Modularized foundation pit water collecting well

Abstract

The modularized foundation pit water collecting well comprises a water collecting tank with an opening in the top, a plurality of water passing holes evenly distributed in the side wall and the bottom of the water collecting tank, hanging rings welded to the upper ends of the two opposite side walls of the water collecting tank, permeable geotextile evenly distributed on the bottom and the inner side wall of the inner side of the water collecting tank, and broken stones filled in the water collecting tank. A water outlet in the top of the submersible pump is connected with a drainage pipe, and the drainage pipe penetrates out of the top of the gravel. The water collecting tank comprises a bottom plate and four side plates, and the bottom plate and the four side plates are welded to form a tank body structure. The device is easy to manufacture, convenient to install, high in working efficiency, low in cost and high in practicability; silt in water is filtered through the permeable geotextile and the gravel, and abrasion to the submersible pump can be reduced; and turnover use can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit dewatering, in particular to a modular foundation pit sump well. Background Technique

[0002] In the construction of housing construction projects and infrastructure projects, it is often necessary to excavate foundation pits. Dewatering of groundwater is an unavoidable problem in foundation pit construction. Foundation pit dewatering is divided into two methods: dewatering well dewatering and catchment and open drainage. For catchment and open drainage, usually the water flow is converged into the sump well and then pumped out by a water pump.

[0003] The existing forms of sump wells include cast-in-situ concrete wells, brick wells, etc., and the construction is relatively complex and the labor cost is high. For example, for a cast-in-situ concrete well, formwork support and removal need to be completed in the trench, and for a brick well, manual masonry and plastering operations are required, which increase the construction cost and affect the construction efficiency. In addition, during the use of the existing sump well, sediment will flow into the sump well along with the water flow, which is easy to block and wear the water pump. Content of the Utility Model

[0004] The utility model aims to solve the deficiencies of the existing technology, simplify the construction process, improve the construction efficiency, reduce the construction cost, and ensure the efficient operation of the foundation pit drainage system, and provides a modular foundation pit sump well.

[0005] In order to achieve the above object, the utility model adopts the following technical solutions:

[0006] A modular foundation pit sump well includes a sump tank with an open top. A plurality of water passing holes are uniformly arranged on the side wall and the bottom of the sump tank. Hoisting rings are welded at the upper ends of the opposite side walls of the sump tank. Geotextile for water penetration is uniformly arranged on the inner bottom and the inner side wall of the sump tank. The sump tank is filled with gravel, and a submersible pump is buried in the gravel. The water outlet at the top of the submersible pump is connected to a drain pipe, and the drain pipe penetrates through the top of the gravel.

[0007] The sump tank includes a bottom plate and four side plates, and the bottom plate and the four side plates are welded to form a box structure.

[0008] The bottom plate and the four side plates are all rectangular structures.

[0009] The hoisting ring is an n-shaped structure.

[0010] The beneficial effects of the utility model are: the utility model is simple to manufacture, convenient to install, high in work efficiency, low in cost and strong in practicability; the sediment in the water is filtered through the geotextile for water penetration and the gravel, and the wear on the submersible pump can be reduced; it can be used repeatedly. Description of the Drawings

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic structural view of the bottom plate;

[0013] Figure 3 It is a schematic structural view of the side plate;

[0014] In the figure: 1 - water collecting tank; 2 - water passing hole; 3 - lifting ring; 4 - permeable geotextile; 5 - gravel; 6 - submersible pump; 7 - drain pipe;

[0015] 11 - bottom plate; 12 - side plate;

[0016] The following will be described in detail with reference to the embodiments of the present invention and the accompanying drawings. Specific embodiments

[0017] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention. In the following paragraphs, the present invention will be described more specifically by way of example with reference to the accompanying drawings. The advantages and features of the present invention will be clearer according to the following description. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0018] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] A modular foundation pit sump, as Figure 1 shown, includes a water collecting tank 1 with an open top. The water collecting tank 1 includes a bottom plate 11 and four side plates 12. The bottom plate 11 and the four side plates 12 are welded to form a box structure. The bottom plate 11 and the four side plates 12 are both rectangular steel plates.

[0022] A number of water passing holes 2 are evenly distributed on the bottom plate 11 and the four side plates 12 of the water collecting tank 1, as Figure 2 、 Figure 3 shown.

[0023] Lifting rings 3 are welded to the upper ends of the opposite side walls of the water collecting tank 1. The lifting rings 3 are of an n-shaped structure.

[0024] Geotextile fabrics 4 permeable to water and soil are evenly distributed on the inner bottom and the inner side walls of the water collecting tank 1. The inside of the water collecting tank 1 is filled with gravel 5. A submersible pump 6 is buried in the gravel 5. The top water outlet of the submersible pump 6 is connected to a drain pipe 7, and the drain pipe 7 penetrates through the top of the gravel 5.

[0025] The drain pipe 7 is made of a rigid pipe to prevent it from being squeezed by the gravel 5 and unable to expand, which affects the water discharge.

[0026] The modularized catch pit of the present utility model is first processed on the ground and then hoisted to the designated position in the foundation pit by a truck crane or a tower crane. When burying the catch pit, the top of the water collecting tank 1 should be slightly higher than the bottom of the foundation pit to prevent sediment at the bottom of the pit from directly entering the catch pit from the top.

[0027] The present utility model has the characteristics of simple manufacturing, convenient installation, high working efficiency, low cost, strong practicability, etc.

[0028] The present utility model filters the sediment in the water through the geotextile fabrics 4 permeable to water and soil and the gravel 5, which can reduce the wear on the submersible pump 6.

[0029] The present utility model can be reused, especially suitable for use in projects with multiple foundation pits. After the construction operation of one foundation pit is completed, the catch pit can be hoisted out of the foundation pit and transported to the next foundation pit for continued use.

[0030] The above has made an exemplary description of the present utility model in conjunction with the drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various improvements are made by adopting the method concept and technical solution of the present utility model, or directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A modular foundation pit water collection well, characterized in that: The invention comprises a water collecting box (1) with an opening at the top, a plurality of water holes (2) are evenly distributed on the side walls and the bottom of the water collecting box (1), lifting rings (3) are welded to the upper ends of the two opposite side walls of the water collecting box (1), a permeable geotextile (4) is evenly distributed on the inner bottom and inner wall of the water collecting box (1), the interior of the water collecting box (1) is filled with gravel (5), a submersible pump (6) is buried in the gravel (5), the top water outlet of the submersible pump (6) is connected to a drainage pipe (7), and the drainage pipe (7) passes through the top of the gravel (5).

2. A modular foundation pit water collection well according to claim 1, characterized in that: The water collecting box (1) comprises a bottom plate (11) and four side plates (12), and the bottom plate (11) and the four side plates (12) are welded to form a box structure.

3. A modular foundation pit water collection well according to claim 2, characterized in that: The bottom plate (11) and the four side plates (12) are all rectangular structures.

4. A modular foundation pit water collection well according to claim 3, characterized in that: The lifting ring (3) is an n-shaped structure.

Images