Anti-floating anchor rod integrated anti-seepage device and construction method applying anti-floating anchor rod integrated anti-seepage device

Abstract

The invention discloses an anti-floating anchor rod integrated anti-seepage device and a construction method applying the same, and relates to the technical field of anti-floating anchor rods, the anti-floating anchor rod integrated anti-seepage device comprises an anchor cable combination body, and further comprises a collecting sleeve, an anti-floating anchor rod integrated anti-seepage device, an anti-floating anchor rod integrated anti-seepage device, an anti-floating anchor rod integrated anti-seepage device and an anti-floating anchor rod integrated anti-seepage device, the vibrating rod and the vibrating head are used for stretching into the collecting sleeve; the distance measuring mechanism is mounted on a hose for dragging the vibrating head by the vibrating rod and is close to the vibrating head; the lifting mechanism is arranged outside the upper opening of the drill hole and used for driving the vibrating rod to ascend and descend in the drill hole, and at least one lifting part of the lifting mechanism is connected with a hose of the vibrating rod; wherein the anchor cable assembly is inserted into the collecting sleeve, the anchor cable assembly comprises multiple groups of steel strands, a bracket and a grouting pipe, the multiple groups of steel strands are annularly arranged, the grouting pipe is located among the multiple groups of steel strands, the vibrating rod is located among the steel strands, and the distance measuring direction of the distance measuring mechanism faces the side. The construction method has the effects of reducing the construction cost and improving the construction efficiency.

Description

Technical Field

[0001] This application relates to the field of anti-buoyancy anchor technology, and in particular to an integrated anti-buoyancy anchor seepage prevention device and a construction method for using it. Background Technology

[0002] Anti-buoyancy anchors are load-bearing components used in engineering to resist the upward movement of underground structures due to the buoyancy of groundwater. For example, the ground structure of multi-story basements that are deep underground is frequently damaged by buoyancy, and anti-buoyancy anchors (cables) are used as an effective anti-buoyancy measure in such cases.

[0003] However, anti-buoyancy anchors face many challenges. For example, when passing through one or more highly permeable strata, the abundant and flowing groundwater and the development of karst fissures can lead to over-grouting or under-grouting during the grouting process, resulting in insufficient pull-out resistance after construction.

[0004] One existing approach is to guide on-site construction by filling the borehole with a diameter 2-3 times the original design diameter, or to use anti-uplift piles and large-area shotcreting to reinforce the soil layer before and after the initial drilling to meet testing requirements. These methods not only waste a large amount of grouting material, but also significantly increase construction costs and extend the construction period.

[0005] Therefore, a new technical solution is proposed. Summary of the Invention

[0006] To reduce construction costs and improve construction efficiency, this application provides an integrated anti-buoyancy anchor bolt seepage prevention device and construction method.

[0007] Firstly, this application provides an integrated anti-buoyancy anchor bolt seepage prevention device, which adopts the following technical solution: An integrated anti-buoyancy anchor bolt seepage prevention device includes an anchor cable assembly, and further includes: A constricting sleeve, which is placed in a borehole, extends along the depth of the borehole and is open at the top and closed at the bottom; A vibrating rod, the vibrating head of which is used to insert into the gathering sleeve; A ranging mechanism, which is mounted on the flexible hose of the vibratory rod towing the vibratory head and close to the vibratory head; and, A lifting mechanism is provided outside the opening in the borehole to drive the vibrating rod to rise and fall in the borehole, and at least one lifting part is connected to the flexible hose of the vibrating rod. The anchor cable assembly is inserted into the retaining sleeve. The anchor cable assembly includes multiple parallel steel strands, brackets, and grouting pipes. The multiple steel strands are divided into multiple groups and arranged in a circumferential manner. The grouting pipes are located between the multiple groups of steel strands. The vibrating rods are located between the steel strands. The distance measuring direction of the distance measuring mechanism is to the side.

