Basement retaining wall drainage and pressure relief system

Abstract

The present invention discloses a basement retaining wall drainage and pressure relief system, comprising a basement separated by a retaining wall and a backfill pit excavated on the original earthwork. The backfill pit is provided with evenly distributed vertical water collecting pipes, each with a filter cap at its outlet. The bottoms of the collecting pipes are interconnected and connected to a drainage pipe leading out of the backfill pit. A drainage pump is provided on the drainage pipe in the backfill pit. High and low water level sensors are provided in the backfill pit to monitor the water levels in each collecting pipe. The high and low water level sensors are connected to a controller located outside the backfill pit via corresponding sensor circuits. The controller is connected to the drainage pump via a control circuit. The present invention eliminates the traditional design of a water collection tank in the basement followed by drainage by a water pump, effectively balancing the water pressure on the retaining wall and saving engineering investment.

Description

Technical Field

[0001] The invention relates to civil engineering construction technology, in particular to a basement retaining wall drainage and pressure reduction system. Background Art

[0002] Due to the large amount of groundwater accumulated around the basement retaining wall, the accumulated water seeps through the retaining wall and causes the basement wall to become damp and even water to accumulate indoors in the basement, thus affecting the normal production, work, living and storage environment indoors in the basement.

[0003] In order to solve practical problems, the utility model patent with authorization announcement number CN 204715385U proposes a "water collection structure for groundwater around the basement retaining wall". In the technical solution of this patent, a water collection well is set on the basement floor inside the basement retaining wall, and a gravel drainage ditch is set at the bottom of the outer side of the basement retaining wall. A water collection pipe connecting the water collection well and the drainage ditch is pre-buried at the bottom of the basement retaining wall. Backfill soil is buried between the outer side of the basement retaining wall and the original earth of the basement. An automatic water pump is installed in the water collection well, and the automatic water pump is connected to the external water network through a drainage pipe.

[0004] This utility model patent sets a gravel drainage ditch on the outside of the basement retaining wall and a water collection well on the inside of the basement retaining wall, which increases the difficulty and cost of civil construction. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to propose a basement retaining wall drainage and decompression system that is easy to implement.

[0006] The basement retaining wall drainage and pressure relief system that can solve the above technical problems includes a basement separated by a retaining wall and a backfill pit dug on the original earth. The difference is:

[0007] 1. The backfill pit is provided with evenly distributed vertical water collecting pipes, the pipe openings of each water collecting pipe are provided with a water filter cover, the bottoms of each water collecting pipe are interconnected and connected to the drainage pipe leading out of the backfill pit, and a drainage pump is provided on the drainage pipe in the backfill pit.

[0008] 2. A high water level sensor and a low water level sensor are provided in the backfill pit to monitor the high and low water levels in each water collecting pipe. The high water level sensor and the low water level sensor are connected to a controller provided outside the backfill pit through corresponding sensor lines, and the controller is connected to the drainage pump through a control line.

[0009] Based on the principle of communicating vessels, the high water level sensor and the water level sensor can be installed at the pipe mouth and the pipe bottom of the same water collecting pipe.

[0010] In order to drain the water in the water collecting pipe, the drainage pump and the low water level sensor are arranged at the same height.

[0011] Conventionally, the water collecting pipes are arranged in a matrix of rows and columns.

[0012] Conventionally, a filter is provided on the drain pipe.

[0013] Beneficial effects of the present invention:

[0014] The basement retaining wall drainage and decompression system of the present invention can reduce the structure of designing a water collection pool in the basement and then discharging the water by a water pump in traditional technology, can effectively balance the water level pressure of the retaining wall, and also saves engineering investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of an embodiment of the present invention.

[0016] Figure 2 for Figure 1 A-direction view in.

[0017] Drawing number identification: 1. Retaining wall; 2. Basement; 3. Backfill pit; 4. Water collecting pipe; 5. Drain pipe; 6. Drain pump; 7. High water level sensor; 8. Low water level sensor; 9. Controller; 10. Filter. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0019] The basement retaining wall drainage and decompression system of the present invention comprises a basement 2 separated by a retaining wall 1 and a backfill pit 3 dug on the original earthwork, wherein a drainage and decompression unit is provided in the backfill pit 3. Figure 1 shown.

