Foundation pit dewatering well pipe and construction method thereof

Abstract

This invention provides a dewatering well pipe for foundation pits and its construction method, belonging to the field of foundation pit dewatering technology. The device includes several pipe bodies, a cap, a drainage pipe fastening assembly, an anti-settlement assembly, and a detection assembly. The pipe bodies are set in a concrete base layer, and the anti-settlement assembly is set on the upper surface of the concrete base layer and bolted to it. A drainage pipe runs through the inside of the pipe bodies, and the anti-settlement assembly is located on the outside of the pipe bodies. The anti-settlement assembly includes an installation block, a locking strip, two clamping plates, and a three-stage spring. The installation block is hollow, the locking strip is located on the rear side of the installation block, the two clamping plates are symmetrically arranged inside the installation block, and the three-stage spring is fixedly arranged between the two clamping plates. This device optimizes the structure of the dewatering well pipe and solves the problem that during foundation pit settlement, the well pipe descends with the settlement, its position shifts, and its location becomes undetectable, rendering the groundwater unusable.

Description

Technical Field

[0001] This invention belongs to the field of foundation pit dewatering well technology, specifically, it relates to a foundation pit dewatering well pipe and its construction method. Background Technology

[0002] Generally, in the process of foundation pit engineering or in-situ remediation of contaminated soil, it is often necessary to first take dewatering measures for the groundwater in the construction area, that is, to arrange multiple rows of dewatering wells within the foundation pit or contaminated soil treatment area to extract a certain amount of groundwater.

[0003] In traditional foundation pit dewatering projects, dewatering wells are removed along with the excavated soil. Excess wells are then directly cut off, rendering them unusable and considered construction waste. Furthermore, during the drainage process, the foundation pit settles, causing the well pipes to descend and shift in position within the dewatering well. Traditional dewatering wells lack a structure to detect the position of the well pipes, making it impossible to determine if they have shifted, thus affecting their normal use. Moreover, the groundwater directly pumped from the dewatering wells contains impurities and cannot be used directly; direct discharge would cause environmental pollution. Summary of the Invention

[0004] This invention provides a dewatering well pipe for foundation pits and its construction method, which optimizes the structure of the dewatering well pipe and solves the problem that when the foundation pit settles, the well pipe will sink with the settlement of the foundation pit, and its position will be displaced, making it impossible to know and the groundwater cannot be used.

[0005] In view of the above problems, the technical solution proposed by the present invention is as follows:

[0006] This invention provides a foundation pit dewatering well pipe, comprising several pipe bodies, caps, drainage pipe fastening components, anti-settlement components, and detection components. The pipe bodies are set in a concrete base layer. The anti-settlement components are set on the upper surface of the concrete base layer and are bolted to the concrete base layer. A drainage pipe runs through the inside of the pipe body. The drainage pipe fastening components are set on the inner side of the pipe body. A filter screen is sleeved on the outer bottom of the pipe body.

[0007] The anti-settlement component is disposed on the outside of the pipe body, and the anti-settlement component includes a mounting block, a locking strip, two clamping plates and a three-stage spring;

[0008] The detection component includes a controller, an ultrasonic liquid level detection unit, a verticality detection unit, a data transmission module, a data processing module, and a wireless communication module. The controller and the wireless communication module are located inside the cap. The ultrasonic liquid level detection unit is located on the inner wall of the top of the tube body. The verticality detection unit is suspended near the upper end of the tube body. The controller communicates with the receiving terminal through the wireless communication module.

[0009] The data processing module includes a data comparison unit, a data feedback unit, and a data output unit. The controller is communicatively connected to the ultrasonic liquid level detection unit, the verticality detection unit, the data transmission module, and the data processing module. The ultrasonic liquid level detection unit is an ultrasonic sensor, and the verticality detection unit is a clinometer. The data comparison unit compares the data detected by the ultrasonic liquid level detection unit and the verticality detection unit with preset standard data values ​​to obtain the numerical difference. The data feedback unit performs a secondary calculation on the numerical difference obtained by the data comparison unit. A difference level is set in the data feedback unit, and the numerical difference obtained by the data comparison unit is compared through the data feedback unit. The data output unit sends the calculated numerical difference to the controller.

[0010] As a preferred embodiment of the present invention, the upper end of the tube body is provided with an installation groove, the inside of the installation groove is provided with a locking block, a primary spring is provided between the locking block and the installation groove, the upper end of the locking block is provided with a locking groove, and the outermost end near the locking groove is provided with a protruding end, the cap is provided at the upper end of the tube body, the bottom of the cap is provided with an insertion post adapted to the locking block, and two support plates are fixedly provided at the upper end of the cap, the support plates being symmetrically arranged.

