Sedimentation tank device for foundation pit dewatering engineering

Abstract

The utility model provides a sedimentation tank device for foundation pit dewatering engineering, which belongs to the technical field of foundation pit dewatering construction of house building and municipal construction, and comprises a sedimentation tank, and a slurry pump for discharging sediment out of the sedimentation tank is arranged in the sedimentation tank; a sediment intercepting partition plate for dividing the sedimentation tank into a sedimentation area and a drainage area is arranged in the sedimentation tank; the top of the drainage area is communicated with a municipal drainage system and a water storage pond; in the drainage process of the foundation pit, the sedimentation tank automatically separates water containing silt in the main drainage pipe of the foundation pit, the silt is settled to the bottom in the sedimentation tank, the mud pump is started to discharge the silt, and the water subjected to silt separation enters the municipal drainage system or the water storage tank, so that the silt is effectively prevented from entering the municipal drainage system; and the water storage tank stores water, so that various construction water consumption activities in the main body construction stage are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit dewatering construction in building construction and municipal construction, and particularly relates to a sedimentation tank device for foundation pit dewatering projects. Background Technique

[0002] At present, multiple preparatory works need to be carried out before the excavation of the foundation pit in the field of building construction. Dewatering operations are extremely important for ensuring the safety of the foundation pit. At the same time, during the main structure construction stage, the consumption of water is extremely large. Therefore, effectively treating the water discharged from the foundation pit dewatering, improving the effect of recycled water utilization, and reducing construction costs are common problems that engineering technicians need to continuously optimize in actual construction management.

[0003] In the foundation pit construction of municipal and building projects, to ensure the safety of foundation pit construction, the amount of water discharged from the foundation pit dewatering is large and the sediment content is high. If directly discharged into the nearby municipal drainage system, there is a safety risk of blocking the municipal pipe network system. In addition, during the construction of the main structure and subsequent decoration and ancillary projects, the consumption of construction water is extremely large and the ineffective cost is very high. To meet the requirements of the safe and smooth progress of the foundation pit project and the subsequent main structure, and at the same time effectively control the input of construction costs and reduce the safety risks in the operation area, it is necessary to find a solution on-site. Therefore, in combination with the requirements of safe and civilized construction, making full use of the commonly used materials on the construction site, reasonably arranging them on the construction site, and constructing a dewatering treatment device system to form a sedimentation tank device system for foundation pit dewatering projects to solve the relevant adverse problems faced in on-site construction. Content of the Utility Model

[0004] Aiming at the above problems in the prior art, the utility model aims to provide a sedimentation tank device for foundation pit dewatering projects, which solves the problems that the amount of water discharged from the foundation pit dewatering in municipal and building projects is large and the sediment content is high, and there is a safety risk of blocking the municipal pipe network system if directly discharged into the nearby municipal drainage system.

[0005] In order to achieve the above utility model purpose, the technical scheme adopted by the utility model is as follows:

[0006] A sedimentation tank device for foundation pit dewatering projects is provided, which includes at least one sedimentation tank. A slurry pump is arranged in the sedimentation tank. A slurry discharge pipe is arranged at the outlet end of the slurry pump, and the free end of the slurry discharge pipe is located outside the sedimentation tank. On one side inside the sedimentation tank, a first sediment interception partition board and a second sediment interception partition board are horizontally arranged at intervals. The bottom of the first sediment interception partition board is fixedly and sealingly connected to the inner bottom surface of the sedimentation tank, and there is an interval between the top of the first sediment interception partition board and the top of the sedimentation tank. The top of the second sediment interception partition board is flush with the top of the sedimentation tank, and there is an interval between the bottom of the second sediment interception partition board and the inner bottom surface of the sedimentation tank.

[0007] The first sediment interception partition board and the second sediment interception partition board divide the sedimentation tank into a sedimentation area and a drainage area; the sedimentation area is communicated with the foundation pit drainage main pipe, and the top of the drainage area is communicated with the municipal drainage system and the water storage tank; one side of the water storage tank is communicated with a booster pump station, and the booster pump station is communicated with the building temporary water pipeline.

[0008] The basic principle of the sedimentation tank device for the foundation pit dewatering project in the present utility model is as follows: during the process of draining the foundation pit, the foundation pit drainage main pipe is communicated with the sedimentation tank, and the sedimentation tank automatically separates the water containing sediment in the foundation pit drainage main pipe. The sediment precipitates to the bottom of the sedimentation tank, and the sediment can also be discharged by a slurry pump. The water after sediment separation enters the municipal drainage system or the water storage tank, effectively preventing sediment from entering the municipal drainage system. The water storage tank stores the water, facilitating various construction water use activities in the main construction stage, and solving the problems that the amount of drained water in the foundation pit dewatering of municipal and building construction projects is large and the sediment content is high. Directly discharging it into the nearby municipal drainage system poses a safety risk of blocking the municipal pipe network system.

