Portable foundation pit drainage system

Abstract

The utility model provides a portable foundation pit drainage system. The portable foundation pit drainage system comprises a plastic sedimentation tank and a plurality of plastic water collecting well assemblies. Every two adjacent plastic water-collecting well assemblies are detachably connected through a drainage pipeline, and the plastic sedimentation tank and the adjacent plastic water-collecting well assembly are detachably connected through a drainage pipeline. The plastic water-collecting well assemblies which are easy to install are adopted for collecting drainage water of dewatering wells around the foundation pit, the adjacent plastic water-collecting well assemblies are connected through the detachable drainage pipes, water in the plastic water-collecting well assemblies can be sequentially drained into the plastic sedimentation tank and then drained into a municipal pipe network, installation and use are easy and convenient, site limitation is avoided, and the construction cost is reduced. Meanwhile, repeated recycling can be achieved, only parts damaged locally need to be replaced, the problems of leakage, long period, terrain consideration and the like due to the fact that conventional bricked water collecting wells and drainage ditches are adopted are solved, meanwhile, generation of construction waste can be reduced, waste of manpower, material resources and resources can be reduced, and the construction cost can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering, and in particular relates to a portable foundation pit drainage system. Background Art

[0002] During construction, when deep foundation pits are excavated in areas with high groundwater levels, groundwater will inevitably seep into the pit due to the pressure differential caused by the severance of the aquifer. Failure to properly dewater the pit will result in flooding, worsening on-site construction conditions, reducing the bearing capacity of the foundation, and potentially causing sand flow, piping, and slope instability. Therefore, effective dewatering and drainage measures are essential to ensure safe foundation pit construction.

[0003] The main purpose and function of foundation pit dewatering is to ensure that the foundation pit can be constructed under dry conditions, preventing problems such as slope instability, foundation sand flow, pit bottom heave, pit bottom piping, and reduced foundation bearing capacity. By taking measures such as well point dewatering, the groundwater level can be effectively lowered, allowing excavation and foundation engineering construction in the foundation pit to be carried out under dry conditions, thereby improving construction quality and safety. The common drainage method uses brick or concrete water collection wells and drainage ditches to centrally treat groundwater. However, the brick method is prone to leakage and has a long construction period. For projects with complex environments, the raw materials are not easy to transport. At the same time, the removal of brickwork or concrete after completion also increases construction waste, affecting the construction period and increasing construction costs, which is not conducive to recycling. Utility Model Content

[0004] The purpose of the utility model is to provide a portable foundation pit drainage system, which can at least solve some of the defects in the prior art.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A portable foundation pit drainage system includes a plastic sedimentation tank arranged between the foundation pit and the municipal pipe network, and a plurality of plastic water collection well assemblies arranged along the circumference of the foundation pit for collecting drainage in precipitation wells; adjacent two plastic water collection well assemblies, as well as the plastic sedimentation tank and its adjacent plastic water collection well assemblies, are detachably connected through drainage pipes.

[0007] Furthermore, the plastic water collection well assembly includes a plastic water collection well and a water collection well bracket for supporting the plastic water collection well; a pipe connection port for connecting to a drainage pipe is provided at the lower portion of the side wall of the plastic water collection well.

[0008] Furthermore, the water collection well bracket is a height-telescopic adjustment structure, and the installation heights of the plurality of plastic water collection wells are sequentially lowered toward the plastic sedimentation tank.

[0009] Furthermore, the water collection well bracket includes a plurality of vertical poles, cross poles and horizontal poles. The plurality of vertical poles and horizontal poles enclose a storage space for accommodating the plastic water collection well. The plurality of cross poles are overlapped on the horizontal poles to support the plastic water collection well.

[0010] Furthermore, the vertical rods and the horizontal rods, as well as the cross rods and the horizontal rods are detachably connected via fixing buckles.

[0011] Furthermore, the drainage pipe is formed by several sections of PVC corrugated pipes detachably connected by metal buckles.

[0012] Furthermore, the above-mentioned portable foundation pit drainage system also includes a pipe support frame for supporting the drainage pipe, and the pipe support frame includes a support base, a telescopically adjustable metal rod and a U-shaped top support. The bottom of the metal rod is fixedly installed on the support base, and the U-shaped top support is fixedly installed on the top of the metal rod. The drainage pipe is supported on the U-shaped top support.

[0013] Furthermore, a plurality of partitions are provided in the plastic sedimentation tank from the water inlet to the water outlet, and the height of each partition decreases successively from the water inlet to the water outlet.

[0014] Furthermore, the partition is a plastic hollow trapezoidal plate.