[0011] As a preferred embodiment of the present invention, the tube body comprises a top tube body, an assembled tube body, and a bottom tube body. The top tube body is connected to the cap. The assembled tube body is disposed between the top tube body and the bottom tube body. The bottom tube body is disposed at the bottom of the tube body. The ends of the top tube body and the assembled tube body are provided with the locking block and the insert post. The upper end of the bottom tube body is provided with the locking block, and the bottom end is not provided with the insert post. The bottom of the top tube body, the assembled tube body, and the cap are provided with a connecting groove for installing the insert post. A gap is provided between the outer side of the insert post and the inner wall of the connecting groove for inserting the locking block.

[0012] As a preferred embodiment of the present invention, the two ends of the primary spring are fixedly connected to the tube body and the locking block, respectively. The upper end of the tube body is provided with four locking blocks, which are arranged in a circular array. The locking blocks are made of rubber, and slots adapted to the protruding end are opened on both sides near the rear end of the insertion post. The insertion post and the locking blocks are connected through the slots.

[0013] As a preferred embodiment of the present invention, damping pads are fixedly installed at both ends of the primary spring, and the primary spring is fixedly connected to the locking block and the tube body respectively through the damping pads. The locking block and the tube body are movably connected through the primary spring and the mounting groove.

[0014] As a preferred embodiment of the present invention, the mounting block is hollow, the locking strip is disposed on the rear side of the mounting block, the two clamping plates are symmetrically disposed inside the mounting block, and the three-stage spring is fixedly disposed between the two clamping plates.

[0015] The tube body has slots on both sides corresponding to the locking strip. The mounting block is connected to the tube body through the locking strip and the slots. The tube body has at least two symmetrically arranged slots on both sides. The clamping plate has protrusions at both ends. The inner wall of the mounting block has movable grooves that fit the protrusions. The clamping plate and the mounting block are slidably connected through the protrusions and the movable grooves.

[0016] As a preferred embodiment of the present invention, the drain pipe fastening assembly includes a fastening plate, a movable column, and a secondary spring. The fastening plate is arc-shaped, the movable column is fixed at the rear center of the fastening plate, the rear end of the secondary spring is embedded in the inner wall of the pipe body, and the other end of the secondary spring is fixed to the rear end of the movable column.

[0017] As a preferred embodiment of the present invention, the movable column and the tube body are movably connected by the secondary spring. Guide blocks are fixedly provided on both sides of the rear end of the movable column. The inner wall of the tube body is provided with guide protrusions adapted to the guide blocks. The guide protrusions are provided on both sides of the secondary spring and are fixedly connected to the tube body. The fastening plate and the clamping plate are both made of natural rubber or silicone rubber.

[0018] As a preferred embodiment of the present invention, both the upper surfaces of the pipe body and the cap are provided with reserved holes adapted to the drain pipe. The pipe body and the cap are coaxially arranged. A water turbine blade is provided at the bottom end of the drain pipe. An installation rod is provided between the water turbine blade and the drain pipe. At least three installation rods are provided on the inner side of the bottom end of the drain pipe. The ends of the installation rods are fixedly connected to the drain pipe. The upper ends of the water turbine blades are rotatably connected to the installation rods.

[0019] On the other hand, a construction method for a foundation pit dewatering well pipe includes the following steps:

[0020] S1. Based on the depth of the dewatering well, insert the adjacent assembled pipe bodies into the clamping block using the insert pins, and secure the insert pins with the clamping block and the protruding end to quickly assemble the assembled pipe bodies together.

[0021] S2. Before lowering the pipe, wrap the filter screen around the bottom of the bottom pipe body. Place the assembled pipe body into the dewatering well. Fill the gap between the pipe body and the dewatering well with filler. Use the dynamic water gravel filling method to fill the filler evenly and slowly from all around the well. Then pour concrete on the surface of the filler. On the exposed part of the top pipe body, install the installation block on the outside. The installation block abuts against the surface of the concrete base. Insert the bolt through the installation block into the concrete base. The pipe body is then erected on the surface of the concrete base.

[0022] S3. Before inserting the drain pipe, use a compressed air machine to clean the well. If the submersion ratio in the well is insufficient, clean water should be injected. The well must be cleaned until the water is clear and the sand is clean. Then, the drain pipe is inserted through the cap into the pipe body. The fastening plate inside the pipe body is used to abut against the outer surface of the drain pipe to stabilize the position of the drain pipe.

[0023] S4. Start the water pump in the steel casing. The groundwater is first filtered through the filter screen. When the water pump is pumping water, the flow of water drives the water wheel blades at the bottom of the drain pipe to rotate. The rotation of the water wheel blades drives the water between the drain pipe and the pipe body to rotate together, and the mud and sludge in the groundwater are separated from the water.

[0024] S5. During the drainage process, the ultrasonic liquid level detection unit detects the liquid level height in the pipe, the verticality detection unit detects whether the pipe has shifted or tilted, and the data comparison unit in the data processing module compares the detected data with the preset standard data value to obtain the numerical difference. Then, the data feedback unit performs a second calculation on the obtained numerical difference. Finally, the data output unit sends the calculated numerical difference to the controller and then to the receiving terminal via the wireless communication module for staff to view the data.

