Dynamic foundation pit drainage device combined with water level sensor

Abstract

The utility model provides a kind of dynamic foundation pit pumping and draining device combined with water level sensor, belong to foundation pit construction field, for dynamic foundation pit pumping and draining, it includes: along the periphery of several well pipes of foundation pit distribution, water level sensor, ground pipeline and drain pipe, the inside of each well pipe is provided with water level sensor, water level sensor measures the water level inside well pipe, ground pipeline connects several well pipes together, pump station is installed on drain pipe, one end of drain pipe is connected with ground pipeline, the other end of drain pipe is set at drain ditch place.The utility model, by designing well pipe, water level sensor, groundwater can be monitored in real time, provide data support for pump station, groundwater in well pipe inside is pumped to drain ditch place by ground pipeline and drain pipe by pump station work, compared with traditional groundwater pumping and draining mode;The application has the advantages of real-time monitoring, fast response, reduces the foundation pit safety accident caused by groundwater discharging not in time.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit construction operations, specifically a dynamic foundation pit pumping and drainage device combined with a water level sensor. Background Technology

[0002] With the development of industrial construction, groundwater level control is a key aspect of ensuring the stability of foundation pits during construction.

[0003] Traditional pumping and drainage methods mainly rely on manual experience or pumping equipment with fixed thresholds, which have response lags. Manual monitoring of water levels requires frequent inspections, making it difficult to detect sudden changes in rainfall or seepage (such as piping or rainstorm infiltration) in a timely manner. This leads to delays in drainage commands and may cause instability of the foundation pit slope or water inrush at the bottom. Therefore, this utility model provides a dynamic foundation pit pumping and drainage device that combines a water level sensor. Utility Model Content

[0004] To address the problems of traditional pumping and drainage methods that rely primarily on manual experience or fixed threshold pumping equipment, which suffer from response delays, require frequent manual water level monitoring, and struggle to detect sudden rainfall or seepage changes (such as piping or rainstorm infiltration) in a timely manner, leading to delayed drainage commands and potentially causing slope instability or bottom water inrush, this invention provides a dynamic foundation pit pumping and drainage device that incorporates a water level sensor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dynamic foundation pit pumping and drainage device incorporating a water level sensor, comprising:

[0007] Several well pipes are distributed along the periphery of the foundation pit, and a water level sensor is installed on the inner side of each well pipe;

[0008] A ground pipe and a drainage pipe that connect several well pipes together, with a pump station installed on the drainage pipe. One end of the drainage pipe is connected to the ground pipe, and the other end of the drainage pipe is located at a drainage ditch.

[0009] As a further description of the above technical solution:

[0010] At least one set of valve pipe assemblies is connected to the ground pipeline.

[0011] As a further description of the above technical solution:

[0012] A filter section is fixedly installed at the bottom of the well casing.

[0013] As a further description of the above technical solution:

[0014] Several well casings are evenly distributed around the perimeter and diagonal areas of the pit.

[0015] As a further description of the above technical solution:

[0016] The well casing includes:

[0017] Vertical tube body;

[0018] A tee connector is fixedly connected to the top of the vertical pipe body. The side connector of the tee connector is fixedly connected to a connector cavity, and one end of the connector cavity is connected to the ground pipe. The end of the connector cavity located inside the tee connector is connected to several inner pipes, which extend into the vertical pipe body.

[0019] The top of the three-way connector is fixedly connected to a top cover, and a hollow tube is fixedly connected to the center of the top cover. The water level sensor is fixedly installed at the bottom of the hollow tube.

[0020] As a further description of the above technical solution:

[0021] Several of the inner tubes are located outside the water level sensor.

[0022] As a further description of the above technical solution:

[0023] The top cover includes:

[0024] The cover body is fixedly connected to the top of the tee connector, and a threaded interface is provided at the center of the top of the cover body, and a side hole is provided on the side of the threaded interface.

[0025] The cover and the extrusion block are located inside the side hole. The cover is threaded onto the threaded interface. A set of wedge-shaped surfaces are provided on the inner side of the cover and the outer side of the extrusion block.