[0009] Further, as a specific setting method for fixing the first sediment interception partition board and the second sediment interception partition board in the sedimentation tank, a support board is connected to each of the first sediment interception partition board and the second sediment interception partition board, and the free ends of the two support boards are fixedly connected to the inner side wall of the sedimentation tank.

[0010] Further, the number of sedimentation tanks is two. The sedimentation tanks include a primary sedimentation tank and a secondary sedimentation tank. The sedimentation area in the primary sedimentation tank is communicated with the foundation pit drainage main pipe, the drainage area in the primary sedimentation tank is communicated with the sedimentation area in the secondary sedimentation tank through an overflow pipe, and the drainage area in the secondary sedimentation tank is communicated with the municipal drainage system and the water storage tank through an overflow pipe and a drainage pipe respectively.

[0011] Setting the sedimentation tank as a primary sedimentation tank and a secondary sedimentation tank improves the sediment interception effect, effectively intercepts the sediment, prevents the sediment from directly and continuously entering the municipal drainage system and causing siltation, and generates unnecessary rainwater impact risks.

[0012] Further, a drain pipe communicated with the booster pump station is arranged at the bottom of the water storage tank. The water at the bottom of the water storage tank contains a small amount of sediment. The water containing a small amount of sediment is discharged into the booster pump station, and the booster pump station separates the sediment from the water containing a small amount of sediment, facilitating the subsequent construction water use.

[0013] Further, the bottom height of the primary sedimentation tank is higher than the bottom height of the secondary sedimentation tank, and the water outlet end of the primary sedimentation tank is flush with the water inlet end of the secondary sedimentation tank. Utilizing the elevation difference to solve the automatic separation of the water containing sediment in the primary sedimentation tank and the secondary sedimentation tank, and allowing it to flow into the water storage tank and overflow into the municipal drainage system by itself, reducing the use of additional water pumps, reducing construction costs, having strong applicability, and obvious economic benefits.

[0014] Furthermore, the booster pump station includes a booster pool, in which a centrifugal booster pump and a sediment filter box are arranged. The drain pipe is communicated with the inlet end of the centrifugal booster pump, a water outlet pipe is arranged at the outlet end of the centrifugal booster pump, and the free end of the water outlet pipe is arranged in the sediment filter box; the building temporary water pipeline is communicated with the booster pool. The booster pump station separates sediment from the water with a small amount of sediment, facilitating the subsequent water use for construction activities.

[0015] Furthermore, the production materials of the sedimentation tank, the first sediment interception partition board and the second sediment interception partition board are all steel plates, and the water storage tank is a gray sand brick masonry structure, making the sedimentation tank device for the entire foundation pit dewatering project easy to be quickly implemented on site, with a simple structural composition, low construction cost and obvious economic benefits.

[0016] The beneficial effects of the present utility model are as follows: 1. For the sedimentation tank device for the foundation pit dewatering project of the present utility model, during the process of draining water from the foundation pit, the foundation pit drainage main pipe is communicated with the sedimentation tank. The sedimentation tank automatically separates the water containing sediment in the foundation pit drainage main pipe, and the sediment precipitates to the bottom of the sedimentation tank. Moreover, the sediment can also be discharged through the slurry pump, while the water after sediment separation enters the municipal drainage system or the water storage tank, effectively preventing sediment from entering the municipal drainage system. The water storage tank stores the water, facilitating various construction water use activities during the main construction stage, and solving the problem that the amount of drained water from the foundation pit in municipal and building construction projects is large and the sediment content is high. Directly discharging it into the nearby municipal drainage system poses a safety risk of blocking the municipal pipe network system.

[0017] 2. For the sedimentation tank device for the foundation pit dewatering project of the present utility model, all components are selected from common materials on the construction site, making the sedimentation tank device for the entire foundation pit dewatering project easy to be quickly implemented on site, with a simple structural composition, low construction cost and obvious economic benefits. Description of the Drawings

[0018] Figure 1 It is a plan view of a sedimentation tank device for a foundation pit dewatering project.

[0019] Figure 2 It is an elevation view of a sedimentation tank device for a foundation pit dewatering project.