[0025] S6. When the excavation of the foundation pit is completed and the bottom slab reinforcement is poured, it is necessary to cut the pipe for the dewatering well and weld the water-stop ring. At this time, the pipe cutting can be completed by simply removing the top cap and the pipe body. Finally, the water-stop ring is welded.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] (1) The present invention designs the pipe body in sections, and the pipe body can be assembled according to the different depths of the dewatering well. The pipe body is connected to the plug by elastic clips and the plug is tightened again by the connecting groove, which improves the firmness of the assembly between the pipe bodies. After the drainage is completed, only the uppermost pipe body needs to be pulled out and the water-stop wing ring is welded to complete the whole work. The removed pipe body can continue to be used, which will not cause waste and will not become construction waste.

[0028] (2) The present invention inserts mounting blocks into both sides of the uppermost pipe body, inserts bolts through the mounting blocks into the concrete base layer, and uses the force of the clamping plate and the three-stage spring in the mounting block to make the clamping plate stick tightly to the outer surface of the bolt, thereby fastening the connection between the mounting block and the bolt, thus fixing the upper end of the pipe body to the surface of the concrete base layer and preventing the pipe body from sinking with the settlement of the dewatering well.

[0029] (3) The present invention uses ultrasonic sensors and inclinometers to detect the groundwater level and tilt displacement of the pipe body. The detected data is compared with the preset standard data values ​​to obtain the numerical difference, thereby obtaining the changes in liquid level and tilt angle. The data feedback unit performs secondary calculations and sends the calculated numerical difference to the controller, so that the staff can immediately grasp the drainage status of the drainage well and the changes in the pipe body and can respond immediately.

[0030] (4) The present invention drives the water turbine blades to rotate by water flow, which in turn drives the water between the drainage pipe and the pipe body to rotate together, forming a vortex. The mud in the groundwater flows outward under the action of centripetal force, and the mud and water are separated, making the water discharged from the drainage pipe cleaner, so that the discharged water can be used to clean the construction ground, etc.

[0031] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of a foundation pit dewatering well pipe disclosed in this invention;

[0033] Figure 2 This is a partial structural schematic diagram of a foundation pit dewatering well pipe disclosed in this invention;

[0034] Figure 3 This is a partial structural diagram of part A of a foundation pit dewatering well pipe disclosed in this invention;

[0035] Figure 4 This is a partial structural schematic diagram of the tube body disclosed in this invention;

[0036] Figure 5 This is a schematic diagram of part B of the partial structural diagram of the tube body disclosed in this invention;

[0037] Figure 6 This is a schematic diagram of part C of the partial structural diagram of the tube body disclosed in this invention;

[0038] Figure 7 This is a cross-sectional structural diagram of the anti-settlement component disclosed in this invention;

[0039] Figure 8 This is a schematic diagram of the installation of a foundation pit dewatering well pipe disclosed in this invention;

[0040] Figure 9 This is a partial structural schematic diagram of the drainage pipe disclosed in this invention;

[0041] Figure 10 This is a block diagram of the electrical connection of a foundation pit dewatering well pipe disclosed in this invention;

[0042] Figure 11 This is a block diagram of a data processing module for a foundation pit dewatering well pipe disclosed in this invention;

[0043] Figure 12 This is a flowchart of the secondary calculation of a foundation pit dewatering well pipe disclosed in this invention;

[0044] Explanation of reference numerals in the attached drawings: 101, pipe body; 102, mounting groove; 103, locking block; 1031, protruding end; 1032, primary spring; 1033, damping pad; 1034, slot; 104, reserved hole; 105, insertion post; 106, connecting groove; 107, slot; 201, cap; 202, support plate; 3, drain pipe fastening assembly; 301, fastening plate; 302, movable column; 303, secondary spring; 304, guide block; 305, guide ridge; 4, anti-settlement assembly; 401, mounting block; 402, locking strip; 403. Clamping plate; 404. Protrusion; 405. Movable groove; 406. Three-stage spring; 5. Concrete base layer; 6. Bolt; 7. Drainage pipe; 8. Processor; 9. Ultrasonic liquid level detection unit; 10. Verticality detection unit; 11. Data transmission module; 12. Data processing module; 1201. Data comparison unit; 1202. Data feedback unit; 1203. Data output unit; 13. Wireless communication module; 14. Receiving terminal; 15. Outer filter screen; 16. Water turbine blade; 17. Mounting rod; 18. Detection component. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0049] Furthermore, 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 number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] Example 1

[0051] See attached document Figure 1-11 As shown, the present invention provides a technical solution: a foundation pit dewatering well pipe, comprising several pipe bodies 101, caps 201, drainage pipe fastening components 3, anti-settlement components 4, and detection components 18. The pipe bodies 101 are set in a concrete base layer 5, the anti-settlement components 4 are set on the upper surface of the concrete base layer 5, and bolts 6 are provided between the anti-settlement components 4 and the concrete base layer 5. A drainage pipe 7 passes through the inside of the pipe body 101, the drainage pipe fastening components 3 are set on the inner side of the pipe body 101, and a filter screen is sleeved on the outer side of the bottom of the pipe body 101.

