Water-rich area composite foundation pit dewatering well system and construction method thereof

Abstract

This invention discloses a composite foundation pit dewatering well system and its construction method in water-rich areas. The system includes dewatering well pipes, a pump, water pipes, and a conveying and installation device. The conveying and installation device includes a support module, a first support plate, a horizontal jack, a rotary drive module, a second support plate, a translation adjustment module, a magnetic suction module, and a vertical jack. The translation adjustment module and the support module are fixedly supported under the first support plate. The horizontal jack and the rotary drive module are located on the top of the first support plate. The horizontal jack pushes the rotary drive module to slide horizontally on the first support plate. The second support plate is fixedly installed at the bottom of the rotary drive module. The rotary drive module drives the second support plate to rotate and lock adjacent dewatering well pipes. The vertical jack is slidably installed on the second support plate. A magnetic suction module is fixedly installed at the bottom of the vertical jack. This invention solves the problems of difficult docking and adjustment during the installation of dewatering well pipes and inconvenient movement of multiple dewatering wells during construction.

Description

Technical Field

[0001] This invention relates to the field of foundation pit construction technology, and more specifically, to a composite foundation pit dewatering well system for water-rich areas and its construction method. Background Technology

[0002] With the development of construction technology, dewatering of foundation pits often adopts corrugated pipes, iron casings or concrete pipes, which require lifting machinery for hoisting, wasting manpower and resources. These methods are not only unusable, but also cannot effectively block sand and soil during use, which can easily lead to instability of the soil around the foundation pit due to sand and soil loss.

[0003] The existing technology has the following disadvantages: (1) When installing pipelines in multiple dewatering wells, it is necessary to hoist the equipment to different wellheads and make centering adjustments, which is cumbersome and time-consuming; (2) When lowering the well pipe into the dewatering well, fine adjustments are often required. Relying on the existing heavy hoisting equipment, multiple people need to work together, and the degree of adjustment is greatly affected by the skill level of the hoisting construction personnel; (3) The dewatering well pipes used are inconvenient to connect, which increases the difficulty of multi-section hoisting construction. Summary of the Invention

[0004] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides a composite foundation pit dewatering well system for water-rich areas and its construction method. The conveying and installation device includes a support module, a first support plate, a horizontal jack, a rotary drive module, a second support plate, a translation adjustment module, a magnetic suction module, and a vertical jack. The translation adjustment module and the support module are fixedly supported under the first support plate. The translation adjustment module is used for displacement of the device, and the support module stabilizes the device and supports it on the ground. The horizontal jack and the rotary drive module are located on the top of the first support plate and are used respectively for adjusting the center position and rotating and connecting adjacent dewatering well pipes. The rotary drive module passes through the bottom of the first support plate and is fixedly installed on the second support plate. The rotary drive module can drive the second support plate to rotate in the horizontal plane. The vertical jack is slidably installed on the second support plate and its position in the horizontal plane can be adjusted. The lower end of the vertical jack is fixed with a magnetic suction module for clamping and fixing the dewatering well pipe. After the dewatering well pipe is lowered into the dewatering well by the vertical jack, the rotary drive module drives the second support plate, the vertical jack and the dewatering well pipe to rotate, thereby connecting and installing multiple dewatering well pipes end to end. This solves the problems of difficulty in docking and adjusting dewatering well pipes during installation and inconvenience in moving multiple dewatering wells during construction.

[0005] To achieve the above objectives, the present invention provides a composite foundation pit dewatering well system for water-rich areas, comprising a dewatering well pipe, a pump, a water pipe, and a conveying and installation device. The dewatering well pipe is placed inside the dewatering well via the conveying and installation device. The pump is located at the bottom of the dewatering well pipe, and the water pipe connects to the pump and transports the accumulated water to the outside of the foundation pit. The conveying and installation device includes a support module, a first support plate, a horizontal jack, a rotary drive module, a second support plate, a translation adjustment module, a magnetic suction module, and a vertical jack. The translation adjustment module and the support module are fixedly supported under the first support plate. The horizontal jack and the rotary drive module are located on the top of the first support plate. The horizontal jack pushes the rotary drive module to slide horizontally on the first support plate to adjust its position. The bottom of the rotary drive module is fixedly provided with the second support plate, and the rotary drive module drives the second support plate to rotate and lock adjacent dewatering well pipes. The vertical jack is slidably disposed on the second support plate, and the bottom end of the vertical jack is fixedly provided with the magnetic suction module, which adsorbs and fixes the dewatering well pipe.