[0015] Furthermore, the water outlet of the plastic sedimentation tank is provided with a drainage pump and a water level sensor.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The portable foundation pit drainage system of the present invention adopts an easy-to-install plastic water collection well assembly to collect drainage from precipitation wells around the foundation pit, and adjacent plastic water collection well assemblies are connected by a detachable drainage pipe, so that the water in the plastic water collection well assembly can be discharged into the plastic sedimentation tank in sequence, and then discharged into the municipal pipe network. It is simple and convenient to install and use, and is not restricted by the site. At the same time, it can be recycled repeatedly. Only locally damaged parts need to be replaced, avoiding the problems of leakage, long cycle, and terrain considerations in conventional brick-built water collection wells and drainage ditches. At the same time, it can also reduce the generation of construction waste, reduce the waste of manpower, material and resources, and reduce construction costs.

[0018] The present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the installation layout structure of the portable foundation pit drainage system of the utility model;

[0020] Figure 2This is a schematic diagram of the connection of adjacent plastic water collection well components in the portable foundation pit drainage system of the utility model;

[0021] Figure 3 This is a schematic structural diagram of a water collection well support in a portable foundation pit drainage system of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the pipe support frame in the portable foundation pit drainage system of the utility model;

[0023] Figure 5 It is a structural schematic diagram of a plastic sedimentation tank in a portable foundation pit drainage system of the utility model.

[0024] Explanation of the accompanying symbols: 1. Dewatering well; 2. Plastic water collection well assembly; 3. Drainage pipe; 4. Plastic sedimentation tank; 5. Plastic water collection well; 6. Water collection well bracket; 7. PVC corrugated pipe; 8. Metal clip; 9. Pipe connection port; 10. Pipe support frame; 11. Pipe port sealing cover; 12. Vertical pole; 13. Horizontal pole; 14. Cross bar; 15. Fixed clip; 16. Support base; 17. Fixed diagonal pole; 18. Metal pole; 19. U-shaped top support; 20. Partition; 21. Drainage pump; 22. Water level sensor; 23. Insulated wire; 24. Alarm. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features; and in the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0029] like Figure 1 and Figure 2 As shown, this embodiment provides a portable foundation pit drainage system, including a plastic sedimentation tank 4 provided between the foundation pit and the municipal pipe network, and a plurality of plastic water collection well assemblies 2 arranged along the circumference of the foundation pit for collecting drainage in the precipitation well 1; two adjacent plastic water collection well assemblies 2, as well as the plastic sedimentation tank 4 and its adjacent plastic water collection well assembly 1, are detachably connected via a drainage pipe 3. When installing the portable foundation pit drainage system of this embodiment, first determine the location of the municipal pipe network that can be drained, place the plastic sedimentation tank 4 at the nearest distance, and measure the elevation there, and gradually arrange the plastic water collection well assemblies 2 with this location as the lowest point. At the same time, reasonably arrange the number of plastic water collection well assemblies 2 according to the location of the precipitation well 1 around the foundation pit, and drain the water pumped up from the precipitation well 1 into the nearest plastic water collection well assembly 2. In this embodiment, the water collection well and the sedimentation tank are both made of plastic material, and the adjacent plastic water collection well assemblies 2, as well as the plastic sedimentation tank 4 and the plastic water collection well assembly 2 are detachably connected through the drainage pipe 3. This makes the foundation pit drainage system simple and convenient to install and use, not restricted by the site, and can be recycled repeatedly. Only locally damaged parts need to be replaced, avoiding the problems of leakage, long cycle, and terrain considerations in the use of conventional brick-built water collection wells and drainage ditches. At the same time, it can also reduce the generation of construction waste, reduce the waste of manpower, material and resources, and reduce construction costs.

[0030] As a specific implementation method, Figure 2 and Figure 3As shown, the plastic water collection well assembly 2 includes a plastic water collection well 5 and a water collection well bracket 6 for supporting the plastic water collection well 5; a pipe connection port 9 for connecting to the drainage pipe 3 is provided at the lower portion of the side wall of the plastic water collection well 5. The plastic water collection well 5 is made of a plastic container; specifically, in this embodiment, the plastic water collection well 5 adopts a rectangular plastic container of 1500×1000×800mm. Of course, its specific shape and size can be customized on-site according to actual needs; the pipe connection port 9 on the side wall of the plastic water collection well 5 is used to connect to the drainage pipe 3. The pipe connection port 9 is two plastic ports with a diameter of 300mm located in the middle of the 1000×800mm surface of the plastic water collection well 5, 100mm above the bottom. For the plastic water collection well 5 arranged at the upstream of the drainage path, that is, the plastic water collection well 5 with only one side wall connected to the drainage pipe 3, the pipe connection port 9 designed not to be connected to the drainage pipe 3 is sealed with a pipe port sealing cover 11.