[0052] The anti-settlement component 4 is located on the outside of the pipe body 101. The anti-settlement component 4 includes a mounting block 401, a locking strip 402, two clamping plates 403 and a three-stage spring 406.

[0053] The detection component 18 includes a controller, an ultrasonic liquid level detection unit 9, a verticality detection unit 10, a data transmission module 11, a data processing module 12, and a wireless communication module 13. The controller and the wireless communication module are located inside the cap 201. The ultrasonic liquid level detection unit 9 is located on the inner wall of the top of the pipe body 101. The verticality detection unit 10 is suspended near the upper end of the pipe body 101. The controller is connected to the receiving terminal 14 through the wireless communication module 13.

[0054] The data processing module 12 includes a data comparison unit 1201, a data feedback unit 1202, and a data output unit 1203. The data comparison unit 1201 compares the data detected by the ultrasonic liquid level detection unit 9 and the verticality detection unit 10 with preset standard data values ​​to obtain a numerical difference. The controller sets the standard data value for the data comparison unit 1201. The data comparison unit 1201 then compares and calculates the numerical difference between the detected real-time data value and the standard data value to obtain the first difference. The data feedback unit 1202 performs a secondary calculation on the numerical difference obtained by the data comparison unit 1201. The data feedback unit 1202 sets the difference level, which can be low, medium, or high. The system is divided into four levels: high, medium, and dangerous. The system determines which level in the data feedback unit 1202 a value belongs to based on the first difference value. For example, if the standard data value of the inclinometer tube's tilt angle is 0, and the tube body 101 tilts, the detected tilt angle of the inclinometer tube is 1.7 degrees, and the first difference is 1.7 degrees. The values ​​of low, medium, high, and dangerous in the data feedback unit 1202 are 1.0-1.5 degrees, 1.6-2.0 degrees, 2.1-2.5 degrees, and 2.6 degrees, respectively. The first difference belongs to the medium level. Then, the calculated level signal is sent to the controller through the data output unit 1203, so that the staff can keep abreast of the drainage status of the drainage well and the changes in the tube body 101 and can respond in time.

[0055] The embodiments of the present invention are also implemented through the following technical solutions:

[0056] The upper end of the tube body 101 is provided with an installation groove 102. The installation groove 102 is provided with a locking block 103. A first-stage spring 1032 is provided between the locking block 103 and the installation groove 102. The upper end of the locking block 103 is provided with a locking groove 1034. The outermost end near the locking groove 1034 is provided with a protruding end 1031. The cap 201 is provided at the upper end of the tube body 101. The bottom of the cap 201 is provided with a plug 105 that is adapted to the locking block 103. Two support plates 202 are fixedly provided at the upper end of the cap 201. The support plates 202 are symmetrically arranged.

[0057] In an embodiment of the present invention, the tube body 101 comprises a top tube body, an assembled tube body, and a bottom tube body. The top tube body is connected to the cap 201. The assembled tube body is disposed between the top tube body and the bottom tube body. The bottom tube body is disposed at the bottom of the tube body. Both the top tube body and the assembled tube body are provided with a locking block 103 and a post 105 at their ends. The bottom tube body is provided with a locking block 103 at its upper end and no post 105 at its bottom. The bottom of the top tube body, the assembled tube body, and the cap 201 are provided with a connecting groove 106 for installing the post 105. A space is provided between the outer side of the post 105 and the inner wall of the connecting groove 106 for inserting the locking block 103. The tube body 101 is divided into three sections. The bottom tube body 101 is structurally different from the other two tube bodies 101, which facilitates the overall installation of the tube body 101. The bottom of the top tube body 101, the assembled tube body 101 and the cap 201 are provided with connecting grooves 106 for the insertion post 105. A gap is provided between the outer side of the insertion post 105 and the inner wall of the connecting groove 106 for the insertion of the locking block 103. After the insertion post 105 is connected to the locking block 103 through the connecting groove 106, the opened locking block 103 will be inserted into the connecting groove 106 and tightened again by the connecting groove 106, thereby improving the firmness of the connection of the tube body 101.

[0058] In an embodiment of the present invention, the two ends of the primary spring 1032 are fixedly connected to the tube body 101 and the locking block 103, respectively. Under the action of the primary spring 1032, the locking block 103 can move in the mounting groove 102 at the upper end of the tube body 101, so that the reaction force generated by the primary spring 1032 based on the weight pressure of the upper tube body 101 can press the locking block 103 against the connecting groove 106, thereby improving the firmness. Four locking blocks 103 are provided at the upper end of the tube body 101. The four locking blocks 103 are arranged in a ring array. The locking blocks 103 are made of rubber, so that the shape of the locking blocks 103 can be elastically deformed. Slots adapted to the protruding end 1031 are opened on both sides of the rear end near the insertion post 105. The insertion post 105 and the locking block 103 are inserted through the slots, and the slots facilitate the locking block 103 to be locked on both sides of the insertion post 105.