[0006] Furthermore, the support module includes a connecting rod, a jack, and a pad. The connecting rod is vertically arranged, with its two ends fixed to the jack and the first support plate, respectively. The jack is used to adjust the height of the first support plate. The pad is fixed to the bottom of the jack and supports the ground.

[0007] Furthermore, the rotation drive module includes a first motor and a motor rod. A first groove is provided on the first support plate. The first motor is slidably connected to the first groove. A channel is opened at the bottom of the first groove, penetrating the first support plate. The motor rod passes through the channel and is fixed to the second support plate. The top of the motor rod is axially connected to the output shaft of the first motor. The first motor drives the second support plate and the magnetic attraction module to rotate.

[0008] Furthermore, the second support plate includes a second slide groove, a second motor, a transmission gear, and a rack. The second slide groove is formed on the second support plate, and the rack is slidably connected to the second slide groove. The second motor is fixed on the second support plate, and the transmission gear is axially connected to the second motor. Multiple racks are provided, and the transmission gear is operatively connected to the racks. The multiple racks clamp the vertical jack in the middle, and the second motor drives the racks to slide.

[0009] Furthermore, a clearance groove is provided at the bottom of the second chute, the vertical jack is slidably connected to the second chute, and the vertical jack passes through the clearance groove and is fixedly connected to the magnetic suction module at the bottom.

[0010] Furthermore, the magnetic suction module includes a magnetic disk and magnetic claws. The magnetic disk is fixedly installed at the bottom of the vertical jack, and the magnetic disk is movably connected to multiple magnetic claws.

[0011] Furthermore, it includes a battery, which is fixedly mounted on the second support plate, and the battery supplies power to the magnetic disk and the magnetic claw.

[0012] Furthermore, the dewatering well pipe includes a filter layer, a permeable nonwoven fabric, a steel mesh, a connecting module, and a ferromagnetic ring. The permeable nonwoven fabric is wrapped around the outside of the filter layer, and the steel mesh is wrapped around the outside of the permeable nonwoven fabric. The ferromagnetic ring is fixed to the outside of the steel mesh. The magnetic claw generates magnetic force and is attracted by the ferromagnetic ring to hook onto the steel mesh. The connecting module is located at the end of the dewatering well pipe, and the connecting module locks adjacent dewatering well pipes.

[0013] Furthermore, the connecting module includes a locking block, a locking groove, an arc-shaped connecting rod, a baffle, and a locking block inlet. The arc-shaped connecting rod is fixedly extended from the bottom of the dewatering well pipe. Multiple arc-shaped connecting rods are evenly distributed around the axis of the dewatering well pipe. The locking block is fixedly provided at the end of the arc-shaped connecting rod. The locking block inlet is provided at the top of the dewatering well pipe for the locking block to be inserted. The locking groove is opened on the side wall of the end of the dewatering well pipe. Multiple baffles are fixedly provided on the upper part of the locking groove. The locking groove is for the arc-shaped connecting rod to be inserted.

[0014] According to another aspect of the present invention, a construction method for a composite foundation pit dewatering well system in a water-rich area is provided, which is implemented using the aforementioned composite foundation pit dewatering well system, and includes the following steps:

[0015] S100, during the piling stage, drill dewatering well holes at the positions set in the construction drawings;

[0016] S200, install the conveying installation device, push the conveying installation device above the dewatering well hole through the translation adjustment module, and align the center of the rotary drive module with the center of the dewatering well.

[0017] S300, adjust the position of the first support plate and the second support plate. First, start the horizontal jack to move the first motor and the second support plate to the outside of the dewatering well. Then, start the jack to adjust the height of the first support plate so that it is higher than the single section of the dewatering well pipe.

[0018] S400 hoisting and lifting of dewatering well pipes: straighten the dewatering well pipes and align them vertically with the bottom of the magnetic module. The battery powers the magnetic disk and magnetic claws. The magnetic disk generates magnetic force to attract the upper end of the dewatering well pipe. At the same time, the magnetic claws attract the ferromagnetic ring on the upper side wall of the dewatering well pipe, causing the magnetic claws to hook into the steel mesh holes, assisting the magnetic disk in stably holding the dewatering well pipe.