[0031] Optimized implementation methods, such as Figure 1 and Figure 2 As shown, the water collection well bracket 6 is designed to be a highly adjustable structure, and the installation height of the plurality of plastic water collection wells 5 is sequentially lowered toward the plastic sedimentation tank 4. In this way, water in the upstream plastic water collection well 5 of the drainage path can flow through the other plastic water collection wells 5 in sequence by gravity and into the downstream plastic sedimentation tank 4, eliminating the need for long drainage pipelines and drainage power devices, greatly saving construction costs and reducing drainage energy consumption.

[0032] In some embodiments, as Figure 3 As shown, the water collection well bracket 6 includes a plurality of vertical poles 12, horizontal poles 14 and horizontal poles 13. The plurality of vertical poles 12 and horizontal poles 13 enclose a storage space for accommodating the plastic water collection well 5. The plurality of horizontal poles 14 are overlapped on the horizontal poles 13 to support the plastic water collection well 5. In this embodiment, the connection between the vertical poles 12, the horizontal poles 14 and the horizontal poles 13 can be an integrated fixed structure to ensure the stability of the water collection well bracket 6, or a detachable connection structure to facilitate transportation, reuse and adjustment according to actual site requirements. In this embodiment, it is preferred that the vertical poles 12 and the horizontal poles 13, as well as the horizontal poles 14 and the horizontal poles 13, are detachably connected by fixing buckles 15.

[0033] Specifically, four 1000 mm long vertical poles 12 and eight 1700 mm long horizontal poles 13 are fixed to form a rectangular parallelepiped frame through fixing buckles 15, and then four 1200 mm long cross poles 14 are fixed to the horizontal poles 13 on the bottom surface of the rectangular parallelepiped frame.

[0034] Optimized, in order to achieve the purpose of telescopic adjustment of the height of the water collection well bracket 6, the lower part of the vertical pole 12 can be detachably connected to the lifting platform, and the height of the vertical pole can be adjusted by lifting and lowering the lifting platform, thereby achieving the purpose of adjusting the height of the water collection well bracket 6; the vertical pole 12 can also be designed as a telescopic pole structure, and the height of the water collection well bracket 6 can be adjusted by utilizing the telescopic structure of the vertical pole 12 itself.

[0035] For the design of the drainage pipe 3, an integrated structural pipe can be made according to the distance between two adjacent plastic water collection wells 5. In order to facilitate transportation, the drainage pipe 3 in this embodiment is preferably designed to be composed of several sections of PVC corrugated pipes 7 that are detachably connected by metal clips 8. In this way, not only can the drainage pipe 3 be disassembled into small sections for convenient transportation, but also different numbers of PVC corrugated pipes 7 can be selected to assemble into the drainage pipe 3 between two plastic water collection wells 5 at different distances, which greatly improves the applicability of the installation of the drainage pipe 3.

[0036] Optional implementation method, in order to ensure the stability of the drainage pipe 3 during application, such as Figure 2 and Figure 4 As shown, the portable foundation pit drainage system further includes a pipe support frame 10 for supporting the drainage pipe 3. The pipe support frame 10 comprises a support base 16, a telescopically adjustable metal rod 18, and a U-shaped support 19. The bottom of the metal rod 18 is fixedly mounted on the support base 16, and the U-shaped support 19 is fixedly mounted on the top of the metal rod 18. The drainage pipe 3 is supported on the U-shaped support 19. During installation, the support base 16 of the pipe support frame 10 is inserted into the soil and fixed. By adjusting the length of the metal rod 18, the U-shaped support 19 can be adjusted to support the drainage pipe 3. Optimally, several pipe support frames 10 can be arranged at intervals along the axis of the drainage pipe 3, and the height of each pipe support frame 10 can be adjusted by adjusting the length of the metal rod 18.

[0037] Specifically, the metal rod 18 can be made of two retractable metal sleeves, and the two metal sleeves can be fixed by anchor bolts. The U-shaped top support 19 is a semicircular structure formed by bending a metal bar, and its semicircular diameter is determined according to the diameter of the drainage pipe to be supported. For example, when the diameter of the drainage pipe 3 is 300mm, the diameter of the U-shaped top support 19 can be designed to be 350mm, and the bottom of the U-shaped top support 19 is welded to the top of the metal rod 18. The support base 16 is a base welded with steel bars that can be inserted into the soil and is welded to the bottom end of the metal rod 18. Preferably, a fixed diagonal rod 17 can be set between the support base 16 and the lower part of the metal rod 18 to ensure the stability of the pipe support frame 10.

[0038] Optional implementations, such as Figure 5As shown, the plastic sedimentation tank 4 is provided with a plurality of partitions 20 spaced from the water inlet to the water outlet, and the height of each partition 20 decreases from the water inlet to the water outlet. In this embodiment, the interior of the plastic sedimentation tank 4 is divided into multiple sedimentation tanks by the partitions 20, so that turbid well water is precipitated in multiple stages, thereby improving the sedimentation and purification effect of the foundation pit drainage.