[0020] Wherein, 1. Sedimentation tank; 101. Primary sedimentation tank; 102. Secondary sedimentation tank; 2. Slurry pump; 3. Slurry discharge pipe; 4. First sediment interception partition board; 5. Second sediment interception partition board; 6. Sedimentation area; 7. Drainage area; 8. Foundation pit drainage main pipe; 9. Municipal drainage system; 10. Water storage tank; 11. Booster pump station; 12. Building temporary water pipeline; 13. Support plate; 14. Overflow pipe; 15. Drainage pipe; 16. Drain pipe; 17. Booster pool; 18. Centrifugal booster pump; 19. Sediment filter box. Detailed implementation manners

[0021] The following describes the detailed implementation manners of the present utility model to facilitate those skilled in the art of this technical field to understand the present utility model. However, it should be clear that the present utility model is not limited to the scope of the detailed implementation manners. For those of ordinary skill in the art of this technical field, as long as various changes are within the spirit and scope of the present utility model defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present utility model are within the scope of protection.

[0022] As Figures 1 to 2 shown, in Figure 1 and Figure 2 the arrow directions indicate the water flow direction. The present utility model provides a sedimentation tank 1 device for the foundation pit dewatering project, which includes at least one sedimentation tank 1. A slurry pump 2 is arranged in the sedimentation tank 1. A slurry discharge pipe 3 is arranged at the outlet end of the slurry pump 2, and the free end of the slurry discharge pipe 3 is located outside the sedimentation tank 1. On one side inside the sedimentation tank 1, a first sediment interception partition 4 and a second sediment interception partition 5 are horizontally arranged at intervals. Preferably but not limitedly, a support plate 13 is connected to both the first sediment interception partition 4 and the second sediment interception partition 5, and the free ends of the two support plates 13 are fixedly connected to the inner side wall of the sedimentation tank 1.

[0023] The bottom of the first sediment interception partition 4 is fixedly and sealingly connected to the inner bottom surface of the sedimentation tank 1, and there is a gap between the top of the first sediment interception partition 4 and the top of the sedimentation tank 1; the top of the second sediment interception partition 5 is flush with the top of the sedimentation tank 1, and there is a gap between the bottom of the second sediment interception partition 5 and the inner bottom surface of the sedimentation tank 1.

[0024] The first sediment interception partition 4 and the second sediment interception partition 5 divide the sedimentation tank 1 into a sedimentation area 6 and a drainage area 7; the sedimentation area 6 is communicated with the foundation pit drainage main pipe 8, and the top of the drainage area 7 is communicated with the municipal drainage system 9 and the water storage tank 10; one side of the water storage tank 10 is communicated with a booster pump station 11, and the booster pump station 11 is communicated with the building temporary water pipeline 12.

[0025] During the process of draining the foundation pit, the foundation pit drainage main pipe 8 is communicated with the sedimentation tank 1. The sedimentation tank 1 automatically separates the water containing sediment in the foundation pit drainage main pipe 8. The sediment precipitates to the bottom of the sedimentation tank 1, and the sediment can also be discharged through the slurry pump 2. The water after sediment separation enters the municipal drainage system 9 or the water storage tank 10, effectively preventing sediment from entering the municipal drainage system 9. The water storage tank 10 stores the water, facilitating various construction water use activities during the main construction stage, and solving the problem that the foundation pit dewatering in municipal and building construction projects has a large drainage volume and a high sediment content, and directly discharging it into the nearby municipal drainage system 9 poses a safety risk of blocking the municipal pipe network system.

[0026] Specifically, the number of sedimentation tanks 1 is two. The sedimentation tank 1 includes a primary sedimentation tank 101 and a secondary sedimentation tank 102. The sedimentation area 6 in the primary sedimentation tank 101 is connected to the foundation pit drainage main pipe 8. The drainage area 7 in the primary sedimentation tank 101 is connected to the sedimentation area 6 in the secondary sedimentation tank 102 through an overflow pipe 14. The drainage area 7 in the secondary sedimentation tank 102 is connected to the municipal drainage system 9 and the water storage tank 10 respectively through an overflow pipe 14 and a diversion pipe 15.

[0027] The sedimentation tank 1 is set as the primary sedimentation tank 101 and the secondary sedimentation tank 102, which improves the sediment interception effect, effectively intercepts the sediment, and prevents the sediment from directly entering the municipal drainage system 9 for a long time, causing siltation and generating unnecessary rainwater impact risks.