[0008] Optionally, the ranging mechanism includes a non-contact ranging component and an annular track for connecting to the hose. The ranging mechanism is movably connected to the annular track. A geared motor for driving the non-contact ranging component to rotate along the annular track is installed on the annular track. A protective cover is provided outside the ranging mechanism. The protective cover has a detection window that matches the detection part of the ranging mechanism. A shock-absorbing mechanism for reducing the impact of the vibrator's vibration on the ranging mechanism is provided between the annular track and the hose. The shock-absorbing mechanism includes a rubber sheet, an air cushion plate, or a double-layer plate with built-in springs.

[0009] Optionally, the non-contact ranging assembly includes a metal detector and a microcontroller. The microcontroller is electrically connected to the metal detector, or the microcontroller is connected to a current transformer, which is installed on the circuit of the receiver in the metal detector for receiving the magnetic field. The microcontroller is electrically connected to a geared motor and configured as follows: If the current position is in the initial position correction stage of the non-contact ranging component, the geared motor is controlled to drive the non-contact ranging group to move around the circular track once, and the detection data set obtained from the metal detector head is acquired simultaneously. By comparing and analyzing the detection data set, the detection data with the smallest interval are obtained and defined as the target location data. The system reads the target position data at the specified time and calculates the time t1 required to rotate to the target position based on the start time of the rotation action. The system then controls the reduction motor based on the time t1.

[0010] Optionally, the system also includes a control console, which includes a control host and a display electrically connected to the control host; the ranging mechanism further includes a wireless communication unit electrically connected to the non-detection ranging component, and the control console is data-connected to the wireless communication unit and the geared motor.

[0011] Optionally, the annular track includes a toothed ring, a gear, and a base plate. The base plate is annular and its inner side is connected to the hose of the vibrating rod via a shock-absorbing mechanism. The toothed ring is rotatably fitted onto the hose of the vibrating head. The gear is rotatably connected to the base plate. The gear is located inside the toothed ring and meshes with it. The gear is coaxially fixed with the output shaft of the reduction motor. The reduction motor is connected to the hose of the vibrating rod via a shock-absorbing mechanism.

[0012] Optionally, the lifting mechanism includes a telescopic component, a slewing component, a pulley assembly, and a chassis for placing on the ground; the slewing component is disposed on the upper surface of the chassis, and the slewing component is provided with a slewing part for rotating the telescopic component and connected to the telescopic component; the telescopic component is inclined and its end away from the chassis is connected to the pulley assembly, and the pulley assembly is used to connect the vibrator and to lift the vibrator.

[0013] Optionally, the telescopic assembly includes a telescopic rod and a hydraulic cylinder. The telescopic rod includes a fixed rod and a movable rod axially slidingly connected to the fixed rod. One end of the fixed rod is rotatably connected to the upper surface of the rotary assembly. The free end of the movable rod of the telescopic rod is fixedly connected to the pulley assembly. The cylinder body of the hydraulic cylinder is vertically arranged in the rotating part of the rotary assembly and fixedly connected to the rotary assembly. The end of the piston rod of the hydraulic cylinder is rotatably connected to the fixed rod of the telescopic rod.

[0014] Optionally, the pulley assembly includes a wheel seat, a pulley, a gear set, and a motor. The wheel seat is installed on the telescopic end of the telescopic assembly. The pulley is rotatably connected to the wheel seat, and the pulley's axial direction is horizontal. Two pulleys are arranged laterally and used to clamp the hose of the vibrating rod. The gear set is disposed on the wheel seat, and its input end and output end are respectively connected to the two pulleys. The motor is fixedly connected to the side of the wheel seat away from the pulley, and the motor output shaft is coaxially fixed with the input end of the gear set.

[0015] Secondly, this application provides an integrated anti-buoyancy anchor bolt seepage prevention construction method, which adopts the following technical solution: A method for constructing an integrated anti-buoyancy anchor for seepage prevention includes: drilling holes on the foundation surface and applying the integrated anti-buoyancy anchor device as described in any one of the above-mentioned methods to the drill holes; wherein the construction includes the following steps: Step 1: Pre-construction preparations, which include: A retaining sleeve is vertically inserted into the borehole, and the anchor cable assembly and grouting pipe are vertically inserted inside the retaining sleeve. The vibratory rod is clamped between two pulleys of the pulley assembly, and the motor drives the pulleys to rotate, so that the vibratory rod is vertically inserted into the depth of the borehole. Step 2, concrete vibration and testing, includes: Grouting is performed, and the concrete injected into the grouting pipe is vibrated with a vibrator. The feedback from the motor is used to evaluate whether the vibrator contacts the concrete after each drop. Feedback based on non-contact ranging components is used to assess whether the position of the vibrator and the steel strand is correct, and to assess whether it is tilted after contact with the concrete. Step 3, Vibrator posture correction, which includes: Based on the evaluation results in step two, the posture of the vibrator is adjusted using the lifting mechanism so that it is placed vertically in the concrete for vibration.