[0039] Specifically, the water inlet of the plastic sedimentation tank 4 is a plastic pipe welded above the plastic sedimentation tank. The partition 20 adopts a plastic hollow trapezoidal plate, and its trapezoidal wide bottom surface is welded to the bottom of the plastic sedimentation tank 4 to ensure the stability of the partition 20 installation.

[0040] Optionally, a drainage pump 21 is provided at the water outlet of the plastic sedimentation tank 4, and the drainage pump 21 is used to discharge the purified water in the plastic sedimentation tank 4 to the licensed municipal pipe network; preferably, a water level sensor 22 is also provided on one side of the water outlet of the plastic sedimentation tank 4. Specifically, the water level sensor 22 is fixed on the last sedimentation tank of the plastic sedimentation tank 4. The water level sensor 22 is connected to the external alarm 24 through an insulated wire 23. The alarm 24 is a device that can emit red flashes and sounds. When the drainage volume is large, the water level of the last sedimentation tank in the plastic sedimentation tank 4 reaches the water level sensor 22, which will trigger the alarm 24 to alarm and remind workers to increase drainage.

[0041] To sum up, the portable foundation pit drainage system provided by the utility model adopts an easy-to-install plastic water collection well assembly to collect drainage from the precipitation wells around the foundation pit, and adjacent plastic water collection well assemblies are connected by a detachable drainage pipe, so that the water in the plastic water collection well assembly can be discharged into the plastic sedimentation tank in sequence, and then discharged into the municipal pipeline network. It is simple and convenient to install and use, and is not restricted by the site. At the same time, it can be recycled repeatedly. Only locally damaged parts need to be replaced, avoiding the problems of leakage, long cycle, and terrain considerations in conventional brick-built water collection wells and drainage ditches. At the same time, it can also reduce the generation of construction waste, reduce the waste of manpower, material and resources, and reduce construction costs.

[0042] The above examples are merely illustrative of the present invention and do not limit the scope of protection of the present invention. Any design that is identical or similar to the present invention falls within the scope of protection of the present invention.

Claims

1. A portable foundation pit drainage system, characterized by: It includes a plastic sedimentation tank arranged between the foundation pit and the municipal pipeline network, and several plastic water collection well assemblies arranged along the circumference of the foundation pit for collecting drainage in the precipitation well; two adjacent plastic water collection well assemblies, as well as the plastic sedimentation tank and its adjacent plastic water collection well assemblies are detachably connected through drainage pipes.

2. The portable foundation pit drainage system according to claim 1, characterized in that: The plastic water collection well assembly comprises a plastic water collection well and a water collection well bracket for supporting the plastic water collection well; a pipe connection port for connecting to a drainage pipe is provided at the lower part of the side wall of the plastic water collection well.

3. The portable foundation pit drainage system according to claim 2, characterized in that: The water collection well bracket is a height-telescopic adjustment structure, and the installation heights of the plurality of plastic water collection wells are sequentially lowered toward the plastic sedimentation tank.

4. The portable foundation pit drainage system according to claim 2, characterized in that: The water collection well bracket includes a plurality of vertical poles, cross poles and horizontal poles. The plurality of vertical poles and horizontal poles enclose a storage space for accommodating the plastic water collection well. The plurality of cross poles are overlapped on the horizontal poles to support the plastic water collection well.

5. The portable foundation pit drainage system according to claim 4, characterized in that: The vertical rods and the horizontal rods, as well as the cross rods and the horizontal rods are detachably connected via fixing buckles.

6. The portable foundation pit drainage system according to claim 1, characterized in that: The drainage pipe is formed by several sections of PVC corrugated pipes being detachably connected by metal buckles.

7. The portable foundation pit drainage system according to claim 1 or 6, characterized in that: It also includes a pipe support frame for supporting the drainage pipe, the pipe support frame includes a support base, a telescopically adjustable metal rod and a U-shaped top support, the bottom of the metal rod is fixedly installed on the support base, the U-shaped top support is fixedly installed on the top of the metal rod, and the drainage pipe is supported on the U-shaped top support.

8. The portable foundation pit drainage system according to claim 1, characterized in that: A plurality of partitions are arranged in the plastic sedimentation tank from the water inlet end to the water outlet end, and the height of each partition decreases in sequence from the water inlet end to the water outlet end.

9. The portable foundation pit drainage system according to claim 8, characterized in that: The partition is a plastic hollow trapezoidal plate.

10. The portable foundation pit drainage system according to claim 1, characterized in that: The water outlet of the plastic sedimentation tank is provided with a drainage pump and a water level sensor.

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