Row light well point dewatering construction method

Abstract

The invention discloses a row light well point dewatering construction method which specifically comprises the following steps: step 1, drilling a well point part determined by measurement in a foundation pit according to a design drawing, punching and embedding a plurality of water pumping pipes; the plurality of water pumping pipes are arranged, and a water inlet of any water pumping pipe is inserted into the aquifer of the base through the corresponding drilling hole site; secondly, a main pipe is fixed to the ground through a fixing device, and the main pipe and the multiple water pumping pipes are connected; thirdly, a vacuum water pump and a water collecting device are installed at the flat position of the ground, and the vacuum water pump, the water collecting device and the header pipe are sequentially communicated; the water pump is started, underground water in the aquifer is discharged through the water pumping pipe, the header pipe and the water collecting device in sequence, and dewatering construction is completed. When precipitation operation is carried out, the stability of the arrangement positions of the vacuum water pump and the water pumping pipe is guaranteed by fixing the position of the main pipe, and the falling risk of the vacuum water pump and the water pumping pipe in the precipitation construction process is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation pit dewatering construction, and more specifically, to a method for constructing a dewatering construction of a row of light well points. Background Art

[0002] Light well points are a method of artificially lowering the groundwater level. It involves sinking a thinner diameter well pipe into an aquifer deep below the base along the four sides or one side of the foundation pit. A pumping pipe with a submersible pump at one end is then placed in the well pipe, and the other end of the pumping pipe is laid on the ground. Water is pumped out from the ground through the submersible pump and then drained to the ground through the pumping pipe, thus completing the lowering operation. However, since the submersible pump and the pumping pipe are not effectively fixed to the ground, there is a risk of falling into the bottom of the well during the pumping process. Summary of the invention

[0003] The purpose of the present invention is to provide a method for dewatering construction of a row of light well points, which can ensure the stability of the positions of a water pump and a water pumping pipe during the dewatering construction process.

[0004] The technical solution adopted by the present invention to solve this technical problem is: a construction method for dewatering light well points in a row, which specifically includes the following steps: Step 1: Drill holes at the well points determined by measurement in the foundation pit according to the design drawings, punch holes and bury multiple pumping pipes; multiple pumping pipes are arranged in an arranged manner, and the water inlet of any pumping pipe is inserted into the aquifer of the base through the corresponding drilling hole position; Step 2: Use a fixing device to fix the main pipe on the ground, and connect the main pipe and multiple pumping pipes; Step 3: Install a vacuum water pump and a water collection device at a flat location on the ground. The vacuum water pump, the water collection device and the main pipe are connected in sequence; start the water pump, and the groundwater in the aquifer is discharged through the pumping pipe, the main pipe and the water collection device in sequence to complete the precipitation construction.

[0005] As a further solution of the present invention: in step 1, before the water pumping pipe is inserted into the aquifer, a filter tube is installed at the water inlet of the water pumping pipe.

[0006] As a further solution of the present invention, the fixing device comprises a plurality of bases arranged at intervals along the length direction of the main pipe, a connecting rod is welded between two adjacent bases, a clamping device is arranged on the bases at both ends, and a plug rod is arranged at the bottom of any base; In step 2, the method of fixing the main pipe to the ground using a fixing device is as follows: A plurality of insertion rods are inserted into the stratum, and then the main pipe is horizontally placed on a plurality of bases, and the main pipe is clamped and fixed by two clamping devices.

[0007] As a further solution of the present invention, the plug rod is a conical structure with a hollow interior, and a plurality of through holes are symmetrically provided on the outer side wall of the plug rod; a box body is connected between the base and the plug rod, and the box body is a rectangular frame structure, and the two ends of the bidirectional screw are rotatably connected to the two ends of the box body, and two threaded plates are rotatably provided on the bidirectional screw, and a slider is fixedly provided on the upper part of any threaded plate, and a slide rail is provided on one of the inner side walls of the box body, and the slider is slidably provided on the slide rail, and the lower part of the threaded plate extends into the plug rod and is fixedly provided with a plurality of reinforcing rods, and the reinforcing rods are adapted to the adjacent through holes; Among them, multiple box bodies are rotatably connected to the same synchronization rod, and the two ends of the synchronization rod are respectively passed through the outside of the box bodies at the two ends and connected with knobs. A transmission device is arranged in any box body, and the transmission device includes a large gear and a small gear respectively sleeved on the outer periphery of the synchronization rod and the outer periphery of the bidirectional screw, and the large gear and the small gear are meshed and connected; In step two, after multiple insertion rods are inserted into the formation, the knob is turned to drive the synchronization rod to rotate, driving multiple transmission devices to rotate synchronously to drive the corresponding bidirectional screws to rotate. The rotation of the bidirectional screws drives the corresponding two threaded plates to move away from each other until the reinforcing rod passes through the corresponding through hole and is inserted into the formation soil.