[0016] In summary, this application includes the following beneficial technical effects: the vibrator can compact the concrete, preventing concrete cracking or anchor cable slippage under subsequent stress, thus improving project safety; the automated detection of the ranging mechanism and the posture adjustment of the lifting mechanism replace manual judgment, reducing problems such as vibration position deviation and verticality exceeding the standard caused by insufficient operator experience, improving construction accuracy, avoiding the discovery of substandard vibration only after grouting is completed, eliminating the need for demolition and re-grouting, reducing construction costs, and improving construction efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a cross-sectional view of the structure in the borehole in this application; Figure 3 This is a schematic diagram of the specific structure of the ranging mechanism in this application; Figure 4 This is a schematic diagram of the operating console in this application; Figure 5 This is a cross-sectional view of the ranging mechanism in this application; Figure 6 This is a structural schematic diagram of the lifting mechanism in this application; Figure 7 This is a schematic diagram of the specific structure of the pulley mechanism in this application; Figure 8 This is a schematic diagram of the specific structure of the telescopic mechanism in this application; Figure 9 This is a top view of the lifting mechanism in this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Gathering sleeve; 2. Anchor cable assembly; 21. Steel strand; 22. Bracket; 23. Grouting pipe; 3. Vibrator; 31. Vibrator head; 32. Hoses; 4. Distance measuring mechanism; 41. Non-contact distance measuring component; 42. Circular track; 421. Gear ring; 422. Gear; 423. Base plate; 43. Shock absorption mechanism; 44. Gear motor; 45. Protective cover; A. Lifting mechanism; 5. Telescopic component; 51. Telescopic rod; 52. Hydraulic cylinder; 6. Rotary component; 7. Pulley assembly; 71. Wheel seat; 72. Pulley; 73. Gear set; 74. Motor; 8. Chassis; 9. Control console; 91. Control host; 92. Display. Detailed Implementation

[0019] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail.

[0020] This application discloses an integrated anti-buoyancy anchor bolt seepage prevention device and a construction method for using it.

[0021] Reference Figure 1 and Figure 2 The anti-buoyancy anchor bolt integrated anti-seepage device includes a retaining sleeve 1 and an anchor cable assembly 2; The constriction sleeve 1 is placed in the borehole, extending along the depth of the borehole with an open top and a closed bottom. In this embodiment, the constriction sleeve 1 is used to wrap the anchor cable assembly 2, which can filter, drain, isolate and reinforce the concrete, effectively prevent grout loss during grouting, reduce construction costs, ensure grout strength, prevent cracking when the grout solidifies and the anchor cable is in operation, and improve the stability and reliability of the anchor cable.

[0022] Anchor cable assembly 2 is vertically inserted into the retaining sleeve 1, with its upper end extending out of the retaining sleeve 1. The anchor cable assembly 2 includes parallel steel strands 21, brackets 22, and grouting pipes 23. The steel strands 21 are divided into multiple groups of three, with each group consisting of three strands arranged in a ring. The brackets 22 can be ring-shaped structures, formed by reinforcing bars that surround the steel strands 21 and are connected to each group of steel strands 21 by binding or welding with wire to fix the steel strands 21. Each group of steel strands 21 has multiple brackets 22, for example, three brackets 22 distributed vertically, located at the front, middle, and rear sections of the steel strands 21 respectively. The grouting pipes 23 are located between the three groups of steel strands 21, vertically extending from the top of the receiving sleeve 1. The grouting pipes 23 are used to connect to the output port of the concrete conveying equipment to gradually feed concrete into the borehole. It is understood that there can be one or more grouting pipes 23, depending on the on-site grouting rate requirements and construction process.

