frictional force between foam blanket and the cement skin, guarantee that the outer adhesion that can stabilize of cement is on the foam blanket surface, increase structural strength and stability between them.

Furthermore, a plurality of concave holes are uniformly distributed on one side of the foam layer close to the outer cement layer.

Through above-mentioned technical scheme, because there is the shrinkage pool on the surface on foam layer, consequently in the outer work progress of cement, the cement can be embedded into in the shrinkage pool outward, increases structural strength and connection stability between the two.

Further, the waterproof roll material layer comprises a plurality of U-shaped roll material strips which are transversely and longitudinally arranged, and the adjacent roll material strips are mutually overlapped.

Through above-mentioned technical scheme, splice into waterproof roll material layer through the coiled material strip that adopts the U-shaped, make the diapire position of foundation ditch body be the bilayer to guarantee the waterproof performance of foundation ditch.

Further, the lap joint distance between the adjacent coiled material strips is 10-15cm.

Through the technical scheme, the lap joint distance of 10-15cm is adopted, so that the structural strength and the connection stability between the adjacent coiled material strips are ensured.

To sum up, the utility model discloses following beneficial effect has:

1. by utilizing the matching of a lost wax method and a smart structure, a drainage flow channel is formed in the foundation pit, and the seepage water at each position of the foundation pit is pumped and drained, so that the dryness of the foundation pit is ensured at the source position, and the waterproof performance of the foundation pit is improved;

2. the waterproof performance of the foundation pit is improved and the water seepage phenomenon is avoided by additionally arranging the waterproof roll material layer and the outer cement layer;

3. carry out the heat preservation protection to the waterproof coiled material layer through setting up the heat preservation, avoid the waterproof coiled material layer expend with heat and contract with cold and the crack appears, guarantee the waterproof nature on waterproof coiled material layer.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic diagram of the connection relationship of the present embodiment;

fig. 3 is a schematic structural view of the waterproof roll layer of the present embodiment.

Reference numerals are as follows: 1. a foundation pit body; 2. a cement cushion layer; 3. a waterproof roll layer; 31. a coil stock strip; 4. a foam layer; 41. concave holes; 5. an outer layer of cement; 6. a bonding layer; 7. wax pattern; 8. a water tank; 81. a water inlet hole; 9. a water pump; 91. and (5) discharging a water pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the waterproof foundation pit comprises a foundation pit body 1, wherein a cement cushion layer 2, a waterproof coiled material layer 3, a foam layer 4 and a cement outer layer 5 are sequentially arranged on the inner side of the foundation pit body 1. Wherein, both sides of the waterproof coiled material layer 3 are provided with bonding layers 6 for bonding the waterproof coiled material layer to the cement cushion layer 2 and the foam layer 4.

As shown in fig. 1 and 2, a plurality of U-shaped wax molds 7 are arranged in the foundation pit body 1, and the U-shaped wax molds 7 are transversely and longitudinally arranged in a staggered manner, wherein the wax molds 7 are embedded in the cement cushion layer 2, and after the wax molds 7 are melted, a flow passage communicated with each other is formed.

As shown in fig. 1 and 2, the bottom wall of the foundation pit body 1 is embedded with a water tank 8, the upper end face of the water tank 8 is provided with a plurality of water inlets 81, and the water inlets 81 are aligned with the intersection positions of the wax molds 7. The bottom wall of the foundation pit body 1 is embedded with a water pump 9 communicated with the water tank 8, and a water outlet pipe 91 extending to the outside of the ground is arranged at the water outlet end of the water pump 9.

When being under construction to the foundation ditch, install water tank 8 and water pump 9 earlier, then wax matrix 7 transversely with vertically lay in foundation ditch body 1 diapire to make wax matrix 7's crossing position aim at inlet opening 81 on the water tank 8, construct cement cushion 2 afterwards.

And after the cement cushion layer 2 is completely dried, heating the cement cushion layer 2 to melt the wax mold 7, wherein a flow passage communicated with the water tank 8 is formed at the original position of the wax mold 7. Therefore, when water seepage occurs, the seepage water can be collected into the water tank 8 along the flow channel, and fixed-point drainage of the seepage water is realized.