[0008] As a further solution of the present invention, the clamping device comprises: The clamping device comprises: A positioning box is fixedly arranged on the outer side wall of the corresponding box body, a limiting groove is provided on the top surface of the positioning box along its length direction, the end of the bidirectional screw in the box body close to the positioning box passes through the outer side wall of the box body and extends horizontally to the inside of the positioning box, and the end of the synchronization rod passes through the outside of the positioning box; Two mutually meshing first gears, which are rotatably connected to the inner side wall of the positioning box, any one of the first gears is also meshed with a second gear, and any one of the second gears is rotatably connected to the inner side wall of the positioning box; Two limiting rods, one end of which is fixedly connected to the end faces of the two second gears respectively, and the other end of which passes through the top face of the limiting groove and is fixedly connected to the limiting plate; the bidirectional screw is coaxially fixedly connected to one of the first gears; In step 2, the bidirectional screw rotates, driving the two first gears and the two second gears to rotate simultaneously, thereby driving the limiting plates on the two limiting rods to approach each other to clamp the main pipe.

[0009] As a further solution of the present invention, an adjustment device is provided between any base and the corresponding box body, the adjustment device comprises an adjustment rod fixedly connected to the bottom of the base, and a sleeve fixedly connected to the top surface of the box body, the adjustment rod is sleeved in the sleeve, a positioning hole is provided on the sleeve, and an adjustment bolt is provided on the positioning hole; In step 2, after fixing the main pipe to the ground using a fixing device, the height position of the main pipe is adjusted to match the suction pipe through an adjusting device, and then the suction pipe and the main pipe are connected.

[0010] As a further solution of the present invention, the water collecting device includes a water collecting bucket placed on the ground through a pad, a connecting pipe connecting the water collecting bucket and the water pump, a fixed pipe connecting the water collecting bucket and the main pipe, and a water outlet pipe connecting the water collecting bucket and the municipal pipe network.

[0011] The present invention includes at least the following beneficial effects: in the row-type light well point dewatering construction method of the present invention, when performing dewatering operations, the vacuum water pump is laid out on flat ground, the water suction pipe and the water pump are connected to the main pipe, and the main pipe is fixed on the ground by a fixing device. The fixed position of the main pipe ensures the stability of the laying position of the vacuum water pump and the water suction pipe, thereby avoiding the risk of the vacuum water pump and the water suction pipe falling off during the dewatering construction process.

[0012] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the connection structure of the water pump, water collecting device, water pumping pipe and main pipe of the present invention; Figure 2 It is a schematic diagram of the structure of the fixing device of the present invention; Figure 3 It is a structural schematic diagram of the box body of the present invention; Figure 4 It is a structural schematic diagram of the clamping device of the present invention; Figure 5 It is a structural schematic diagram of the regulating device of the present invention; Description of the Figures in the Specification: 1. Water pump, 2. Connecting pipe, 3. Filter pipe, 4. Suction pipe, 5. Main pipe, 6. Pad, 7. Water collecting bucket, 8. Outlet pipe, 9. Fixed pipe, 10. Base, 11. Sleeve, 12. Limiting piece, 13. Limiting rod, 14. Adjusting rod, 15. Positioning hole, 16. Connecting rod, 17. Chassis, 18. Box body, 19. Insert rod, 20. Adjusting bolt, 21. Reinforcing rod, 22. Bidirectional screw, 23. Threaded plate, 24. Knob, 25. Synchronous rod, 26. Through hole, 27. Positioning box, 28. Limiting slot, 29. First gear, 30. Second gear. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0015] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships 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.

