CN-224227865-U - Anti-floating pressure-limiting well structure of basement

CN224227865UCN 224227865 UCN224227865 UCN 224227865UCN-224227865-U

Abstract

The utility model discloses a basement anti-floating pressure-limiting well structure which comprises a pressure-limiting well body arranged below a basement bottom plate, a water guide pipe arranged in the pressure-limiting well body and a water pumping system communicated into the pressure-limiting well body, wherein one end of the water guide pipe penetrates through the pressure-limiting well and is inserted into a reverse filtering layer, a filtering water inlet is formed in the end of the water guide pipe, the other end of the water guide pipe extends into the pressure-limiting well body, an adjusting valve is arranged at the end part of the end of the water guide pipe, the adjusting valve comprises a valve cage, a floater and a plug connected below the floater through a connecting rod, and the size of the plug is matched with the size of the end part of the water guide pipe. According to the utility model, the pressure balance of the basement can be maintained, the potential safety hazard is avoided, and the construction period is saved by carrying out structural transformation on the basement bottom plate or adding the pressure limiting well and automatically carrying out opening and closing adjustment through the buoyancy of the basement.

Inventors

XU PAN
JIANG WEI
TAN CHUNLIN
YANG GUO
Li Mohong
LI QING
LI JINHONG
LIU JIANMING

Assignees

中国华西企业股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250421

Claims (6)

1. A basement anti-floating pressure-limiting well structure is characterized by comprising a pressure-limiting well body (1) arranged below a basement bottom plate (6), a water guide pipe (3) arranged in the pressure-limiting well body (1) and a water pumping system communicated into the pressure-limiting well body (1), wherein one end of the water guide pipe (3) is inserted into a counter filter layer (5) through the pressure-limiting well, a filtering water inlet is formed in the end, the other end of the water guide pipe (3) stretches into the pressure-limiting well body (1), an adjusting valve (4) is arranged at the end part of the end of the water guide pipe (3), the adjusting valve (4) comprises a valve cage, a floater (8) and a plug (7) connected below the floater (8) through a connecting rod, and the size of the plug (7) is matched with the size of the end part of the water guide pipe (3).
2. The structure of the basement anti-floating pressure limiting well according to claim 1, wherein the valve cage comprises an upper valve cage (10) and a lower valve cage (11), the floater (8) is arranged in the upper valve cage (10), and the balancing weight is arranged on the floater (8).
3. The anti-floating pressure limiting well structure of a basement according to claim 2, wherein guide grooves of floats (8) are formed in two sides of the upper valve cage (10), guide rods (9) are arranged on two sides of the floats (8), and the guide rods (9) penetrate into the guide grooves.
4. The anti-floating pressure limiting well structure of a basement according to claim 1, wherein the connecting rod and the plug (7) are arranged in the lower valve cage (11), and a plurality of drainage grooves (12) are formed in the periphery of the lower valve cage (11).
5. The anti-floating pressure limiting well structure of the basement according to claim 4, wherein the plug (7) is conical, and a conical plate is arranged at the end part of the water guide pipe (3).
6. The anti-floating pressure limiting well structure of a basement according to claim 1, wherein the pumping system comprises a water pump and a water pumping pipe (2), and one end of the water pumping pipe (2) extends into the bottom of the pressure limiting well body (1).

Description

Anti-floating pressure-limiting well structure of basement Technical Field The utility model belongs to the technical field of basement anti-floating systems, and particularly relates to an anti-floating pressure-limiting well structure of a basement. Background When the rainy season comes, rainwater can infiltrate into the foundation pit from the basement outer wall, and then infiltrate into the lower part of the basement bottom plate. Due to the action of water pressure, the basement bottom plate can arch upwards to deform, a water inlet channel is further enlarged, vicious circle is formed, and finally the basement bottom plate is cracked, and a large amount of groundwater is poured in. When serious, the basement can float up under the effect of water pressure as a whole even, leads to structural member deformation, causes the potential safety hazard. Therefore, the basement needs to be applied to anti-floating measures, and in the prior art, the method mainly adopted for anti-floating of the basement is that the weight is increased by the method of increasing the earth covering thickness of the top plate of the basement and arranging a counterweight below the bottom plate, so that the self weight of the basement is increased, and the buoyancy is resisted. Or providing anti-floating members, such as anti-floating anchors, anti-uplift piles, etc., which can provide additional pull-down force to help resist the buoyancy of the basement. The buoyancy eliminating method includes draining water, and setting draining holes or draining system in the bottom or side wall of the basement to drain the ground water to reduce or eliminate the buoyancy effect of ground water on the basement. However, both anti-floating measures have certain defects, such as large water pressure in holes on the basement bottom plate, influence on the basement use, and increase of cost. And the construction period of the resistance balancing method is longer and the cost is higher. Disclosure of utility model The utility model aims to provide an anti-floating pressure limiting well structure of a basement, which can keep the pressure balance of the basement, avoid potential safety hazards and save construction period by carrying out structural transformation on a basement bottom plate or adding a pressure limiting well and automatically carrying out opening and closing adjustment through the buoyancy of the basement. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The anti-floating pressure-limiting well structure for the basement comprises a pressure-limiting well body arranged below a basement bottom plate, a water guide pipe arranged in the pressure-limiting well body and a water pumping system communicated into the pressure-limiting well body, wherein one end of the water guide pipe penetrates through the pressure-limiting well to be inserted into a counter-filtering layer, a filtering water inlet is formed in the end of the water guide pipe, the other end of the water guide pipe stretches into the pressure-limiting well body, an adjusting valve is arranged at the end part of the end of the water guide pipe, the adjusting valve comprises a valve cage, a floater and a plug connected below the floater through a connecting rod, and the size of the plug is matched with that of the end part of the water guide pipe. Further, the valve cage comprises an upper valve cage and a lower valve cage, the floater is arranged in the upper valve cage, and the balancing weight is arranged on the floater. Further, float guide grooves are formed in two sides of the upper valve cage, guide rods are arranged on two sides of the floats, and the guide rods penetrate into the guide grooves. Further, the connecting rod and the plug are arranged in the lower valve cage, and a plurality of drainage grooves are formed in the periphery of the lower valve cage. Further, the plug is conical, and a conical plate is arranged at the end part of the water guide pipe. Further, the pumping system comprises a water pump and a water pumping pipe, and one end of the water pumping pipe extends into the bottom of the pressure limiting well body. Compared with the prior art, the utility model has the advantages that firstly, the pressure limiting well is modified or newly added at the position of the basement bottom plate, and the opening and closing valve automatically regulated according to buoyancy is arranged in the pressure limiting well, so that additional control components such as electric connection and the like are not needed. When the precipitation amount is large in rainy season, after groundwater is permeated below the basement bottom plate, the water pressure is increased, the floats are automatically jacked, and the groundwater is discharged into the pressure limiting well through the water guide pipe, so that the buoyancy born by the basement structure is always smaller than the bearing capacity of the st