[0023] This application also includes: The vibrating rod 3, with its vibrating head 31, is used to penetrate into the converging sleeve 1. The purpose of this setting is to use the high-frequency vibration of the vibrating rod 3 to expel air bubbles inside the concrete, reduce the porosity inside the concrete, ensure the overall uniformity of the concrete material, avoid local aggregate concentration, ensure uniform stress transmission when the structure is under stress, improve the strength of the concrete, and ensure the durability of the concrete structure. The ranging mechanism 4 is mounted on the flexible hose 32 that pulls the vibrating head 31 from the vibrating rod 3 and is close to the vibrating head 31; and, A lifting mechanism is provided outside the opening in the borehole to drive the vibrating rod 3 to rise and fall in the borehole, and at least one of its lifting parts is connected to the flexible hose 32 of the vibrating rod 3.

[0024] The vibrating rod 3 is located between the steel strands 21, and the measuring direction of the measuring mechanism 4 is to the side. The vibrating rod 3 used in this application can be a small-diameter vibrating rod 3, which can achieve precise operation in complex construction environments.

[0025] According to the above settings, the ranging mechanism 4 is used to determine whether the vibrating rod 3 is fully inserted into the concrete for vibration during operation, and to determine whether the vibrating rod 3 is placed vertically in the concrete. The lifting mechanism can control the lifting and lowering of the vibrating rod 3, and at the same time, cooperate with the ranging mechanism 4 to adjust the position of the vibrating rod 3 in the concrete. Through the effective cooperation between the ranging mechanism 4 and the lifting mechanism, the construction efficiency of the anti-buoyancy anchor bolt construction can be improved, and the construction quality of the anti-buoyancy anchor bolt can be improved.

[0026] refer to Figure 3 In one embodiment of this application, the ranging mechanism 4 includes a non-contact ranging component 41 and an annular track 42 for connection with the hose 32. The annular track 42 includes a toothed ring 421, a gear 422, and a base plate 423. The base plate 423 is annular and its inner side is connected to the hose 32 of the vibrating rod 3 via a shock-absorbing mechanism 43. Specifically, the shock-absorbing mechanism 43 disposed between the annular track 42 and the hose 32 includes a rubber sheet, an air cushion plate, or a double-layer plate with built-in springs. Example: The shock-absorbing mechanism 43 can adopt an annular structure, with two rubber sheets distributed vertically; or four double-layer plates with built-in springs arranged in a annular array. When the vibrating rod 3 is working, the shock-absorbing mechanism 43 can reduce the mechanical vibration of the vibrating rod 3 to reduce the damage to the ranging mechanism 4 and extend the service life of the ranging mechanism 4.

[0027] A gear ring 421 is fitted onto the flexible hose 32 of the vibrating head 31, separating the two. The gear ring 421 rests on the base plate 423 and is rotatably connected to the base plate 423. A gear 422 is rotatably connected to the base plate 423 via a rotating shaft (or rotatably connected to a bearing pre-embedded in the base plate 423). The gear 422 is located inside the gear ring 421 and meshes with the gear ring 421. A reduction motor 44 is fixedly connected to a structural sleeve outside the flexible hose 32 of the vibrating rod 3 via bolts or other structures. The structural sleeve is fixed to the base plate. The output shaft of the reduction motor 44 is coaxially fixed to the central shaft of the gear 422.

[0028] The non-contact ranging component 41 can be fixed to the gear ring 421 of the annular track 42 by bolts. When the gear motor 44 drives the gear 422 to rotate, it drives the gear 422 to rotate. The rotation of the gear 422 drives the gear ring 421 that meshes with it to rotate, thereby driving the non-contact ranging component 41 to rotate in the circumferential direction.

[0029] The reason for allowing the non-contact ranging component 41 to rotate is that when workers put the vibrating rod 3 into the borehole, they often do not put it in a fixed position. This will result in the non-contact ranging component 41 not detecting the required structure, such as the steel strand 21, which will affect the performance. Therefore, it is set to automatically rotate around the vibrating rod 3 to change its position, reducing the requirements when putting the vibrating rod 3 in.