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and implementations, and its specific implementation process is as follows: like Figures 1 to 5 As shown, the present invention provides a method for constructing a row of light wellpoint dewatering, which specifically includes the following steps: Step 1: Figure 1 As shown, according to the design drawings, holes are drilled at the well points determined by measurement in the foundation pit, and multiple pumping pipes 4 are punched and buried; multiple pumping pipes 4 are arranged along the length or width direction of the foundation pit at the same interval, and the water inlet of any pumping pipe 4 is inserted into the aquifer of the base through the corresponding drilling hole position; Step 2: Figure 2 As shown, a fixing device is used to fix the main pipe 5 on the ground, and the main pipe 5 and a plurality of pumping pipes 4 are connected; Step three, install the vacuum water pump 1 and the water collecting device at a flat position on the ground, and the vacuum water pump 1, the water collecting device and the main pipe 5 are connected in sequence; start the water pump 1, and the groundwater in the aquifer is discharged in sequence through the pumping pipe 4, the main pipe 5 and the water collecting device to complete the precipitation construction; use the fixing device to fix the main pipe 5, and indirectly fix the position of the vacuum water pump 1 and the pumping pipe 4 connected to the main pipe 5, thereby eliminating the risk of the vacuum water pump 1 and the pumping pipe 4 falling off during the precipitation construction.

[0017] The present technical solution may also include the following technical details to better achieve the technical effect: in step one, before the pumping pipe 4 is inserted into the aquifer, a filter tube 3 is installed at the water inlet of the pumping pipe 4; the filter tube 3 is used to prevent soil, pebble particles, etc. in the groundwater from entering the pumping pipe 4 and blocking the pumping pipe 4 during the pumping process.

[0018] This technical solution may also include the following technical details to better achieve the technical effect: Figure 2 As shown, the fixing device includes a plurality of bases 10 spaced apart along the length direction of the main pipe 5, a connecting rod 16 is welded between two adjacent bases 10, a clamping device is provided on the bases 10 at both ends, and an insertion rod 19 is provided at the bottom of any base 10; In step 2, the main pipe 5 is fixed to the ground using a fixing device as follows: A plurality of insertion rods 19 are inserted into the stratum to connect the fixing device to the ground, and then the main pipe 5 is horizontally placed on a plurality of bases 10, and the main pipe 5 is clamped and fixed by two clamping devices, which is simple to operate.

[0019] The present technical scheme may also include the following technical details to better achieve the technical effect: the insertion rod 19 is a conical structure with a hollow interior, and a plurality of through holes 26 are symmetrically provided on the outer wall of the insertion rod 19; a box body 18 is connected between the base 10 and the insertion rod 19, and the box body 18 is a rectangular frame structure, and the two ends of the bidirectional screw 22 are rotatably connected to the two ends of the box body 18, and two threaded plates 23 are rotatably provided on the bidirectional screw 22, and a slider is fixedly provided on the upper part of any threaded plate 23, and a slide rail is provided on one of the inner side walls of the box body 18, and the slider is slidably provided on the slide rail, and the lower part of the threaded plate 23 extends into the insertion rod 19 and is fixedly provided with a plurality of reinforcing rods 21, and the reinforcing rods 21 are adapted to the adjacent through holes 26; Among them, multiple box bodies 18 are rotatably connected to the same synchronization rod 25, and the two ends of the synchronization rod 25 are respectively passed through the outside of the box bodies 18 at the two ends and are connected with knobs 24. A transmission device is arranged in any box body 18, and the transmission device includes a large gear and a small gear respectively sleeved on the outer periphery of the synchronization rod 25 and the outer periphery of the bidirectional screw 22, and the large gear and the small gear are meshed and connected; In step 2, if Figure 3 As shown, after multiple insertion rods 19 are inserted into the formation, the knob 24 is turned to drive the synchronization rod 25 to rotate. The rotation of the synchronization rod 25 will drive the large gear and the small gear to rotate. The rotation of the small gear will drive multiple bidirectional screws 22 to rotate synchronously. The rotation of the bidirectional screw 22 will drive the two threaded plates 23 on the bidirectional screw 22 to slide away from each other on the slide rail. The reinforcement rod 21 on the threaded plate 23 will pass through the corresponding through hole 26 and be inserted into the formation soil, so as to further improve the stability of the connection between the fixing device and the formation and ensure the installation and fixing effect of the main pipe 5.