[0019] S500: Install the dewatering well pipes sequentially. Start the horizontal jack and move the first motor and the second support plate above the dewatering well pipe. Use the vertical jack to lift and lower the dewatering well pipe to the bottom of the dewatering well. Turn off the battery power. The magnetic disk and magnetic claw lose their attraction, and the magnetic claw repels the ferromagnetic ring, causing the magnetic claw to spring away. Then, the magnetic disk and magnetic claw release their attraction and fixation to the dewatering well pipe. Next, install the second section of the dewatering well pipe. Follow the steps in SS. When connecting two adjacent sections of the dewatering well pipe, start the second motor to rotate the entire second support plate, which will rotate and adjust the dewatering well pipe located above. When the locking block is aligned with the locking block inlet, adjust the vertical jack to continue lowering the dewatering well pipe and rotate the dewatering well pipe until the locking block is inserted into the locking slot. This completes the installation of multiple sections of the dewatering well pipe.

[0020] The S600 is equipped with a water pump. The water pump is lowered to the bottom of the dewatering well. Multiple water pumps at the bottom of the dewatering wells are connected through water pipes. The water pumps are started to pump water out of the foundation pit, into the drainage ditch or a special water tank for recycling.

[0021] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0022] 1. This invention provides a composite foundation pit dewatering well system for water-rich areas. The conveying and installation device includes a support module, a first support plate, a horizontal jack, a rotary drive module, a second support plate, a translation adjustment module, a magnetic suction module, and a vertical jack. The translation adjustment module and the support module are fixedly supported under the first support plate. The translation adjustment module is used to displace the device, and the support module stabilizes the device and supports it on the ground. The horizontal jack and the rotary drive module are located on the top of the first support plate and are used to adjust the center position and rotate and connect adjacent dewatering well pipes, respectively. The rotary drive module passes through the first support plate. A second support plate is fixedly installed at the bottom of the plate. The rotation drive module can drive the second support plate to rotate in the horizontal plane. The vertical jack is slidably installed on the second support plate and its position in the horizontal plane can be adjusted. The lower end of the vertical jack is fixed with a magnetic suction module for clamping and fixing the dewatering well pipe. After the dewatering well pipe is lowered into the dewatering well by the vertical jack, the rotation drive module drives the second support plate, the vertical jack and the dewatering well pipe to rotate, thereby connecting and installing multiple dewatering well pipes end to end. This solves the problems of difficulty in docking and adjusting dewatering well pipes during installation and inconvenience in moving multiple dewatering wells during construction.

[0023] 2. This invention provides a composite foundation pit dewatering well system for water-rich areas. The magnetic module includes a magnetic disk and magnetic claws. The magnetic disk is fixedly installed at the bottom of a vertical jack, and multiple magnetic claws are arranged around the periphery of the magnetic disk. The two are movably connected. When the magnetic disk and magnetic claws are not energized, they have repulsive magnetic forces. When the magnetic disk is energized, the generated magnetic attraction attracts the dewatering well pipe. At the same time, the magnetic claws generate magnetic force to rotate and attract the dewatering well pipe to the side wall. By hooking the dewatering well pipe and attracting it with the magnetic disk, the dewatering well pipe is hoisted without the need for manual hooking and fixing, making the operation quick and easy.

[0024] 3. This invention provides a composite foundation pit dewatering well system for water-rich areas. The second support plate includes a second chute, a clearance groove, a second motor, and a rack. The second chute is formed on the second support plate, and the rack is slidably connected to the second chute. The second motor is fixed on the second support plate and is driven by the rack. A clearance groove is formed at the bottom of the second chute. A vertical jack is slidably connected to the second chute and passes through the clearance groove. Two sets of the second motor, transmission gear, and rack are provided. The two racks clamp the vertical jack in the middle. When the second motor drives the two racks to slide, it pushes the vertical jack to slide horizontally to adjust its position. The small adjustment of the racks to center the dewatering well reduces the adjustment error requirements of the initial hoisting, provides high freedom, effectively improves construction efficiency, and reduces construction difficulty.

[0025] 4. This invention provides a composite foundation pit dewatering well system for water-rich areas. The dewatering well pipe uses a filter layer comprising activated carbon, gravel, sand, etc., with a steel mesh wrapped around the outside of the permeable non-woven fabric to prevent damage to the permeable non-woven fabric due to collision or compression of the filter layer. The filter layer, permeable non-woven fabric, and steel mesh effectively reduce the infiltration of sand into the dewatering well pipe, resulting in clearer water and ensuring the service life of the pump. The steel mesh on the outside of the pipe wall effectively enhances the compressive strength of the dewatering well pipe. Ferromagnetic rings are fixed to the outside of the steel mesh. During hoisting, the magnetic claws generate magnetic force and are attracted by the ferromagnetic rings, thus hooking onto the steel mesh. The dewatering well pipe can be hooked and fixed without manual adjustment. A connecting module is set at its end, and adjacent sections of the dewatering well pipe are connected by slots and blocks to lock them in place. This dewatering well pipe structure, combined with the conveying and installation device, facilitates hoisting and rotational fixing, achieving efficient construction. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a conveying and installation device in a composite foundation pit dewatering well system in a water-rich area, according to an embodiment of the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the structure of a conveying and installation device in a composite foundation pit dewatering well system in a water-rich area, according to an embodiment of the present invention. Figure 2 ;