[0030] It is understandable that the above-mentioned non-contact ranging component 41 is used to detect the steel strand 21 for the following reasons: First, the vibrating rod 3 is closer to each group of steel strands, and the detection power requirement is lower; second, the outer sleeve 1 is flexible, and the inner wall may not be flat, with wrinkles and other interference; third, it is to maintain a certain distance from the steel strand 21 to prevent contact and contact that could cause the steel strand 21 to vibrate significantly and move left, right, up, or down, thus affecting its fixation and structural strengthening effect after pouring.

[0031] In one embodiment of this application, the non-contact ranging component 41 includes a metal detector head and a microcontroller. The microcontroller may be a micro-controlled electronic device such as a single-chip microcomputer controller, which is integrated and installed in the housing structure where the metal detector head is located and electrically connected to the metal detector head.

[0032] The metal detector head includes a packaged housing structure and an integrated transmitter for generating an electromagnetic field and a receiver for receiving the magnetic field. It is understood that the principle of the metal detector is existing technology, so its receiver and transmitter structure will not be described in detail. Considering the very small detection distance, a miniature model or a customized micro model can be selected.

[0033] In another embodiment of this application, the non-contact ranging component 41 further includes a current transformer, a microcontroller connected to the current transformer, the current transformer being installed on the circuit of the receiver in the metal detector head for receiving the magnetic field, and the microcontroller being electrically connected to the geared motor 44.

[0034] When in use, the receiver of the metal detector captures the changes in the magnetic field of the metal object being tested in real time (the magnetic field strength is different when the metal is close to or far away), and converts the changes in the magnetic field into a current signal. The current amplitude in the receiver circuit changes with distance: the closer the distance, the greater the current. With a current transformer in place, the microcontroller receives the detection signal output by the current transformer and maps the "current value" to the "actual distance value" using built-in algorithms (such as threshold comparison and linear interpolation). It then compares the actual distance with the preset "target distance range". If the current distance is less than the target minimum value, it is determined to be "too close"; if the current distance is greater than the target minimum value, it is determined to be "too far". The microcontroller outputs a control signal based on the determination result to control the rotation of the non-contact distance measuring component 41 and detect the relative position of the vibrating rod 3, so that the staff can adjust the position of the vibrating rod 3 in the borehole to make its operation more reasonable.

[0035] Reference Figure 5 In one embodiment of this application, because the ranging mechanism 4 is mounted on the vibrating rod 3, which is inserted into the drill hole and concrete is poured into the hole, it is easily damaged by concrete if directly exposed. Therefore, a cylindrical protective cover 45 is provided outside the ranging mechanism 4. The protective cover 45 is hollow. (Refer to...) Figure 4 The protective cover 45 has a detection window that matches the detection part of the ranging mechanism 4. The protective cover 45 can be made of non-metallic material, such as ABS plastic, which has the characteristics of high strength and impact resistance, making it suitable as the main body of the outer shell of the ranging mechanism 4 and preventing the ranging mechanism 4 from being contaminated by concrete.

[0036] The metal detector can be powered by a battery. Since the transmitter of the metal detector operates on AC power, an inverter is needed on the output side of the battery to convert DC power to AC power. The microcontroller mentioned above also acts as a battery controller, integrating a battery management chip. The battery management chip is connected to the inverter and the battery to power the metal detector.

[0037] In one embodiment of this application, reference is made to Figure 4 This application also includes a console 9, which includes a control host 91 and a display 92 electrically connected to the control host 91.

[0038] The ranging mechanism 4 also includes a wireless communication unit electrically connected to the microcontroller, and the console 9 is data-connected to the wireless communication unit and the geared motor 44. The wireless communication unit can be a 3G / 4G communication unit or a mid-range radio frequency communication unit. The wireless communication unit can remotely transmit data detected by the non-detection ranging component to the console 9.

[0039] In this embodiment, a wireless communication unit is added to the controller of the concrete vibrator 3, and the controller is connected to the control console 9 through the wireless communication unit.