[0059] In an embodiment of the present invention, damping pads 1033 are fixedly installed at both ends of the primary spring 1032. The primary spring 1032 is fixedly connected to the locking block 103 and the tube body 101 respectively through the damping pads 1033. The locking block 103 and the tube body 101 are movably connected through the primary spring 1032 and the mounting groove 102. The damping pads 1033 stabilize the use of the primary spring 1032.

[0060] In an embodiment of the present invention, the mounting block 401 is hollow, the locking strip 402 is disposed on the rear side of the mounting block 401, the two clamping plates 403 are symmetrically disposed inside the mounting block 401, and the three-stage spring 406 is fixedly disposed between the two clamping plates 403.

[0061] The pipe body 101 has slots 107 on both sides corresponding to the retaining strips 402. The mounting block 401 is connected to the pipe body 101 via the retaining strips 402 and the slots 107. At least two symmetrically arranged slots 107 are provided on both sides of the pipe body 101. The mounting block 401 is secured in the slots 107 on both sides of the pipe body 101 by the retaining strips 402. The position of the slots 107 is not fixed and needs to be grooved on both sides according to the position of the pipe body 101 after it is placed into the dewatering well. The mounting block 401 is installed by grooving the pipe body 101 at both ends. The clamping plate 403 has protrusions 404 at both ends. The inner wall of the mounting block 401 has a groove that matches the protrusions 404. The movable groove 405 is provided. The clamping plate 403 and the mounting block 401 are slidably connected by the protrusion 404 and the movable groove 405. After the bolt 6 is inserted, the clamping plate 403 moves to both sides in the movable groove 405 inside the mounting block 401 through the protrusions 404 on both sides. At this time, the three-stage spring 406 between the clamping plates 403 will be stretched. Through the reaction force of the three-stage spring 406, the clamping plate 403 can be tightly attached to the outer surface of the bolt 6, and the bolt 6 is fixed to the surface of the concrete base 5, thereby fixing the upper end of the pipe body 101 to the surface of the concrete base 5 and preventing the pipe body 101 from sinking with the settlement of the dewatering well.

[0062] In an embodiment of the present invention, the fastening assembly of the drain pipe 7 includes a fastening plate 301, a movable column 302, and a secondary spring 303. The fastening plate 301 has an arc-shaped design. The movable column 302 is fixed at the rear center of the fastening plate 301. The rear end of the secondary spring 303 is embedded in the inner wall of the pipe body 101, and the other end of the secondary spring 303 is fixed to the rear end of the movable column 302.

[0063] In an embodiment of the present invention, the movable column 302 and the pipe body 101 are movably connected by a secondary spring 303. After the drain pipe 7 is inserted, the movable column 302 on the fastening plate 301 moves backward to compress the secondary spring 303. Under the reaction force of the secondary spring 303, the fastening plate 301 is pressed tightly against the outside of the drain pipe 7, stabilizing the position of the drain pipe 7 and preventing it from shaking due to the impact of water during drainage. Guide blocks 304 are fixedly provided on both sides of the rear end of the movable column 302, and the inner wall of the pipe body 101 is provided with guide blocks 304. The guide protrusion 305 is adapted to the block 304. The guide protrusion 305 is set on both sides of the secondary spring 303 and is fixedly connected to the tube body 101. The guide block 304 and the guide protrusion 305 cooperate to guide the direction of the fastening plate 301 to move backward, preventing the position of the fastening plate 301 from shifting, so that the fastening plate 301 and the clamping plate 403 are both made of natural rubber or silicone rubber, so that the fastening plate 301 can be adapted to the outer curvature of the tube body 101, and the clamping plate 403 can be adapted to the curvature of the bolt 6.

[0064] In an embodiment of the present invention, the controller is communicatively connected to the ultrasonic liquid level detection unit 9, the verticality detection unit 10, the data transmission module 11, and the data processing module 12. The ultrasonic liquid level detection unit 9 is an ultrasonic sensor that emits ultrasonic pulses to the liquid surface inside the tube 101. After a period of time, the ultrasonic sensor receives the signal reflected back from the liquid surface. Based on the time difference between the ultrasonic sensor emitting and receiving the ultrasonic waves, the distance from the liquid surface to the ultrasonic sensor is calculated. The verticality detection unit 10 is a clinometer. The initial angle of the clinometer displacement is established through the clinometer. Subsequent observations will show the change in angular displacement when the tube 101 moves. By comparing the current observation data with the initial observation data, the amount of lateral displacement change can be determined, and the tilt angle of the tube 101 can be obtained.

