CN218952216U

CN218952216U - Pit water collecting well

Info

Publication number: CN218952216U
Application number: CN202222923864.3U
Authority: CN
Inventors: 石海松; 陈铭; 周兵; 王智力; 陈向科; 熊怡杰; 王申农; 谭以兵; 严俊
Original assignee: China Gezhouba Group Municipal Engineering Co ltd; China Gezhouba Group Co Ltd
Current assignee: China Gezhouba Group Municipal Engineering Co ltd; China Gezhouba Group Co Ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-05-02
Anticipated expiration: 2032-11-03

Abstract

The utility model discloses a foundation pit water collecting well, which comprises a well groove excavated on the surface of a foundation pit, wherein a well body is arranged in the well groove, and the well body is of a cylinder structure surrounded by a plurality of wood piles; a water outlet is arranged at the upper part of the side surface of the well body and is connected with a drainage ditch; a top cover is arranged at the top of the well body; the outer surface of the well body is sleeved with a plurality of annular reinforcing steel hoops which are in interference fit with the outer surface of the well body. The device has solved the foundation ditch sump pit manufacturing procedure in the prior art loaded down with trivial details, and consuming time is longer and the higher problem of cost, has simple structure rationally, and construction convenience can effectively compromise the characteristics of water collection and support intensity.

Description

Pit water collecting well

Technical Field

The utility model belongs to the field of foundation pit water collection, and particularly relates to a foundation pit water collection well.

Background

The drain in the foundation pit and the drain outside the foundation pit are usually by an open drain method, namely a drain ditch and a water collecting well, and common water collecting wells are usually cast-in-situ concrete water collecting wells, brick water collecting wells, iron water collecting tanks and the like; the water collecting well can be constructed by digging a groove firstly, and when the cast-in-situ concrete water collecting well is adopted, the formwork supporting and removing operation is completed in the groove manually; when the brick water collecting well is built, the construction and the cleaning operation are completed in the groove manually; the iron water collecting tank is adopted, and the tank body is accurately placed in the groove by adopting a crane; for example, patent number CN207244641U discloses a movable water collecting well device for deep foundation pit construction, which comprises an outer frame, an inner frame, filter stones and a water pump; the water pump is characterized in that the inner frame is arranged in the center of the outer frame, steel plates with holes are paved at the bottom of the inner frame, the body of the water pump is fixed on the steel plates, and the water outlet of the water pump is connected to the outside of the outer frame through a pipeline; the filter stone is filled in the space between the outer frame and the inner frame; the construction operation of the water collecting well needs complicated steps, and the support pouring needs to be carried out in advance, so that the water collecting well for the foundation pit needs to be designed to solve the problems.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a foundation pit water collecting well, and the foundation pit water collecting well manufacturing device solves the problems of complicated manufacturing procedures, long time consumption and high cost of the foundation pit water collecting well in the prior art, and has the characteristics of simple and reasonable structure, convenience in construction and capability of effectively taking water collecting and supporting strength into consideration.

In order to solve the technical problems, the utility model adopts the following technical scheme: the pit water collecting well comprises a well groove excavated on the surface of a pit, wherein a well body is arranged in the well groove, and the well body is of a cylinder structure surrounded by a plurality of wood piles; a water outlet is arranged at the upper part of the side surface of the well body and is connected with a drainage ditch; the top of the well body is provided with a top cover.

Further, the water outlet adopts a pile pressing or opening mode, so that the filter screen is convenient to install.

Preferably, the bottom ends of a plurality of wood piles of the well body extend into the soil layer at the bottom of the well slot; the inner wall of the well body is coated with a filter layer.

Further, the filter layer is preferably a water permeable geotextile.

Further, the well body is preferably manufactured by pine piles with tail diameters of 10-12 cm; a sealing rubber pad is clamped among the plurality of wood piles for enhancing the sealing performance of the joint.

Preferably, the outer surface of the well body is sleeved with a plurality of annular reinforcing steel hoops which are in interference fit with the outer surface of the well body.

Preferably, a filter screen is connected to the surface of the drain opening.

Further, the filter screen is a stainless steel filter screen.

Preferably, the top cover comprises an annular plate-shaped structure, and the inner wall of the plate-shaped structure is connected with a reinforcing mesh; the plate-shaped structure is connected with the top end of the well body through an iron nail.

Preferably, a crushed stone layer is paved at the bottom of the well groove; the gravel layer is paved with the thickness of 20cm, so that the pumping process of the water pump is avoided, the bottom soil layer is disturbed, and meanwhile, the water pump is prevented from being blocked by the mud.

The beneficial effects of the utility model are as follows:

according to the foundation pit water collecting well provided by the utility model, the backhoe is utilized to excavate a weak soil layer of the well body until the designed well depth is completed, the steel bar hoop is arranged below the inner part of the well body, so that the well body is prevented from being deformed due to soil pressure, the filter screen is arranged at the side of the well body, which is connected with the drainage ditch, so that sundries directly enter the well body to cause siltation, and the cover plate is arranged at the upper part of the well body, so that potential safety hazards are avoided; the well body utilizes the wooden pile surrounding hoop, and has the functions of supporting and collecting water well, and the well wall has certain functions of dewatering and collecting water.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic front view of the present utility model;

the reference numerals in the drawings are: 1 well body, a water outlet 11, a steel bar hoop 2, a filter screen 3 and a top cover 4.