[0040] When in use: When the staff observes that the concrete is put into the borehole and the release length matches the grouting position, an initial trigger signal is sent to the non-contact ranging component 41 through the control console 9; Based on the above, the microcontroller is configured as follows: S1. If the current position is in the initial position correction stage of the non-contact ranging component 41, that is, the above-mentioned initial trigger signal is received, the reduction motor 44 is controlled to drive the non-contact ranging group to move one circle along the circular track 42, and the detection data set obtained from the metal detector head is acquired simultaneously.

[0041] It is understandable that the circumference of the circular track 42 and the speed of the reduction motor 44 are preset and fixed by the staff. Therefore, the control quantities required for the non-contact ranging group to move one circle along the circular track 42 can be predetermined by the staff and written into the microcontroller.

[0042] S2. By comparing and analyzing the set of detection data, we obtain several detection data points with the smallest interval, which are defined as target location data. Regarding comparative analysis, an example is provided: Assuming that the feedback signal is processed to obtain the magnetic field strength, the magnetic field strength obtained from each sampling is compared. The greater the magnetic field strength, the closer it is to the metal structure (i.e., the steel strand 21 mentioned above). Therefore, the set of data with the greatest strength is taken as the detection data with the smallest spacing.

[0043] S3. Read the target position data at the time of the data (i.e., the machine time bound to the chip when the data is fed back, or the timestamp of the data), and calculate the time t1 taken to rotate to the target position based on the start time of the rotation action, and control the reduction motor 44 based on the time t1.

[0044] The above calculation example: Assuming 10:00 is the starting time of the rotation, and the timestamp corresponding to the target position data is 10:01, then the time t1 is 1 minute; Based on this, the control parameters of the geared motor 44 are controlled, that is, the geared motor 44 is controlled to rotate continuously for 1 minute.

[0045] According to the above settings: the wireless communication unit can remotely transmit the detection data of the non-contact ranging component 41 to the control console 9. Workers do not need to be stationed near the construction area; they only need to operate the control console 9 from a safe area, ensuring personnel safety and mitigating construction risks. After receiving the initial trigger signal, the microcontroller controls the reduction motor 44 to drive the ranging component to move one revolution along the circular track 42, acquiring a complete set of detection data within the circular area, covering all possible locations of the steel strands 21 around the vibrator 3, achieving full-area data coverage. By comparing the data in the set (such as magnetic field strength; the greater the strength, the closer to the steel strand 21), the data with the "closest spacing" is selected. The "small" target location data can filter out single interference signals from other metals on site (such as rebar ends and tools), avoiding positioning deviations caused by local interference. The final positioning result is directly related to the actual position of the steel strand 21, providing "precise coordinate basis" for the subsequent position calibration of the vibrator 3, avoiding accidental contact with the steel strand 21 or missed vibration of key areas during vibration, and ensuring the integrity of the concrete structure. Through the automated closed-loop control of the microcontroller, there is no need for manual calculation of motor rotation parameters. Only one manual trigger is required throughout the process (to confirm the length of concrete placement and release). Subsequent distance measurement, analysis, and motor control are all completed automatically by the system, greatly reducing the impact of human operation on accuracy.

[0046] refer to Figure 1 and Figure 6 In another embodiment of this application, the lifting mechanism includes a telescopic component 5, a rotary component 6, a pulley component 7, and a chassis 8 for placing on the ground.

[0047] The chassis 8 is circular when viewed from above, and its bottom is fixed with multiple (e.g., four) support feet (e.g., ...). Figure 9As shown), it is used to support it on the ground on the side of the borehole; the rotating component 6 is a flat cylindrical shape and is installed on the upper surface of the chassis 8. The rotating component 6 is provided with a rotating part for rotating the telescopic component 5 and is hinged to one end of the telescopic component 5; the telescopic component 5 is inclined and the end away from the chassis 8 is fixedly connected to the pulley assembly 7 by bolts. The pulley assembly 7 is used to connect the hose 32 of the vibrator 3 and to raise and lower the vibrator 3.