[0065] In addition, when the inclinometer probe slides and measures segment by segment from bottom to top inside the inclinometer tube, the sensor inside the probe sensitively reflects the change in the tilt angle of the inclinometer tube at each depth segment. Then, based on the tilt angle, the horizontal displacement increment at different elevations is calculated. Starting from the measuring point at the bottom of the inclinometer tube, the horizontal displacement at any elevation can be obtained by accumulating segment by segment.

[0066] In an embodiment of the present invention, the upper surfaces of the pipe body 101 and the cap 201 are both provided with reserved holes 104 adapted to the drainage pipe 7. The pipe body 101 and the cap 201 are coaxially arranged. A water turbine blade 16 is provided at the bottom end of the drainage pipe 7. An installation rod 17 is provided between the water turbine blade 16 and the drainage pipe 7. At least three installation rods 17 are provided on the inner side of the bottom end of the drainage pipe 7. The ends of the installation rods 17 are fixedly connected to the drainage pipe 7. The upper ends of the water turbine blade 16 are rotatably connected to the installation rods 17. The water turbine blade 16 is installed at the bottom end of the drainage pipe 7 through the installation rods 17. When the drainage pipe 7 is pumping water, the water flow drives the water turbine blade 16 to rotate, which drives the water between the drainage pipe 7 and the pipe body 101 to rotate together, forming a vortex. The mud in the groundwater flows outward under the action of centripetal force, and the mud and water are separated, making the water discharged from the drainage pipe 7 cleaner.

[0067] Example 2

[0068] Another embodiment of the present invention provides a method for using a foundation pit dewatering well pipe, comprising the following steps:

[0069] Specifically, the steps include the following:

[0070] S1. Assemble the pipe body 101 to a suitable length according to the depth of the dewatering well. The adjacent assembled pipe bodies 101 are connected by inserting the insert post 105 into the clamping block 103. The clamping block 103 is inserted into the connecting groove 106 at the bottom of the assembled pipe body 101. The insert post 105 is fastened by the clamping block 103 and the protruding end 1031. The clamping block 103 is pressed and fastened by the connecting groove 106, thereby quickly assembling the assembled pipe bodies 101 together. The top pipe body 101 and the bottom pipe body 101 are assembled with the assembled pipe body 101.

[0071] Before lowering the S2 pipe, wrap the filter screen around the bottom of the bottom pipe body 101. Place the assembled pipe body 101 into the dewatering well. Fill the gap between the pipe body 101 and the dewatering well with filler material. Use the dynamic water gravel filling method to fill the filler material evenly and slowly from all around the well. Then pour concrete on the surface of the filler material. On the exposed part of the top pipe body 101, install the mounting block 401 on the outside through the clamping strip 402 and the connecting groove 106. The mounting block 401 abuts against the surface of the concrete base layer 5. Bolts are then installed. 6. The clamping plate 403 inside the mounting block 401 is inserted into the concrete base layer 5. The clamping plate 403 is opened by the bolt 6 and moves inside the mounting block 401. Based on the force of the three-stage spring 406 between the clamping plates 403, the clamping plate 403 is tightly attached to the outside of the bolt 6, so that the pipe body 101 can be erected on the surface of the concrete base layer 5 to prevent the pipe body 101 from sinking into the dewatering well when the dewatering well settles. Then, the cap 201 is inserted into the uppermost end of the pipe body 101.

[0072] S3. Before inserting the drain pipe 7, use a compressed air machine to clean the well. If the submersion ratio in the well is insufficient, clean water should be injected. The well must be cleaned until the water is clear and the sand is clean. Then, the drain pipe 7 passes through the reserved hole 104, through the cap 201, and enters the pipe body 101. The drain pipe 7 is supported by the support plate 202 on the cap 201. The fastening plate 301 inside the pipe body 101 abuts against the outer surface of the drain pipe 7. When the drain pipe 7 is inserted, the fastening plate 301 is expanded and moves to both sides through the guide block 304 and the guide protrusion 305. The secondary spring 303 on the back of the fastening plate 301 is compressed. The reaction force of the secondary spring 303 presses the fastening plate 301 against the outer surface of the drain pipe 7 to stabilize the position of the drain pipe 7.

[0073] S4. Start the water pump in the steel casing. The groundwater is first filtered through the filter screen. When the water pump is pumping water, the flow of water drives the water wheel blades 16 at the bottom of the drainage pipe 7 to rotate. The rotation of the water wheel blades 16 drives the water between the drainage pipe 7 and the pipe body 101 to rotate together, forming a vortex. The mud in the groundwater flows outward under the action of centripetal force, and the mud and water are separated, making the water discharged from the drainage pipe 7 cleaner.