[0028] Figure 3 This is a schematic diagram of the structure of the second support plate in a composite foundation pit dewatering well system in a water-rich area according to an embodiment of the present invention;

[0029] Figure 4 This is a bottom view of a magnetic suction module in a composite foundation pit dewatering well system in a water-rich area according to an embodiment of the present invention;

[0030] Figure 5 This is a cross-sectional view of a dewatering well pipe in a composite foundation pit dewatering well system in a water-rich area, according to an embodiment of the present invention.

[0031] Figure 6 This is a schematic diagram of the installation of dewatering well pipes in a composite foundation pit dewatering well system in a water-rich area according to an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of a composite foundation pit dewatering well system and its supporting facilities in a water-rich area, according to an embodiment of the present invention.

[0033] Figure 8 This is a construction flowchart of a composite foundation pit dewatering well system in a water-rich area according to an embodiment of the present invention.

[0034] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-transfer installation device, 11-support module, 112-jack, 111-connecting rod, 113-pad, 12-first support plate, 121-first slide rail, 13-lateral jack, 14-rotation drive module, 141-first motor, 142-motor rotor, 15-battery, 16-second support plate, 161-second slide rail, 162-clearance groove, 163-second Motor, 164-Transmission gear, 165-Rack, 17-Translation adjustment module, 171-Support rod, 172-Wheel, 18-Magnetic module, 181-Magnetic disk, 182-Magnetic claw, 19-Vertical jack, 2-Drainage well pipe, 21-Filter layer, 22-Permeable non-woven fabric, 23-Steel mesh, 24-Connecting module, 25-Ferromagnetic ring, 241-Card block, 242-Card slot, 243-Arc-shaped connecting rod, 244-Baffle, 245-Card block inlet. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0036] like Figures 1-7The illustrated composite foundation pit dewatering system for water-rich areas includes a conveying and installation device 1, dewatering well pipes 2, pumps, and water pipes. The dewatering well pipes 2 are installed inside the dewatering wells via the conveying and installation device 1. The pumps are located at the bottom of multiple dewatering well pipes 2, with rubber pads around the pumps and protective covers at the bottom to prevent damage from collisions inside the pipes or at the bottom. Groundwater is filtered through the dewatering well pipes 2 and then extracted, then transported through water pipes to the outside of the foundation pit, drainage ditches, or pools for storage and reuse, forming a water circulation system. Using this system and construction in water-rich areas can effectively improve the water circulation efficiency of the foundation pit and is more in line with the concept of environmental protection and green development.

[0037] Furthermore, such as Figures 1-4 As shown, the conveying and installation device 1 includes a support module 11, a first support plate 12, a horizontal jack 13, a rotary drive module 14, a second support plate 16, a translation adjustment module 17, a magnetic suction module 18, and a vertical jack 19. The translation adjustment module 17 and the support module 11 are fixedly supported under the first support plate 12. The translation adjustment module 17 can support the first support plate 12 in ground displacement. When the dewatering well is located below the first support plate 12, the support module 11 extends to support the ground, and the translation adjustment module 17 is lifted off the ground. Further, the horizontal jack 13 and the rotary drive module 14 are disposed on the top of the first support plate 12. The rotary drive module 14 is fixed to the end of the horizontal jack 13. The horizontal jack 13 pushes the rotary drive module 14 to slide horizontally on the first support plate 12 to adjust its position. The rotation drive module 14 passes through the bottom of the first support plate 12 and fixes the second support plate 16. The rotation drive module 14 can drive the second support plate 16 to rotate in the horizontal plane. Further, the vertical jack 19 is slidably set on the second support plate 16. The vertical jack 19 is set vertically downward and has a magnetic suction module 18 fixed at its end for clamping and fixing the dewatering well pipe 2. After the dewatering well pipe 2 is lowered into the dewatering well by the vertical jack 19, the rotation drive module 14 drives the second support plate 16, the vertical jack 19 and the dewatering well pipe 2 to rotate, thereby connecting and installing the ends of multiple dewatering well pipes 2. The conveying installation device 1 used in this system is convenient for adjusting the ground position and centering the dewatering well, solving the problems of difficult docking and adjustment during the installation of dewatering well pipes and inconvenient movement of multiple dewatering wells during construction.

