CN216973458U - Shallow foundation pit dewatering structure - Google Patents
Shallow foundation pit dewatering structure Download PDFInfo
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- CN216973458U CN216973458U CN202122197011.1U CN202122197011U CN216973458U CN 216973458 U CN216973458 U CN 216973458U CN 202122197011 U CN202122197011 U CN 202122197011U CN 216973458 U CN216973458 U CN 216973458U
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- foundation pit
- drain pipe
- shallow foundation
- groove
- shallow
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Abstract
The utility model discloses a shallow foundation pit dewatering structure, and relates to the technical field of foundation pit dewatering in constructional engineering. The method aims to solve the problem that when a shallow foundation pit is excavated in an area with a higher underground water level, the precipitation requirement of the shallow foundation pit cannot be met by combining an open trench with a water collecting well, and the foundation construction of a bearing platform cannot be smoothly implemented. The drainage pipe comprises a groove, a drainage pipe and a water suction pump, wherein the groove is enclosed on the outer side of a bearing platform foundation, the drainage pipe is arranged in the groove along the length direction of the groove, a through hole is formed in the side wall of the drainage pipe, and one end of the drainage pipe extends to the top of a shallow foundation pit and is communicated with the water suction pump.
Description
Technical Field
The utility model relates to the technical field of foundation pit dewatering in constructional engineering, in particular to a shallow foundation pit dewatering structure.
Background
For areas with high underground water level, geology is mostly a soil layer with low permeability coefficient, and the soil layer usually contains sandstone interlayers with high permeability. At present, for the construction of a shallow foundation pit under the geological condition, a common precipitation method is to combine open ditches with a water collecting well for precipitation, however, underground water around the foundation pit continuously infiltrates into the foundation pit, the precipitation mode cannot effectively and timely carry out precipitation on the shallow foundation pit, and the drainage efficiency cannot meet the construction requirement of the shallow foundation pit, so that the foundation construction of a bearing platform cannot be smoothly implemented.
Disclosure of Invention
The utility model aims to provide a shallow foundation pit dewatering structure, which solves the problem that the construction of a bearing platform foundation cannot be smoothly implemented because the dewatering mode of an open trench combined with a water collecting well cannot meet the dewatering requirement of the shallow foundation pit when a shallow foundation pit is excavated in an area with a higher underground water level.
The technical scheme adopted by the utility model for solving the technical problem is as follows: the utility model provides a shallow foundation pit dewatering structure, it includes:
the groove is enclosed at the outer side of the bottom of the bearing platform foundation;
the drain pipe is arranged in the groove along the extending direction of the groove, the drain pipe is lower than the groundwater level of the shallow foundation pit, a through hole is formed in the side wall of the drain pipe along the length direction of the drain pipe, and one end of the drain pipe extends to the top of the shallow foundation pit;
and the water suction pump is arranged at the top of the shallow foundation pit and is communicated with the extension end of the drain pipe.
The utility model relates to a shallow foundation pit dewatering structure, which comprises a groove, a drain pipe and a water suction pump, wherein the groove is enclosed outside a bearing platform foundation, the drain pipe is arranged in the groove along the length direction of the groove, the side wall of the drain pipe is provided with a through hole, one end of the drain pipe extends to the top of the shallow foundation pit and is communicated with the water suction pump, because the seepage water on the side wall of the foundation pit can be collected in the groove, the seepage water can be quickly and timely discharged through the drain pipe laid in the groove, compared with the dewatering mode that an open groove is combined with a water collecting well, the groove of the technical scheme is horizontally arranged and enclosed outside the bearing platform foundation, the construction is more convenient, the drain pipe is laid along the extending direction of the groove, the local ponding in the groove can be avoided, the seepage water in the drain pipe is intensively discharged through the water suction pump at one end of the drain pipe, so that the dewatering is quickly and effectively carried out on the shallow foundation pit, and the dewatering effect of the shallow foundation pit is ensured, the method is beneficial to the smooth operation of the next procedure of the foundation bearing platform, and the economic benefit of foundation pit dewatering construction is improved.
Furthermore, the outer wall of the drain pipe is also covered with a filter screen.
Furthermore, a covering soil layer covering the drain pipe is further arranged in the groove, and the covering soil layer is formed by filling soil of the original shallow foundation pit.
Furthermore, a concrete cushion layer is further laid at the bottom of the foundation bearing platform, and the drain pipe and the covering soil layer are located below the concrete cushion layer.
Drawings
Fig. 1 is a schematic structural view of a shallow foundation pit dewatering structure according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a schematic structural view of the soil cover layer and the drainage pipe according to an embodiment of the present invention.
The numbers in the figures are as follows:
Detailed Description
The utility model is described in further detail below with reference to the figures and specific examples. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this is not a limitation of the technical solution of the present invention.