[0074] S5. During the drainage process, the ultrasonic level detection unit 9 uses an ultrasonic sensor to detect the liquid level in the pipe 101. The verticality detection unit 10 uses a slewing tube to measure the angle between the slewing tube and the inner wall of the pipe 101, with the inner wall of the pipe 101 as the reference and the vertical line as the vertical line. This measures whether the pipe 101 has shifted or tilted. The data is transmitted to the data processing module 12. The data comparison unit 1201 compares the data detected by the ultrasonic sensor and the slewing tube with the preset standard data value to obtain the numerical difference. Then, the data feedback unit 1202 performs a second calculation on the numerical difference. Finally, the data output unit 1203 sends the calculated numerical difference to the controller and then to the receiving terminal 14 via the wireless communication module for staff to view.

[0075] S6. When the excavation of the foundation pit is completed and the bottom slab reinforcement is poured, it is necessary to cut the pipe for the dewatering well and weld the water-stop ring. At this time, the pipe cutting can be completed by simply removing the top cap 201 and the pipe body 101. Finally, the water-stop ring is welded.

[0076] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A foundation pit dewatering well pipe, characterized in that, It includes several pipe bodies (101), caps (201), drainage pipe fastening components (3), anti-settlement components (4) and detection components (18). The pipe bodies (101) are set in a concrete base layer (5). The anti-settlement components (4) are set on the upper surface of the concrete base layer (5) and are connected to the concrete base layer (5) by bolts (6). A drainage pipe (7) runs through the inside of the pipe body (101). The drainage pipe fastening components (3) are set on the inside of the pipe body (101). A filter screen is fitted on the bottom outer side of the pipe body (101). The upper end of the tube body (101) is provided with an installation groove (102), and a locking block (103) is provided inside the installation groove (102). A first-stage spring (1032) is provided between the locking block (103) and the installation groove (102). The upper end of the locking block (103) is provided with a locking groove (1034), and a protruding end (1031) is provided near the outermost end of the locking groove (1034). The cap (201) is provided at the upper end of the tube body (101). The bottom of the cap (201) is provided with a plug (105) that is adapted to the locking block (103). Two support plates (202) are fixedly provided at the upper end of the cap (201). The support plates (202) are symmetrically arranged. The tube body (101) consists of a top tube body, an assembled tube body, and a bottom tube body. The top tube body is connected to the cap (201). The assembled tube body is located between the top tube body and the bottom tube body. The bottom tube body is located at the bottom of the tube body. The ends of the top tube body and the assembled tube body are provided with the locking block (103) and the insert post (105). The upper end of the bottom tube body is provided with the locking block (103), and the bottom is not provided with the insert post (105). The bottom of the top tube body, the assembled tube body, and the cap (201) is provided with a connecting groove (106) for installing the insert post (105). A gap is provided between the outer side of the insert post (105) and the inner wall of the connecting groove (106) for inserting the locking block (103). The drain pipe fastening assembly (3) includes a fastening plate (301), a movable column (302), and a secondary spring (303). The fastening plate (301) is arc-shaped. The movable column (302) is fixed at the rear center of the fastening plate (301). The rear end of the secondary spring (303) is embedded in the inner wall of the pipe body (101). The other end of the secondary spring (303) is fixed to the rear end of the movable column (302). The anti-settlement component (4) is disposed on the outside of the pipe body (101). The anti-settlement component (4) includes a mounting block (401), a retaining strip (402), two clamping plates (403) and a three-stage spring (406). The mounting block (401) is hollow. The retaining strip (402) is disposed on the rear side of the mounting block (401). The two clamping plates (403) are symmetrically disposed inside the mounting block (401). The three-stage spring (406) is fixedly disposed between the two clamping plates (403). The tube body (101) has slots (107) on both sides corresponding to the clips (402). The mounting block (401) is connected to the tube body (101) through the clips (402) and the slots (107). The tube body (101) has at least two symmetrically arranged slots (107) on both sides. The clamping plate (403) has protrusions (404) at both ends. The inner wall of the mounting block (401) has a movable groove (405) adapted to the protrusions (404). The clamping plate (403) and the mounting block (401) are slidably connected through the protrusions (404) and the movable groove (405). The detection component (18) includes a controller, an ultrasonic liquid level detection unit (9), a verticality detection unit (10), a data transmission module (11), a data processing module (12), and a wireless communication module (13). The controller and the wireless communication module are located inside the cap (201). The ultrasonic liquid level detection unit (9) is located on the inner wall of the top of the tube body (101). The verticality detection unit (10) is suspended near the upper end of the tube body (101). The controller is connected to the receiving terminal (14) through the wireless communication module (13). The data processing module (12) includes a data comparison unit (1201), a data feedback unit (1202), and a data output unit (1203). The controller is communicatively connected to the ultrasonic liquid level detection unit (9), the verticality detection unit (10), the data transmission module (11), and the data processing module (12). The ultrasonic liquid level detection unit (9) is an ultrasonic sensor, and the verticality detection unit (10) is a clinometer. The data comparison unit (1201) is used to compare the data of the ultrasonic liquid level detection unit (9) with the data of the verticality detection unit (10). The data detected by the unit (9) and the verticality detection unit (10) are compared with the preset standard data value to obtain the numerical difference. The data feedback unit (1202) is used to perform a secondary calculation on the numerical difference obtained by the data comparison unit (1201). The difference level is set in the data feedback unit (1202). The numerical difference obtained by the data comparison unit (1201) is compared through the data feedback unit (1202). The data output unit (1203) is used to send the calculated numerical difference to the controller.