[0038] Furthermore, such as Figure 1 As shown, the support module 11 includes a connecting rod 111, a jack 112, and a pad 113. The connecting rod 111 is vertically arranged, with both ends fixed between the jack 112 and the first support plate 12, respectively, to provide support. The jack 112 can be raised and lowered to adjust the height of the entire first support plate 12. The pad 113 is fixed to the bottom of the jack 112 and is in direct contact with the ground. It is used to increase the contact area between the support module 11 and the ground, which helps to distribute the pressure to the ground and prevent sinking during construction.

[0039] Furthermore, such as Figures 1-3 As shown, a horizontal jack 13 is horizontally fixed to the upper surface of the first support plate 12. A first slide groove 121 is provided on the first support plate 12. The end of the horizontal jack 13 pushes the rotary drive module 14 to slide within the first slide groove 121. Specifically, the rotary drive module 14 includes a first motor 141 and a motor rod 142. The first motor 141 is slidably connected to the first slide groove 121. A channel penetrating the first support plate 12 is opened at the bottom of the first slide groove 121. The motor rod 142 is fixed to a second support plate 16 passing through the channel and the bottom. The top of the motor rod 142 is axially connected to the output shaft of the first motor 141. The motor rod 142 is used to transmit the power of the first motor 141 to the second support plate 16 to rotate the second support plate 16 and the magnetic module 18.

[0040] Furthermore, such as Figures 1-3 As shown, the second support plate 16 includes a second sliding groove 161, a clearance groove 162, a second motor 163, a transmission gear 164, and a rack 165. The second sliding groove 161 is formed on the second support plate 16, the rack 165 is slidably connected to the second sliding groove 161, the second motor 163 is fixed to the second support plate 16, and the transmission gear 164 is axially connected to the second motor 163. The second motor 163 drives the rack 165 to slide through the transmission gear 164. Further, a clearance groove 162 is formed at the bottom of the second sliding groove 161, and a vertical jack 163 is slidably connected to the second sliding groove 161, passing through the clearance groove 162. The second motor 163... 3. Two sets of transmission gears 164 and racks 165 are respectively provided. The two racks 165 clamp the vertical jack 19 in the middle. When the second motor 163 drives the two racks 165 to slide, it pushes the vertical jack 19 to slide horizontally to adjust its position. The translation adjustment module 17 used in this system is used to move the conveying installation device 1 above different dewatering wells. The horizontal jacks 13 and racks 165 are used for small adjustments to center the dewatering wells. The rotation drive module 14 drives the magnetic suction module 18 at the bottom to clamp the installation dewatering well pipe 2. The system has a high degree of freedom, which effectively improves the construction efficiency. It does not require heavy machinery to move and adjust the installation equipment back and forth, which reduces the construction difficulty.

[0041] Furthermore, such as Figures 1-4As shown, the magnetic module 18 includes a magnetic disk 181 and magnetic claws 182. The magnetic disk 181 is fixedly mounted at the bottom of the vertical jack 19. Multiple magnetic claws 182 are arranged around the magnetic disk 181. The magnetic claws 182 are movably connected to the magnetic disk 181 via hinges. A battery 15 is provided on the second support plate 16 to power the magnetic disk 181 and the magnetic claws 182. When the magnetic disk 181 and the magnetic claws 182 are not powered, they exhibit repulsive magnetic forces. When the magnetic disk 181 is powered, the generated magnetic attraction force draws them together. The attached dewatering well pipe 2 is magnetically rotated by the magnetic claw 182 and adsorbed onto the side wall of the dewatering well pipe 2. The dewatering well pipe 2 is hoisted by hooking the dewatering well pipe 2 and the magnetic disk 181. Then, the vertical jack 19 is adjusted to lift and lower, and the dewatering well pipe 2 is hoisted into the dewatering well. The clamping of the dewatering well pipe 2 can be released by energizing the magnetic disk 181 and the magnetic claw 182. Furthermore, when adjusting the end-to-end connection of multiple dewatering well pipes 2, the position can be finely adjusted by the horizontal jack 13 and the rack 165 to complete the connection and installation.