[0020] This technical solution may also include the following technical details to better achieve the technical effect: Figure 2 , Figure 4 Said clamping device comprises: The positioning box 27 is fixedly arranged on the outer side wall of the corresponding box body 18. The top surface of the positioning box 27 is provided with a limiting groove 28 along its length direction. The end of the bidirectional screw 22 in the box body 18 close to the positioning box 27 passes through the outer side wall of the box body 18 and extends horizontally to the inside of the positioning box 27. The end of the synchronization rod 25 passes through the outside of the positioning box 27. Two mutually meshing first gears 29, which are rotatably connected to the inner side wall of the positioning box 27, any one of the first gears 29 is also meshed with a second gear 30, and any one of the second gears 30 is rotatably connected to the inner side wall of the positioning box 27; Two limiting rods 13, one end of which is fixedly connected to the end faces of the two second gears 30 respectively, and the other end passes through the top surface of the limiting groove 28 and is fixedly connected to the limiting plate 12; the bidirectional screw 22 is coaxially fixedly connected to one of the first gears 29; In step 2, when the bidirectional screw 22 rotates, the first gear 29 coaxially connected to the bidirectional screw 22 will rotate accordingly. When the first gear 29 rotates, it will also drive the other first gears 29 and the two second gears 30 to rotate accordingly. When the two second gears 30 rotate, the two limit rods 13 fixedly connected to the end faces of the two second gears 30 will be driven to approach each other, thereby driving the two limit plates 12 to approach each other until they abut against the outer wall of the main pipe 5. The main pipe 5 is clamped by the two limit plates 12 to achieve positioning and installation of the main pipe 5 to prevent the main pipe 5 from shaking. The gear is rotationally connected to the inner wall of the positioning box 27 through the rotating shaft.

[0021] This technical solution may also include the following technical details to better achieve the technical effect: Figure 5 As shown, an adjustment device is provided between any base 10 and the corresponding box body 18, and the adjustment device includes an adjustment rod 14 fixedly connected to the bottom of the base 10, and a sleeve 11 fixedly connected to the top surface of the box body 18, the adjustment rod 14 is sleeved in the sleeve 11, and a positioning hole 15 is opened on the sleeve 11, and an adjustment bolt 20 is provided on the positioning hole 15; In step two, after fixing the main pipe 5 to the ground with a fixing device, the height position of the base 10 fixedly connected to the adjusting rod 14 is adaptively adjusted by adjusting the position of the adjusting rod 14 in the sleeve 11, so that the height position of the main pipe 5 is finally adjusted to match the water suction pipe 4, and then the adjusting bolt 20 is screwed until the adjusting bolt 20 abuts against the adjusting rod 14 to fix the position of the adjusting rod 14, and then the water suction pipe 4 and the main pipe 5 are connected to ensure the stability of the device connection; to facilitate the connection between the sleeve 11 and the box body 18, a chassis 17 can be welded between the sleeve 11 and the box body 18.

[0022] The present technical scheme may also include the following technical details to better achieve the technical effect: the water collecting device includes a water collecting bucket 7 placed on the ground through a pad 6, a connecting pipe 2 connecting the water collecting bucket 7 and the water pump 1, a fixed pipe 9 connecting the water collecting bucket 7 and the main pipe 5, and an outlet pipe 8 connecting the water collecting bucket 7 and the municipal pipeline network; the pad 6 is used to improve the stability of the water collecting bucket 7 when it is placed on the ground, and the outlet pipe 8 is connected to the municipal pipeline network to achieve the recycling of groundwater.

[0023] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A method for constructing a row of light wellpoint dewatering, characterized in that: The specific steps include: Step 1: Drill holes at the well points determined by measurement in the foundation pit according to the design drawings, punch holes and bury multiple pumping pipes; multiple pumping pipes are arranged in an arranged manner, and the water inlet of any pumping pipe is inserted into the aquifer of the base through the corresponding drilling hole position; Step 2: Use a fixing device to fix the main pipe on the ground, and connect the main pipe and multiple pumping pipes; Step 3: Install a vacuum water pump and a water collection device at a flat location on the ground. The vacuum water pump, the water collection device and the main pipe are connected in sequence; start the water pump, and the groundwater in the aquifer is discharged through the pumping pipe, the main pipe and the water collection device in sequence to complete the precipitation construction.