Detailed Description

As shown in fig. 1-2, a foundation pit water collecting well comprises a well groove excavated on the surface of a foundation pit, wherein a well body 1 is arranged in the well groove, and the well body 1 is of a cylinder structure surrounded by a plurality of wood piles; a water outlet 11 is arranged at the upper part of the side surface of the well body 1 and is connected with a drainage ditch; the top of the well body 1 is provided with a top cover 4.

Further, the water outlet 11 adopts a pile pressing or opening mode, so that the filter screen 3 is convenient to install.

Preferably, the bottom ends of the plurality of wood piles of the well body 1 extend into the soil layer at the bottom of the well slot; the inner wall of the well body 1 is coated with a filter layer.

Further, the filter layer is preferably a water permeable geotextile.

Further, the well body 1 is preferably manufactured by pine piles with tail diameters of 10-12 cm; a sealing rubber pad is clamped among the plurality of wood piles for enhancing the sealing performance of the joint.

Preferably, the outer surface of the well body 1 is sleeved with a plurality of annular steel bar hoops 2, and the steel bar hoops 2 are in interference fit with the outer surface of the well body 1.

Preferably, the surface of the water outlet 11 is connected with the filter screen 3.

Further, the filter screen 3 is a stainless steel filter screen 3.

Preferably, the top cover 4 comprises an annular plate-shaped structure, and the inner wall of the plate-shaped structure is connected with a reinforcing mesh; the plate-shaped structure is connected with the top end of the well body 1 through an iron nail.

The working principle of the utility model is as follows:

when the well body 1 is used, a circle of round log piles are formed, a backhoe digs soft soil to the designed well depth and then forms a well, and after the digging is completed, 2-3 steel bar hoops 2 are arranged below the inner part of the well body 1 to strengthen the well body, so that the deformation of the well body 1 caused by soil pressure is avoided; the filter screen 3 is arranged at the side of the well body 1 connected with the drainage ditch so as to prevent sundries from directly entering the well body 1 to cause siltation, and a cover plate (a reinforcing steel mesh is used for protection so as to avoid potential safety hazards) is arranged at the upper part of the well body 1.

Example 2:

outer sump pit: the pine pile of the well body 1 adopts round pine with the tail diameter of 10mm, the length of the pine pile is 4m (the burial depth is 1.5m, the leakage is 0.5 m), the inner diameter of the well body 1 is 2.5m, and the depth is 2 m; the steel bar hoop 2 adopts C12mm three-level steel with the diameter of 2.45-2.5 m; the size of the filter screen 3 is 0.6x1.0 m; the top cover 4 is made of a steel mesh and is paved on the upper part of the well body 1;

collecting well in foundation pit: the pine pile of the well body 1 adopts round pine with the tail diameter of 10mm, the length of the pine pile is 2.5m (the buried depth is 1m, the leakage is 0.5 m), the inner diameter of the well body 1 is 1.5m, and the depth is 1.0m; the steel bar hoop 2 adopts C12mm three-level steel with the diameter of 1.5m; the size of the filter screen 3 is 0.6x1.0 m; the top cover 4 is made of a steel mesh and is paved on the upper part of the well body 1;

the excavation gradient of the water collecting well external longitudinal and transverse drainage ditch is controlled according to 1% -3% so as to ensure smooth water flow; the water seepage in the foundation pit is collected to a small water collecting well by a drainage ditch in the foundation pit, then is pumped and discharged to a drainage ditch on the top of the foundation pit by a water pump, and finally is led and discharged to a large water collecting well by the drainage ditch on the top of the foundation pit for systematic pumping and discharging; surface water or rainwater outside the foundation pit is directly led to a large water collecting well through an outer drainage ditch of the foundation pit; the foundation pit water collecting well disclosed by the utility model has been practically applied to the comprehensive treatment engineering of key tributaries in the river basin crossing of Xijiang pool in Jiangmen, meets the actual requirements of foundation pit drainage, and has the characteristics of good dewatering and water collecting effects, simple construction method, high safety coefficient, low manufacturing cost and the like.

The foregoing embodiments are merely preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without collision. The protection scope of the present utility model is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.

Claims

1. The utility model provides a foundation ditch sump pit, includes the well bowl of foundation ditch surface excavation, its characterized in that: a well body (1) is arranged in the well slot, and the well body (1) is a cylindrical structure surrounded by a plurality of wood piles; a water outlet (11) is arranged at the upper part of the side surface of the well body (1) and is connected with a drainage ditch; the top of the well body (1) is provided with a top cover (4).

2. A pit water collection well as claimed in claim 1, wherein: the bottom ends of the wood piles of the well body (1) extend into the soil layer at the bottom of the well slot; the inner wall of the well body (1) is coated with a filter layer.

3. A pit water collection well as claimed in claim 1, wherein: the outer surface of the well body (1) is sleeved with a plurality of annular reinforcing steel hoops (2), and the reinforcing steel hoops (2) are in interference fit with the outer surface of the well body (1).

4. A pit water collection well as claimed in claim 1, wherein: the surface of the water outlet (11) is connected with a filter screen (3).

5. A pit water collection well as claimed in claim 1, wherein: the top cover (4) comprises an annular plate-shaped structure, and the inner wall of the plate-shaped structure is connected with a reinforcing mesh; the plate-shaped structure is connected with the top end of the well body (1) through iron nails.

6. A pit water collection well as claimed in claim 1, wherein: and paving a gravel layer at the bottom of the well groove.