[0028] The bottom height of the primary sedimentation tank 101 is higher than the bottom height of the secondary sedimentation tank 102, and the water outlet end of the primary sedimentation tank 101 is flush with the water inlet end of the secondary sedimentation tank 102. The elevation difference is used to solve the self-separation of the water containing sediment in the primary sedimentation tank 101 and the secondary sedimentation tank 102, and the water flows into the water storage tank 10 and overflows into the municipal drainage system 9 by itself, reducing the use of additional water pumps, reducing construction costs, having strong applicability, and obvious economic benefits.

[0029] A drain pipe 16 connected to the booster pump station 11 is provided at the bottom of the water storage tank 10. The water at the bottom of the water storage tank 10 contains a small amount of sediment. The water containing a small amount of sediment is discharged into the booster pump station 11. The booster pump station 11 includes a booster pool 17. A centrifugal booster pump 18 and a sediment filter box 19 are arranged in the booster pool 17. The drain pipe 16 is connected to the inlet end of the centrifugal booster pump 18. An outlet pipe is provided at the outlet end of the centrifugal booster pump 18, and the free end of the outlet pipe is arranged in the sediment filter box 19; the building temporary water pipeline 12 is connected to the booster pool 17. The booster pump station 11 separates the sediment from the water containing a small amount of sediment, which is convenient for subsequent construction activities to use water.

[0030] The production materials of the sedimentation tank 1, the first sediment interception partition 4, and the second sediment interception partition 5 are all steel plates, and the water storage tank 10 is a gray sand brick masonry structure, making the sedimentation tank 1 device of the entire foundation pit dewatering project easy to be quickly implemented on site, with a simple structural composition, low construction costs, and obvious economic benefits.

Claims

1. A sedimentation tank device for foundation pit dewatering engineering, characterized in that, It includes at least one sedimentation tank, in which a slurry pump is arranged. The outlet end of the slurry pump is provided with a slurry discharge pipe, and the free end of the slurry discharge pipe is located outside the sedimentation tank. Horizontally and at intervals on one side inside the sedimentation tank, a first sediment interception partition board and a second sediment interception partition board are arranged. The bottom of the first sediment interception partition board is fixedly and sealingly connected to the inner bottom surface of the sedimentation tank, and there is an interval between the top of the first sediment interception partition board and the top of the sedimentation tank. The top of the second sediment interception partition board is flush with the top of the sedimentation tank, and there is an interval between the bottom of the second sediment interception partition board and the inner bottom surface of the sedimentation tank. The first sediment interception partition board and the second sediment interception partition board divide the sedimentation tank into a sedimentation area and a drainage area. The sedimentation area is communicated with the foundation pit drainage main pipe, and the top of the drainage area is communicated with the municipal drainage system and the water storage tank. One side of the water storage tank is communicated with a booster pump station, and the booster pump station is communicated with the building temporary water pipeline.

2. The sedimentation tank device for foundation pit dewatering project according to claim 1, characterized in that A support board is connected to both the first sediment interception partition board and the second sediment interception partition board, and the free ends of the two support boards are fixedly connected to the inner side wall of the sedimentation tank.

3. The sedimentation tank device for foundation pit dewatering project according to claim 2, characterized in that, The number of the sedimentation tanks is two, including a primary sedimentation tank and a secondary sedimentation tank. The sedimentation area in the primary sedimentation tank is communicated with the foundation pit drainage main pipe, and the drainage area in the primary sedimentation tank is communicated with the sedimentation area in the secondary sedimentation tank through an overflow pipe. The drainage area in the secondary sedimentation tank is communicated with the municipal drainage system and the water storage tank through an overflow pipe and a drainage pipe respectively.

4. The sedimentation tank device for foundation pit dewatering project according to claim 3, characterized in that, A drain pipe communicated with the booster pump station is arranged at the bottom of the water storage tank.

5. The sedimentation tank device for foundation pit dewatering project according to claim 4, characterized in that, The bottom height of the primary sedimentation tank is higher than that of the secondary sedimentation tank, and the water outlet end of the primary sedimentation tank is flush with the water inlet end of the secondary sedimentation tank.

6. The sedimentation tank device for foundation pit dewatering project according to claim 5, characterized in that, The booster pump station includes a booster pool, in which a centrifugal booster pump and a sediment filter screen box are arranged. The drain pipe is communicated with the inlet end of the centrifugal booster pump, and the outlet end of the centrifugal booster pump is provided with a water outlet pipe, and the free end of the water outlet pipe is arranged in the sediment filter screen box. The building temporary water pipeline is communicated with the booster pool.

7. The sedimentation tank device for foundation pit dewatering project according to any one of claims 1 to 6, characterized in that, The production materials of the sedimentation tank, the first sediment interception partition board and the second sediment interception partition board are all steel plates, and the water storage tank is a grey sand brick masonry structure.

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