And after a period of time, can utilize water pump 9 to suck, produce the negative pressure in the messenger water tank 8 to with the infiltration of each position suction and drainage, guarantee the aridity of foundation ditch in the source position, thereby improve the waterproof performance of foundation ditch.

When the wax mould 7 is melted, the waterproof coiled material layer 3 is bonded and fixed on the cement cushion layer 2 when the cement cushion layer 2 is still warm, so that the waterproof coiled material is bonded and fixed. And then, the foam layer 4 is bonded and fixed on the surface of the waterproof roll material layer 3, and the cement outer layer 5 is coated, so that the waterproof construction of the whole foundation pit can be realized.

And after waterproof construction, owing to adopt the mode of bonding to realize fixing of waterproof roll material layer 3, consequently can increase the leakproofness on waterproof roll material layer 3 both sides, prevent that the infiltration from scurrying the water phenomenon, improve the waterproof performance of foundation ditch. And utilize the heat preservation to carry out heat preservation protection to waterproof coil material layer 3, avoid waterproof coil material layer 3 expend with heat and contract with cold and appear the crack.

As shown in fig. 2, a frosted surface is arranged on one side of the foam layer 4 close to the cement outer layer 5, and a plurality of concave holes 41 are uniformly distributed on one side of the foam layer 4 close to the cement outer layer 5.

Because the surface of foam layer 4 is the frosting to have shrinkage pool 41, consequently when being under construction to cement skin 5, can increase the frictional force between foam layer 4 and the cement skin 5 promptly, can make the outer 5 embedding shrinkage pool 41 of cement again in, make both fuse together, increase structural strength and connection stability between the two, improve the leakproofness between the two simultaneously.

As shown in fig. 3, the waterproof roll layer 3 includes a plurality of U-shaped roll strips 31 arranged in the transverse and longitudinal directions, adjacent roll strips 31 are overlapped with each other, and the overlapping distance between adjacent roll strips 31 is 10-15cm.

When laying waterproof roll material layer 3, splice into waterproof roll material layer 3 through the coiled material strip 31 that adopts the U-shaped, make the diapire position of foundation ditch body 1 be the bilayer, because the foundation ditch diapire is main bearing position again, consequently can guarantee the waterproof performance of foundation ditch diapire position.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A waterproof foundation ditch, its characterized in that: including foundation ditch body (1) with set up in cement bed course (2) of foundation ditch body (1) inner wall, foundation ditch body (1) is provided with wax matrix (7) of a plurality of U-shaped, wax matrix (7) are used for the embedding in cement bed course (2), foundation ditch body (1) diapire inlays and is equipped with water tank (8), water tank (8) up end is provided with the alignment inlet opening (81) of wax matrix (7) cross position, foundation ditch body (1) diapire inlays and is equipped with the intercommunication water pump (9) of water tank (8).

2. A waterproof foundation pit according to claim 1, wherein: the waterproof roll material layer is characterized in that a waterproof roll material layer (3) is arranged on the cement cushion layer (2), and a cement outer layer (5) is arranged on the waterproof roll material layer (3).

3. A waterproof foundation pit according to claim 2, wherein: and both sides of the waterproof roll material layer (3) are provided with bonding layers (6).

4. A waterproof foundation pit according to claim 3, wherein: and a foam layer (4) is arranged between the waterproof roll material layer (3) and the cement outer layer (5).

5. A waterproof foundation pit according to claim 4, wherein: one side of the foam layer (4) close to the outer cement layer (5) is a frosted surface.

6. A waterproof foundation pit according to claim 4, characterized in that: a plurality of concave holes (41) are uniformly distributed on one side of the foam layer (4) close to the outer cement layer (5).

7. A waterproof foundation pit according to claim 1, wherein: the waterproof roll material layer (3) comprises a plurality of U-shaped roll material strips (31) which are transversely and longitudinally arranged, and the adjacent roll material strips (31) are mutually overlapped.

8. A waterproof foundation pit according to claim 7, wherein: the lap distance between the adjacent coil strips (31) is 10-15cm.