[0042] Furthermore, such as Figure 1-6As shown, the dewatering well pipe 2 includes a filter layer 21, a permeable non-woven fabric 22, a steel mesh 23, a connecting module 24, and a ferromagnetic ring 25. The permeable non-woven fabric 22 wraps around the outside of the filter layer 21. The filter layer 21 includes activated carbon, gravel, sand, etc. A steel mesh 23 is added to the outside of the permeable non-woven fabric 22 to prevent the filter layer 21 from being damaged by collision or compression. The filter layer 21, the permeable non-woven fabric 22, and the steel mesh 23 can prevent sand and soil from seeping into the dewatering well pipe 2 and causing soil loss around the foundation pit. The magnetic ring 25 is fixed to the outside of the steel mesh 23 and the upper side wall of the dewatering well pipe 2. During hoisting, the magnetic claw 182 generates magnetic force and is attracted by the magnetic ring 25, thus hooking onto the steel mesh 23. The dewatering well pipe 2 can be hooked and fixed without personnel adjustment. Furthermore, the connecting module 24 is set at the end of the dewatering well pipe 2, including a locking block 241, a locking groove 242, an arc-shaped connecting rod 243, a baffle 244, and a locking block inlet 245. The locking groove 242 and locking block of adjacent sections of the dewatering well pipe 2 are connected. Specifically, the bottom of the previous section of the dewatering well pipe 2 is provided with an arc-shaped connecting rod 243. Multiple arc-shaped connecting rods 243 are provided and evenly distributed around the axis of the dewatering well pipe 2. A locking block 241 is fixed at the end of the connecting rod. The top of the lowered and installed dewatering well pipe 2 is provided with a locking block inlet 245, which is larger than the locking block 241, for the locking block 241 to be inserted. A locking groove 242 is opened on the side wall of the end of the dewatering well pipe 2, and multiple baffles are fixed on the upper part of the locking groove 242. 244, the arc-shaped groove 242 formed between the baffles 244 allows the arc-shaped connecting rod 243 to be inserted. When the upper section of the dewatering pipe 2 is lowered to the lower section of the dewatering pipe 2, the locking block 241 is inserted into the locking block inlet 245, and the upper section of the dewatering pipe 2 is rotated so that the locking block 241 is inserted into the groove 242. Due to the restriction of the baffles 244, the two adjacent sections of the dewatering pipe 2 are fixed, and the locking is completed. The structure of the dewatering pipe 2 is used in conjunction with the conveying and installation device 1 to facilitate hoisting and rotation fixing, and to achieve efficient construction.

[0043] Furthermore, such as Figures 1-8 As shown, the method of using the composite foundation pit dewatering well system in a water-rich area includes the following steps:

[0044] S100, during the piling stage, drill dewatering well holes at the positions set in the construction drawings;

[0045] S200, install the conveying installation device 1, push the conveying installation device 1 above the dewatering well hole through the translation adjustment module 17, and align the center of the rotation drive module 14 with the center of the dewatering well.

[0046] S300, adjust the position of the first support plate 12 and the second support plate 16, first start the horizontal jack 13, move the first motor 141 and the second support plate 16 to the outside of the dewatering well, then start the jack 112, adjust the height of the first support plate 12 so that it is about ten centimeters higher than the single dewatering well pipe 2.

[0047] S400, hoist the dewatering well pipe 2, straighten the dewatering well pipe 2, and vertically face the bottom of the magnetic module 18. The battery 15 supplies power to the magnetic disk 181 and the magnetic claw 182. The magnetic disk 181 generates magnetic force to attract the upper end of the dewatering well pipe 2. At the same time, the magnetic claw 182 attracts the ferromagnetic ring 24 on the upper side wall of the dewatering well pipe 2, so that the magnetic claw 182 hooks into the hole of the steel mesh 23, which plays a role in assisting the magnetic disk 181 to stably attract the dewatering well pipe 2.

[0048] S500, install the dewatering well pipe 2 in sequence, start the horizontal jack 13, move the first motor 141 and the second support plate 16 above the dewatering well pipe 2, and raise and lower it using the vertical jack 19 until the dewatering well pipe 2 is lowered to the bottom of the dewatering well. Turn off the power supply of the battery 15, the magnetic disk 181 and the magnetic claw 182 lose their attraction, and the magnetic claw 182 repels the ferromagnetic ring 24 and bounces away from the magnetic claw 182. Then the magnetic disk 181 and the magnetic claw 182 release their attraction to the dewatering well pipe 2. Attach a fixing; further install the second section of the dewatering well pipe 2. First, operate according to steps S100-S400. When connecting two adjacent sections of the dewatering well pipe 2, start the second motor 163 to rotate the entire second support plate 16, which will drive the dewatering well pipe 2 located above to rotate and adjust. When the locking block 241 is aligned with the locking block inlet 245, adjust the vertical jack 19 to continue lowering the dewatering well pipe 2 and rotate the dewatering well pipe 2 until the locking block 241 is inserted into the locking slot 242, thus completing the installation of multiple sections of the dewatering well pipe 2.