In this embodiment, the shallow foundation pit 1 has a low permeability soil layer, and the soil layer contains a sandrock interlayer with a relatively high water permeability, and the structure for lowering water in the shallow foundation pit 1 according to the present invention is described below with reference to fig. 1 to 3, and includes:
the groove 5 is enclosed on the outer side of the bottom of the bearing platform foundation 2;
the drain pipe 6 is arranged in the trench 5 along the extending direction of the trench 5, the drain pipe 6 is lower than the groundwater level of the shallow foundation pit 1, a through hole is formed in the side wall of the drain pipe 6 along the length direction of the drain pipe, and one end of the drain pipe 6 extends to the top of the shallow foundation pit 1;
and the water suction pump 9 is arranged at the top of the shallow foundation pit 1 and is communicated with the extending end of the water drainage pipe 6.
The utility model relates to a dewatering structure of a shallow foundation pit 1, which comprises a groove 5, a drain pipe 6 and a water suction pump 9, wherein the groove 5 is enclosed outside a bearing platform foundation 2, the drain pipe 6 is arranged in the groove 5 along the length direction of the groove 5, the side wall of the drain pipe 6 is provided with a through hole, one end of the drain pipe 6 extends to the top of the shallow foundation pit 1 and is communicated with the water suction pump 9, because the seepage water on the side wall of the foundation pit can be collected in the groove 5, the seepage water can be quickly and timely discharged through the drain pipe 6 laid in the groove 5, compared with the dewatering mode of combining an open trench with a water collecting well, the groove 5 is horizontally arranged and enclosed outside the bearing platform foundation 2, the construction is more convenient, the drain pipe 6 is laid along the extending direction of the groove 5, the local water accumulation in the groove 5 can be avoided, the seepage water in the drain pipe 6 is intensively discharged through the water suction pump 9 positioned at one end of the drain pipe, so that the water can be quickly discharged, Effectively implement the precipitation to shallow foundation pit 1, guaranteed the precipitation effect of shallow foundation pit 1, be favorable to going on smoothly of one process under the basic cushion cap, moreover, improved the economic benefits of foundation pit precipitation construction.
As shown in fig. 3, the outer wall of the drain pipe 6 is further covered with a filter screen 7, so that the problem that soil, impurities and the like in the groove 5 block the through hole of the drain pipe 6 to cause unsmooth drainage is avoided.
As shown in fig. 2, a soil cover layer 8 covering the drain pipe 6 is further provided in the trench 5, the soil cover layer 8 is filled with an original foundation pit soil, and the provision of the soil cover layer 8 can improve the drainage efficiency.
With reference to fig. 2, a concrete cushion 3 is further laid at the bottom of the foundation bearing platform, and the drain pipe 6 and the soil cover layer 8 are located below the concrete cushion 3 to increase the contact area between the soil cover layer 8 and the foundation pit soil.
The process of adopting the 1 precipitation structure of shallow foundation ditch of this embodiment to carry out precipitation is as follows:
after the shallow foundation pit 1 is excavated, digging a circle of closed grooves 5 at the bottom of the pit along the outer edge area of a foundation bearing platform, placing drain pipes 6 in the extending direction of the grooves 5, wherein the drain pipes 6 are provided with through holes along the length direction and externally coated with filter screens 7, one ends of the drain pipes 6 extend to the top of the pit, and the water outlet ends of the drain pipes are communicated with a water suction pump 9 positioned at the top of the pit;
adopting original foundation pit soil to backfill the groove 5 to form a covering soil layer 8, burying the drain pipe 6 below the soil surface of the covering soil layer 8, opening the water suction pump 9 to carry out precipitation on the shallow foundation pit 1, and after the construction of the foundation bearing platform structure is finished, adopting a mode of digging out or cutting off the drain pipe 6 to carry out treatment.
The above description is only for the purpose of describing preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are intended to fall within the scope of the appended claims.
Claims (4)
1. The utility model provides a shallow foundation pit dewatering structure which characterized in that includes:
the groove is enclosed at the outer side of the bottom of the bearing platform foundation;
the drain pipe is arranged in the groove along the extending direction of the groove, the drain pipe is lower than the groundwater level of the shallow foundation pit, a through hole is formed in the side wall of the drain pipe along the length direction of the drain pipe, and one end of the drain pipe extends to the top of the shallow foundation pit;
and the water suction pump is arranged at the top of the shallow foundation pit and is communicated with the extending end of the drain pipe.
2. The shallow foundation pit dewatering structure of claim 1, wherein: the outer wall of the drain pipe is further coated with a filter screen.
3. The shallow foundation pit dewatering structure of claim 1, wherein: and a covering soil layer coated on the drain pipe is further arranged in the groove and is formed by filling soil of the original shallow foundation pit.
4. The shallow foundation pit dewatering structure of claim 3, wherein: the concrete cushion is further paved at the bottom of the bearing platform foundation, and the drain pipe and the soil covering layer are located below the concrete cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197011.1U CN216973458U (en) | 2021-09-10 | 2021-09-10 | Shallow foundation pit dewatering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197011.1U CN216973458U (en) | 2021-09-10 | 2021-09-10 | Shallow foundation pit dewatering structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216973458U true CN216973458U (en) | 2022-07-15 |
Family
ID=82337657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122197011.1U Active CN216973458U (en) | 2021-09-10 | 2021-09-10 | Shallow foundation pit dewatering structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216973458U (en) |
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2021
- 2021-09-10 CN CN202122197011.1U patent/CN216973458U/en active Active
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