2. The row light well point dewatering construction method according to claim 1, characterized in that: In step 1, before the water pumping pipe is inserted into the aquifer, a filter tube is installed at the water inlet of the water pumping pipe.

3. The row light well point dewatering construction method according to claim 1, characterized in that: The fixing device comprises a plurality of bases arranged at intervals along the length direction of the main pipe, a connecting rod is welded between two adjacent bases, a clamping device is arranged on the bases at both ends, and a plug rod is arranged at the bottom of any base; In step 2, the method of fixing the main pipe to the ground using a fixing device is as follows: A plurality of insertion rods are inserted into the stratum, and then the main pipe is horizontally placed on a plurality of bases, and the main pipe is clamped and fixed by two clamping devices.

4. The row light well point dewatering construction method as claimed in claim 3, characterized in that: The insertion rod is a conical structure with a hollow interior, and a plurality of through holes are symmetrically provided on the outer side wall of the insertion rod; a box body is connected between the base and the insertion rod, and the box body is a rectangular frame structure, and the two ends of the bidirectional screw are rotatably connected to the two ends of the box body, and two threaded plates are rotatably provided on the bidirectional screw, and a slider is fixedly provided on the upper part of any threaded plate, and a slide rail is provided on one of the inner side walls of the box body, and the slider is slidably provided on the slide rail, and the lower part of the threaded plate extends into the insertion rod and is fixedly provided with a plurality of reinforcing rods, and the reinforcing rods are adapted to the adjacent through holes; Among them, multiple box bodies are rotatably connected to the same synchronization rod, and the two ends of the synchronization rod are respectively passed through the outside of the box bodies at the two ends and connected with knobs. A transmission device is arranged in any box body, and the transmission device includes a large gear and a small gear respectively sleeved on the outer periphery of the synchronization rod and the outer periphery of the bidirectional screw, and the large gear and the small gear are meshed and connected; In step two, after multiple insertion rods are inserted into the formation, the knob is turned to drive the synchronization rod to rotate, driving multiple transmission devices to rotate synchronously to drive the corresponding bidirectional screws to rotate. The rotation of the bidirectional screws drives the corresponding two threaded plates to move away from each other until the reinforcing rod passes through the corresponding through hole and is inserted into the formation soil.

5. The row light well point dewatering construction method as claimed in claim 4, characterized in that: The clamping device comprises: A positioning box is fixedly arranged on the outer side wall of the corresponding box body, a limiting groove is provided on the top surface of the positioning box along its length direction, the end of the bidirectional screw in the box body close to the positioning box passes through the outer side wall of the box body and extends horizontally to the inside of the positioning box, and the end of the synchronization rod passes through the outside of the positioning box; Two mutually meshing first gears, which are rotatably connected to the inner side wall of the positioning box, any one of the first gears is also meshed with a second gear, and any one of the second gears is rotatably connected to the inner side wall of the positioning box; Two limiting rods, one end of which is fixedly connected to the end faces of the two second gears respectively, and the other end of which passes through the top face of the limiting groove and is fixedly connected to the limiting plate; the bidirectional screw is coaxially fixedly connected to one of the first gears; In step 2, the bidirectional screw rotates, driving the two first gears and the two second gears to rotate simultaneously, thereby driving the limiting plates on the two limiting rods to approach each other to clamp the main pipe.

6. The row of light well point dewatering construction method according to claim 4, characterized in that: An adjustment device is provided between any base and the corresponding box body, the adjustment device comprises an adjustment rod fixedly connected to the bottom of the base, and a sleeve fixedly connected to the top surface of the box body, the adjustment rod is sleeved in the sleeve, a positioning hole is provided on the sleeve, and an adjustment bolt is provided on the positioning hole; In step 2, after fixing the main pipe to the ground using a fixing device, the height position of the main pipe is adjusted to match the suction pipe through an adjusting device, and then the suction pipe and the main pipe are connected.

7. The row of light well point dewatering construction method according to claim 1, characterized in that: The water collecting device includes a water collecting bucket placed on the ground through a pad, a connecting pipe connecting the water collecting bucket and the water pump, a fixed pipe connecting the water collecting bucket and the main pipe, and a water outlet pipe connecting the water collecting bucket and the municipal pipe network.

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