[0049] The S600 is equipped with a water pump. The water pump is lowered to the bottom of the dewatering well. Multiple water pumps at the bottom of the dewatering wells are connected through water pipes. The water pumps are started to pump water out of the foundation pit, into the drainage ditch or a special water tank for recycling.

[0050] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A composite foundation pit dewatering well system for water-rich areas, comprising a dewatering well pipe (2), a pump, and a water pipe, characterized in that, The system includes a conveying and installation device (1), through which the dewatering well pipe (2) is placed inside the dewatering well. A water pump is installed at the bottom of the dewatering well pipe (2), and a water pipe connects to the water pump to transport the accumulated water to the outside of the pit. The conveying and installation device (1) includes a support module (11), a first support plate (12), a horizontal jack (13), a rotary drive module (14), a second support plate (16), a translation adjustment module (17), a magnetic suction module (18), and a vertical jack (19). The translation adjustment module (17) and the support module (11) are fixedly supported under the first support plate (12), and the horizontal jack (13) and the rotary drive module (14) are fixedly supported under the first support plate (12). The rotary drive module (14) is located on the top of the first support plate (12). The horizontal jack (13) pushes the rotary drive module (14) to slide horizontally on the first support plate (12) to adjust its position. The bottom of the rotary drive module (14) is fixedly provided with the second support plate (16). The rotary drive module (14) drives the second support plate (16) to rotate and lock the adjacent dewatering well pipe (2). The vertical jack (19) is slidably provided on the second support plate (16). The bottom end of the vertical jack (19) is fixedly provided with the magnetic suction module (18). The magnetic suction module (18) adsorbs and fixes the dewatering well pipe (2).

2. The composite foundation pit dewatering well system for water-rich areas according to claim 1, characterized in that, The support module (11) includes a connecting rod (111), a jack (112), and a pad (113). The connecting rod (111) is vertically arranged, with its two ends fixed to the jack (112) and the first support plate (12) respectively. The jack (112) is used to adjust the height of the first support plate (12). The pad (113) is fixed to the bottom of the jack (112) and is supported on the ground.

3. The composite foundation pit dewatering well system for water-rich areas according to claim 2, characterized in that, The rotary drive module (14) includes a first motor (141) and a motor rod (142). A first groove (121) is provided on the first support plate (12). The first motor (141) is slidably connected to the first groove (121). A channel is opened at the bottom of the first groove (121) that passes through the first support plate (12). The motor rod (142) passes through the channel and is fixed to the second support plate (16). The top of the motor rod (142) is axially connected to the output shaft of the first motor (141). The first motor (141) drives the second support plate (16) and the magnetic module (18) to rotate.

4. The composite foundation pit dewatering well system for water-rich areas according to claim 3, characterized in that, The second support plate (16) includes a second slide groove (161), a second motor (163), a transmission gear (164), and a rack (165). The second slide groove (161) is opened on the second support plate (16), the rack (165) is slidably connected to the second slide groove (161), the second motor (163) is fixed on the second support plate (16), and the transmission gear (164) is axially connected to the second motor (163). Multiple racks (165) are provided, and the transmission gear (164) is operatively connected to the racks (165). Multiple racks (165) clamp the vertical jack (19) in the middle, and the second motor (163) drives the racks (165) to slide.

5. A composite foundation pit dewatering well system for water-rich areas according to claim 4, characterized in that, The bottom of the second slide groove (161) has a clearance groove (162), the vertical jack (19) is slidably connected to the second slide groove (161), and the vertical jack (19) passes through the clearance groove (162) and is fixedly connected to the magnetic suction module (18) at the bottom.

6. A composite foundation pit dewatering well system for water-rich areas according to claim 5, characterized in that, The magnetic module (18) includes a magnetic disk (181) and magnetic claws (182). The magnetic disk (181) is fixedly installed at the bottom of the vertical jack (19), and the magnetic disk (181) is movably connected to multiple magnetic claws (182).

7. A composite foundation pit dewatering well system for water-rich areas according to claim 6, characterized in that, Includes a battery (15), which is fixedly mounted on the second support plate (16) and supplies power to the magnetic disk (181) and the magnetic claw (182).