[0048] For details, please refer to Figure 7 and Figure 8 The telescopic assembly 5 includes a telescopic rod 51 and a hydraulic cylinder 52. The telescopic rod 51 includes a fixed rod and a movable rod that is axially slidably connected to the fixed rod. One end of the fixed rod is hinged to the rotating part of the rotary assembly 6. The free end of the movable rod of the telescopic rod 51 is fixed to an extension rod and is fixedly connected to the pulley assembly 7 through the extension rod. The cylinder body of the hydraulic cylinder 52 is vertically mounted on the rotating part of the rotating assembly 6 and is hinged to the rotating assembly 6. The end of the piston rod of the hydraulic cylinder 52 is hinged to the extension rod of the movable rod of the telescopic rod 51.

[0049] In use, when the piston rod of the hydraulic cylinder 52 extends, it pushes the extension rod to drive the movable rod to extend from the fixed rod; when the piston rod retracts, it pulls the extension rod to drive the movable rod to retract; the pulley assembly 7 can be adjusted along the axis of the telescopic rod 51 to achieve near or far linear distance adjustment, and precisely control the working radius.

[0050] In addition to the effects mentioned above, the hydraulic cylinder 52 also supports the telescopic rod 51, improving its load-bearing capacity.

[0051] In one embodiment of this application, the rotary assembly 6 includes a turntable and a servo motor for driving the turntable to rotate. The central axis of the turntable is vertical and a rotating shaft is fixed coaxially. The rotating shaft is rotatably connected to the chassis 8. The chassis 8 has a built-in servo motor. The output shaft of the servo motor is directly connected to the rotating shaft or connected to the rotating shaft through a gear set 422 to drive the turntable to rotate.

[0052] When in use, when the rotating part of the slewing component 6 rotates around its own axis, it will synchronously drive the entire pulley component 7 and the telescopic component 5 to rotate together, which can achieve 360-degree rotation on the horizontal plane, breaking the limitation of "fixed direction" and covering a larger surrounding working area.

[0053] refer to Figure 7 and Figure 8The pulley assembly 7 includes a wheel seat 71, pulleys 72, a gear set 73, and a motor 74. The wheel seat 71 is installed on the telescopic end of the telescopic assembly 5. The pulleys 72 are rotatably connected to the wheel seat 71, and their axial direction is horizontal. The two pulleys 72 are arranged laterally and are used to clamp the hose 32 of the vibrating rod 3. The gear set 73 is located on the wheel seat 71, and its input and output ends are respectively connected to the two pulleys 72. The motor 74 is fixedly connected to the side of the wheel seat 71 away from the pulleys 72, and the output shaft of the motor 74 is coaxially fixed with the input end of the gear set 73. The pulley assembly 7 can control the lifting and lowering of the vibrating rod 3, meet the working requirements of the vibrating rod 3, and improve the working efficiency of the vibrating rod 3. In order to better clamp the hose 32 of the vibrating rod 3, the surface of the hose 32 can be a non-smooth surface, which helps to increase the friction between the pulley 72 and the hose 32, making the clamping more stable.

[0054] Specifically, gear set 73 has four gears arranged roughly in the same horizontal direction. The center distance between adjacent gears meets the meshing condition, forming a straight line distribution and creating a continuous transmission path. The four gears drive sequentially through tooth surface meshing, forming a series gear transmission chain. Power is transmitted from one side gear to the other side via the middle gear. The teeth of adjacent gears interlock, transmitting rotational motion and torque through tooth meshing. The first and last gears are coaxially connected to their respective pulleys 72, meaning the central axes of the gears and pulleys 72 coincide, and their angular velocities are exactly the same during rotation. Through the transmission connection of the four gears, the two pulleys 72 can rotate in opposite directions, thereby controlling the raising or lowering of the vibrating rod 3.

[0055] As described above, the lifting mechanism can work with the ranging mechanism 4 to adjust the position and angle of the vibrating rod 3. When the vibrating rod 3 is working, the reduction motor 44 controls the metal detector in the ranging mechanism 4 to move one revolution along the circular track 42, recording the initial position of the vibrating rod 3 and feeding the data back to the control console 9. The metal detector continues to move, and when the ranging mechanism 4 detects that the vibrating rod 3 is not in contact with the concrete, the control console 9 remotely controls the pulley assembly 7 to lower the height of the vibrating rod 3, so that the vibrating rod 3 is in the concrete for vibration. When the ranging mechanism 4 detects that the vibrating rod 3 is tilted while working in the concrete, it jointly controls the pulley assembly 7, the telescopic assembly 5, and the slewing assembly 6 in the lifting mechanism until the vibrating rod 3 is in a vertical position in the concrete, which can achieve effective and rapid vibration of the vibrating rod 3 and improve the vibration efficiency of the vibrating rod 3.