2. The well pipe according to claim 1, wherein The two ends of the primary spring (1032) are fixedly connected to the tube body (101) and the locking block (103) respectively. The upper end of the tube body (101) is provided with four locking blocks (103), which are arranged in a ring array. The locking blocks (103) are made of rubber. The two sides of the rear end of the insert post (105) are provided with slots that are adapted to the protruding end (1031). The insert post (105) and the locking block (103) are connected through the slots.

3. The well pipe according to claim 2, wherein Damping pads (1033) are fixedly installed at both ends of the primary spring (1032). The primary spring (1032) is fixedly connected to the locking block (103) and the tube body (101) respectively through the damping pads (1033). The locking block (103) and the tube body (101) are movably connected through the primary spring (1032) and the mounting groove (102).

4. The well pipe according to claim 1, wherein The movable column (302) and the tube body (101) are movably connected by the secondary spring (303). Guide blocks (304) are fixedly provided on both sides of the rear end of the movable column (302). The inner wall of the tube body (101) is provided with guide protrusions (305) that are adapted to the guide blocks (304). The guide protrusions (305) are provided on both sides of the secondary spring (303) and are fixedly connected to the tube body (101). The fastening plate (301) and the clamping plate (403) are both made of natural rubber or silicone rubber.

5. The well pipe according to claim 1, wherein The upper surfaces of the pipe body (101) and the cap (201) are provided with reserved holes (104) adapted to the drain pipe (7). The pipe body (101) and the cap (201) are coaxially arranged. The bottom end of the drain pipe (7) is provided with a water turbine blade (16). An installation rod (17) is provided between the water turbine blade (16) and the drain pipe (7). At least three installation rods (17) are provided on the inner side of the bottom end of the drain pipe (7). The end of the installation rod (17) is fixedly connected to the drain pipe (7). The upper end of the water turbine blade (16) is rotatably connected to the installation rod (17).

6. A construction method for a foundation pit dewatering well pipe, wherein the construction method is applied according to any one of claims 1-5, comprising the following steps: S1. Based on the depth of the dewatering well, insert the adjacent assembled pipe bodies (101) into the locking block (103) through the insert (105), and fasten the insert (105) through the locking block (103) and the protruding end (1031) to quickly assemble the assembled pipe bodies (101) together. S2. Before lowering the pipe, wrap the filter screen around the bottom of the bottom pipe body (101), put the assembled pipe body (101) into the dewatering well, fill the gap between the pipe body (101) and the dewatering well with filler, fill the filler with dynamic water gravel filling method from all sides of the well evenly and slowly, and then pour concrete on the surface of the filler. On the exposed part of the top pipe body (101), install the installation block (401) on the outside. The installation block (401) abuts against the surface of the concrete base (5), and insert the bolt (6) through the installation block (401) into the concrete base (5). The pipe body (101) is erected on the surface of the concrete base (5). S3. Before inserting the drain pipe (7), use a compressed air machine to clean the well. If the submersion ratio in the well is insufficient, clean water should be injected. The well must be cleaned until the water is clear and the sand is clean. Then, the drain pipe (7) passes through the cap (201) and enters the pipe body (101). The fastening plate (301) inside the pipe body (101) abuts against the outer surface of the drain pipe (7) to stabilize the position of the drain pipe (7). S4. Start the water pump in the steel casing. The groundwater is first filtered through the filter screen. When the water pump is pumping water, the flow of water drives the water wheel blades (16) at the bottom of the drainage pipe (7) to rotate. The rotation of the water wheel blades (16) drives the water between the drainage pipe (7) and the pipe body (101) to rotate together, and the mud and sludge in the groundwater are separated from the water. S5. During the drainage process, the liquid level height in the pipe body (101) is detected by the ultrasonic liquid level detection unit (9), and the verticality detection unit (10) is detected to see if the pipe body (101) has shifted or tilted. The data comparison unit (1201) in the data processing module (12) compares the detected data with the preset standard data value to obtain the numerical difference. Then, the data feedback unit (1202) performs a second calculation on the obtained numerical difference. Finally, the data output unit (1203) sends the calculated numerical difference to the controller and sends it to the receiving terminal (14) through the wireless communication module for staff to view the data. S6. When the excavation of the foundation pit is completed and the bottom slab reinforcement is poured, it is necessary to cut the pipe for the dewatering well and weld the water-stop wing ring. At this time, the pipe cutting can be completed by simply removing the top cap (201) and the pipe body (101). Finally, the water-stop wing ring is welded.

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