[0020] The drainage pressure reducing unit includes dense water collecting pipes 4 (vertically arranged) arranged in a matrix form of rows and columns, the pipe mouth of each water collecting pipe 4 is provided with a water filter cover to block the sediment, the bottoms of each water collecting pipe 4 are connected to each other through corresponding transverse pipes to form a connecting pipe array, a water collecting pipe 4 is selected from the connecting pipe array, a high water level sensor 7 is provided at the pipe mouth of the water collecting pipe 4, a low water level sensor 8 is provided at the pipe bottom of the water collecting pipe 4 and connected to the water inlet of the horizontal section of the drainage pipe 5, the horizontal section of the drainage pipe 5 The outlet of the vertical section of the drain pipe 5 is connected to the water inlet of the drainage pump 6, the water inlet of the vertical section of the drain pipe 5 is connected to the water outlet of the drainage pump 6, and the water outlet of the vertical section of the drain pipe 5 is upwardly passed out of the backfill pit 3. The high water level sensor 7 and the low water level sensor 8 are respectively connected to the controller 9 arranged outside the backfill pit 3 through corresponding sensor circuits. The controller 9 is connected to the drainage pump 6 through a control circuit. The drainage pump 6 is connected to the power line leading out of the backfill pit 3. A filter 10 is provided on the horizontal section of the drain pipe 5. Figure 1 、 Figure 2 shown.

[0021] The backfill pit 3 is backfilled with soil excavated from the original earthwork and the connecting pipe array, high water level sensor 7, low water level sensor 8, filter 10, drainage pump 6, the horizontal section of the drainage pipe 5 and the middle and lower part of the vertical section of the drainage pipe 5 are buried therein. Figure 1 、 Figure 2 shown.

[0022] The scheme of drainage and decompression of the present invention is:

[0023] 1. Most of the underground water outside the retaining wall 1 is collected through the interconnected pipe array composed of the water collecting pipes 4.

[0024] 2. When the accumulated water in each water collecting pipe 4 is full, that is, the water level in each water collecting pipe 4 reaches the high water level and triggers the high water level sensor 7, the high water level sensor 7 transmits the high water level sensing signal to the controller 9, and the controller 9 immediately starts the drainage pump 6 after receiving the high water level signal. The drainage pump 6 pumps the accumulated water in the connecting pipe array out through the drainage pipe 5 and backfills the soil pit 3.

[0025] 3. During the pumping and drainage process of the drain pipe 5, the water level in each collecting pipe 4 gradually decreases. When the water level drops to a low water level, the low water level sensor 8 is triggered, and the low water level sensor 8 transmits the low water level signal to the controller 9. After receiving the low water level signal, the controller 9 immediately turns off the drainage pump 6, and the drain pipe 5 stops pumping the accumulated water out of the backfill pit 3.

[0026] 4. The interconnected pipe array formed by each water collecting pipe 4 recollects the underground water outside the retaining wall 1 and continuously repeats steps 2 and 3, thereby automatically completing the drainage operation of the underground water, reducing the pressure of the underground water on the retaining wall 1, reducing the penetration of the underground water into the retaining wall 1 and protecting the indoor environment of the basement 2.

Claims

1. A basement retaining wall drainage and pressure relief system, comprising a basement (2) separated by a retaining wall (1) and a backfill pit (3) dug on the original earthwork, characterized in that: The backfill pit (3) is provided with dense vertical water collecting pipes (4), the pipe openings of each water collecting pipe (4) are provided with a water filter cover, the pipe bottoms of each water collecting pipe (4) are interconnected and connected to a drainage pipe (5) leading out of the backfill pit (3), and a drainage pump (6) is provided on the drainage pipe (5) in the backfill pit (3); a high water level sensor (7) and a low water level sensor (8) for monitoring the high and low water levels in each water collecting pipe (4) are provided in the backfill pit (3), the high water level sensor (7) and the low water level sensor (8) are respectively connected to a controller (9) provided outside the backfill pit (3) through corresponding sensing lines, and the controller (9) is connected to the drainage pump (6) through a control line; The high water level sensor (7) and the low water level sensor (8) are arranged at the pipe mouth and the pipe bottom of the same water collecting pipe (4); The drainage pump (6) and the low water level sensor (8) are at the same height; The water collecting pipes (4) are arranged in a matrix of rows and columns; A filter (10) is provided on the drainage pipe (5).

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