[0026] The beneficial effects of this utility model are:

[0027] This invention, through the design of well pipes and water level sensors, can monitor groundwater levels in real time, providing data support to pumping stations. The pumping station pumps the groundwater inside the well pipes through surface pipes and drainage pipes to the drainage ditch. Compared with traditional groundwater pumping methods, this invention has the advantages of real-time monitoring and rapid response, reducing the risk of foundation pit safety accidents caused by untimely groundwater discharge. Attached Figure Description

[0028] To more clearly illustrate a dynamic foundation pit pumping and drainage device incorporating a water level sensor, the following figures are shown;

[0029] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0030] Figure 2 This is a three-dimensional schematic diagram of the well pipe of this utility model;

[0031] Figure 3 This is a cross-sectional view of the well casing of this utility model;

[0032] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0033] The labels in the attached diagram;

[0034] 1. Surface pipe; 2. Well pipe; 201. Vertical pipe body; 202. T-joint; 203. Joint cavity; 204. Inner pipe; 205. Top cover; 2051. Cover body; 2052. Threaded interface; 2053. Side hole; 2054. Extrusion block; 2055. Cover; 206. Hollow pipe; 3. Filter pipe section; 4. Pump station; 5. Drainage pipe; 6. Drainage ditch; 7. Valve pipe assembly; 8. Water level sensor. Detailed Implementation

[0035] Please refer to the attached document. Figures 1-4 This application illustrates a dynamic foundation pit pumping and drainage device combined with a water level sensor, which is used for dynamic foundation pit pumping and drainage. Specifically, it includes: several well pipes 2 distributed along the periphery of the foundation pit, a water level sensor 8, a ground pipe 1, and a drainage pipe 5.

[0036] Each well pipe 2 is equipped with a water level sensor 8 on its inner side. The water level sensor 8 measures the water level inside the well pipe 2, thereby reflecting the amount of groundwater. The ground pipe 1 connects several well pipes 2 together. A pump station 4 is installed on the drainage pipe 5. One end of the drainage pipe 5 is connected to the ground pipe 1, and the other end of the drainage pipe 5 is set at the drainage ditch 6 (the bottom slope of the ditch is ≥3%).

[0037] When in use, the signal output terminal of the water level sensor 8 is connected to the control terminal of the pump station 4. Based on the real-time detection of the water level inside the well pipe 2 by the water level sensor 8, that is, the amount of groundwater is monitored. When the preset threshold is reached, the pump station 4 starts working and pumps the groundwater inside the well pipe 2 through the ground pipe 1 and the drainage pipe 5 to the drainage ditch 6.

[0038] In one embodiment, in order to extract groundwater evenly, several well pipes 2 are evenly arranged around the foundation pit and in the diagonal areas; for example, if four well pipes 2 are arranged, they can be distributed at the four corners of the foundation pit; if six well pipes 2 are arranged, they can be distributed at the four corners of the foundation pit and in the middle position along the long side.

[0039] In one embodiment, at least one set of valve pipe assembly 7 is connected to the ground pipe 1. The valve pipe assembly 7 is a structure composed of a pipe body and a valve body. When the pump station 4 is not working, the valve body can be opened to allow external air to enter the ground pipe 1 and the well pipe 2, avoiding the problem of excessive deviation between the water level inside the well pipe 2 and the groundwater level due to the formation of negative pressure / high pressure inside. When the pump station 4 is working, the valve body should be closed in advance (by manual or by controlling the valve to close automatically based on the control signal of the pump station 4).

[0040] In one embodiment, a filter section 3 is fixedly installed at the bottom of the well pipe 2. The filter section 3 is a stainless steel filter screen to reduce the entry of mud and sand into the well pipe 2, which could cause blockage or damage to the pump station 4.

[0041] In one embodiment, the well pipe 2 includes: a vertical pipe body 201, a tee connector 202 fixedly connected to the top of the vertical pipe body 201, a connector cavity 203, an inner pipe 204, a top cover 205, and a hollow pipe 206.

[0042] The side connector of the tee connector 202 is fixedly connected to the connector cavity 203, and one end of the connector cavity 203 is connected to the ground pipe 1. The end of the connector cavity 203 located inside the tee connector 202 is connected to several inner tubes 204. The inner tubes 204 are thin flexible tubes that extend into the vertical pipe body 201. The top of the tee connector 202 is fixedly connected to the top cover 205. The center of the top cover 205 is fixedly connected to the hollow tube 206. The hollow tube 206 is used for threading the water level sensor 8. The water level sensor 8 is fixedly installed at the bottom end of the hollow tube 206.