8. A composite foundation pit dewatering well system for water-rich areas according to claim 7, characterized in that, The rainwater well pipe (2) includes a filter layer (21), a permeable nonwoven fabric (22), a steel mesh (23), a connecting module (24), and a ferromagnetic ring (25). The permeable nonwoven fabric (22) is wrapped around the outside of the filter layer (21). The steel mesh (23) is wrapped around the outside of the permeable nonwoven fabric (22). The ferromagnetic ring (25) is fixed outside the steel mesh (23). The magnetic claw (182) generates magnetic force and is attracted by the ferromagnetic ring (25) and hooks onto the steel mesh (23). The connecting module (24) is located at the end of the rainwater well pipe (2). The connecting module (24) locks adjacent rainwater well pipes (2).

9. A composite foundation pit dewatering well system for water-rich areas according to claim 8, characterized in that, The connecting module (24) includes a locking block (241), a locking groove (242), an arc-shaped connecting rod (243), a baffle (244), and a locking block inlet (245). The arc-shaped connecting rod (243) is fixedly provided at the bottom of the dewatering well pipe (2). Multiple arc-shaped connecting rods (243) are provided and are evenly distributed around the axis of the dewatering well pipe (2). The locking block (241) is fixedly provided at the end of the arc-shaped connecting rod (243). The locking block inlet (245) is provided at the top of the dewatering well pipe (2) for the locking block (241) to be inserted. The locking groove (242) is opened on the side wall of the end of the dewatering well pipe (2). Multiple baffles (244) are fixedly provided on the upper part of the locking groove (242). The locking groove (242) is for the arc-shaped connecting rod (243) to be inserted.

10. A construction method for a composite foundation pit dewatering well system in a water-rich area, characterized in that, The application of the composite foundation pit dewatering well system in water-rich areas as described in claim 9 includes the following steps: S100, during the piling stage, drill dewatering well holes at the positions set in the construction drawings; S200, install the conveying installation device (1), push the conveying installation device (1) above the dewatering well hole through the translation adjustment module (17), and align the center of the rotation drive module (14) with the center of the dewatering well; S300, adjust the position of the first support plate (12) and the second support plate (16), first start the horizontal jack (13), move the first motor (141) and the second support plate (16) to the outside of the dewatering well, then start the jack (112) to adjust the height of the first support plate (12) so that it is higher than the single section of the dewatering well pipe (2). S400, hoist the dewatering well pipe (2), straighten the dewatering well pipe (2) and make it vertically facing the bottom of the magnetic module (18). The battery (15) supplies power to the magnetic disk (181) and the magnetic claw (182). The magnetic disk (181) generates magnetic force and attracts the upper end of the dewatering well pipe (2). At the same time, the magnetic claw (182) attracts the ferromagnetic ring (25) on the upper side wall of the dewatering well pipe (2), so that the magnetic claw (182) hooks into the hole of the steel mesh (23) to help the magnetic disk (181) stably attract the dewatering well pipe (2). S500, install the dewatering well pipe (2) in sequence, start the horizontal jack (13), move the first motor (141) and the second support plate (16) above the dewatering well pipe (2), and raise and lower it by the vertical jack (19) until the dewatering well pipe (2) is lowered to the bottom of the dewatering well. Turn off the power supply of the battery (15), the magnetic disk (181) and the magnetic claw (182) lose their attraction, and the magnetic claw (182) and the ferromagnetic ring (25) repel each other and the magnetic claw (182) is released. Then the magnetic disk (181) and the magnetic claw (182) are released from the dewatering well pipe (2). Adsorption and fixation; then install the second section of the dewatering well pipe (2). First, follow the steps S100-S400. When connecting two adjacent sections of the dewatering well pipe (2), start the second motor (163) to rotate the entire second support plate (16), which will drive the dewatering well pipe (2) located above to rotate and adjust. When the locking block (241) is aligned with the locking block inlet (245), adjust the vertical jack (19) to continue to lower the dewatering well pipe (2) and rotate the dewatering well pipe (2) until the locking block (241) is inserted into the locking slot (242), thus completing the installation of multiple sections of the dewatering well pipe (2). The S600 is equipped with a water pump. The water pump is lowered to the bottom of the dewatering well. Multiple water pumps at the bottom of the dewatering wells are connected through water pipes. The water pumps are started to pump water out of the foundation pit, into the drainage ditch, or into a special water tank for recycling.

Images