[0043] The bottom end of the inner tube 204 is located in the groundwater, and several inner tubes 204 are located outside the water level sensor 8, so that the inner tubes 204 do not interfere with the operation of the water level sensor 8. When in use, the groundwater flows along the inner tube 204 into the joint cavity 203, and then is discharged through the ground pipe 1 and the drainage pipe 5.

[0044] In one embodiment, the top cover 205 includes: a cover body 2051, a snap cover 2055, and a pressing block 2054.

[0045] The top of the cover 2051 is fixedly connected to the top of the tee connector 202, and a threaded interface 2052 is provided at the top center of the cover 2051. A side hole 2053 is provided on the side of the threaded interface 2052. The extrusion block 2054 is located inside the side hole 2053. Multiple sets of extrusion blocks 2054 and side holes 2053 can be arranged in a ring array. The cover 2055 is threaded onto the threaded interface 2052. A set of wedge-shaped surfaces is provided on the inner side of the cover 2055 and the outer side of the extrusion block 2054.

[0046] When in use, place the hollow tube 206 inside the threaded interface 2052, adjust the height of the hollow tube 206 up and down, control the water level sensor 8 to be about 0.5M underground, then install the cover 2055, the bottom of the cover 2055 presses the pressing block 2054, so that the pressing block 2054 presses the hollow tube 206 inward, thereby fixing the hollow tube 206.

[0047] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0048] It should be understood that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. This invention is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A dynamic foundation pit pumping and drainage device incorporating a water level sensor, characterized in that, include: Several well pipes (2) are distributed along the periphery of the foundation pit, and a water level sensor (8) is installed on the inner side of each well pipe (2); A ground pipe (1) connecting several well pipes (2) together and a drainage pipe (5), a pump station (4) is installed on the drainage pipe (5), one end of the drainage pipe (5) is connected to the ground pipe (1), and the other end of the drainage pipe (5) is set at the drainage ditch (6).

2. The dynamic foundation pit pumping and drainage device combined with a water level sensor according to claim 1, characterized in that: At least one set of valve pipe assemblies (7) are connected to the ground pipe (1).

3. The dynamic foundation pit pumping and drainage device combined with a water level sensor according to claim 1, characterized in that: A filter pipe section (3) is fixedly installed at the bottom of the well pipe (2).

4. A dynamic foundation pit pumping and drainage device combined with a water level sensor according to claim 1, characterized in that: Several well pipes (2) are evenly arranged around the perimeter and diagonal areas of the pit.

5. A dynamic foundation pit pumping and drainage device incorporating a water level sensor according to any one of claims 1 to 4, characterized in that, The well casing (2) includes: Vertical tube body (201); A tee connector (202) is fixedly connected to the top of the vertical pipe body (201). A connector cavity (203) is fixedly connected to the side connector of the tee connector (202). One end of the connector cavity (203) is connected to the ground pipe (1). A plurality of inner pipes (204) are connected to the end of the connector cavity (203) located inside the tee connector (202). The inner pipes (204) extend into the vertical pipe body (201). The top of the three-way connector (202) is fixedly connected to a top cover (205), and the center of the top cover (205) is fixedly connected to a hollow tube (206). The water level sensor (8) is fixedly installed at the bottom of the hollow tube (206).

6. A dynamic foundation pit pumping and drainage device combined with a water level sensor according to claim 5, characterized in that: Several of the inner tubes (204) are located outside the water level sensor (8).

7. A dynamic foundation pit pumping and drainage device incorporating a water level sensor according to claim 5, characterized in that, The top cover (205) includes: The cover (2051) is fixedly connected to the top of the three-way connector (202), and a threaded interface (2052) is provided at the center of the top of the cover (2051), and a side hole (2053) is provided on the side of the threaded interface (2052). The cover (2055) and the extrusion block (2054) are located inside the side hole (2053). The cover (2055) is threaded onto the threaded interface (2052). A set of wedge-shaped surfaces are provided on the inner side of the cover (2055) and the outer side of the extrusion block (2054).

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