[0056] In another embodiment of this application, the material of the retaining sleeve 1 can be a composite geomaterial composed of a high tear-resistant polyester fiber reinforced mesh and a polyester staple fiber nonwoven fabric. The polyester fiber reinforced mesh has a reinforcing effect, and the polyester staple fiber nonwoven fabric has an isolation and drainage filtration effect, which can satisfy the retaining sleeve 1 to have the functions of drainage, filtration, reinforcement and isolation.

[0057] This embodiment also provides a construction method for using an integrated anti-buoyancy anchor bolt seepage prevention device, including the following steps: Step 1: Pre-construction preparations, which include: Drill a hole in the ground, vertically insert the retaining sleeve 1 into the hole, and insert the anchor cable assembly 2 into the retaining sleeve 1. Example: When drilling at the target location using a rotary drilling rig, the worker manually inserts the retaining sleeve 1 into the borehole with the closed end of the retaining sleeve 1 facing down. After the retaining sleeve 1 is inserted, its open end is opened, and then a crane is used to gradually insert the pre-assembled anchor cable assembly 2 from the opening of the retaining sleeve 1. Insert the vertically inserted grouting pipe 23 into the borehole, and install the vibrator 3 on the lifting mechanism. The lifting mechanism vertically inserts the vibrator 3 into the borehole. At this time, the lower part of the vibrator head 31 should be higher than the lower part of the grouting pipe 23; specifically: The hose 32 of the vibrating rod 3 is clamped between the two pulleys 72 of the pulley assembly 7, and the motor 74 is controlled to rotate so that the pulleys 72 in the pulley assembly 7 rotate to vertically insert the vibrating rod 3 into the depth of the borehole.

[0058] Step 2, concrete vibration and testing, includes: 1) The grouting pipe 23 is vertically inserted into the borehole to provide a dedicated path for concrete delivery and avoid uneven diffusion of concrete in the borehole; the lifting mechanism fixes the vibrator 3 to ensure that the vibrator 3 can move vertically and stably in the borehole, in preparation for subsequent vibration, that is, the vibrator 3 is used to vibrate the concrete injected by the grouting pipe 23.

[0059] 2) Feedback evaluation based on motor 74 to detect whether the vibrator 3 contacts the concrete after each drop; Example: Assuming that the speed of the motor 74 when it is set to the first speed is 10cm / s, the lowering distance h1 can be calculated using the speed formula; if the drilling depth is set to H, then the position of the vibrator 3 is H-h1. Assuming the grouting speed of grouting pipe 23 is 1L / s, and 1L can raise the concrete by 5cm, then first calculate the amount of concrete injected at grouting time t2, V=t2*1L / s, and then calculate the height of the concrete rise h2. If h2=H-h1, it means that the vibrator 3 has started to contact the concrete.

[0060] 3) Based on the feedback of the non-contact ranging component 41, evaluate whether the position of the vibrator 3 and the steel strand 21 is correct, and evaluate whether it is skewed after contacting the concrete. Process Example: When grouting pipe 23 begins injecting concrete or completes a section of concrete pouring, the vibrator 3 is controlled on control console 9; it should be noted that the position of the steel strand 21 of vibrator 3 must be checked before vibration; specifically: The geared motor 44 controls the non-contact ranging component 41 to move along the circular track 42. The non-contact ranging component 41 detects the distance between the vibrating rod 3 and the concrete of the steel strand 21. The detection principle has been explained above, so it will not be repeated here.

[0061] The detection data of the non-contact ranging component 41 is transmitted to the microcontroller, which then transmits the corresponding signal to the console 9. The console 9 then parses the data and displays the distance between the vibrator 3 and the concrete on the display 92.

[0062] Understandably, if the vibrator 3 is inserted to the correct length as in the previous step, and the position of the vibrator relative to the steel strand 21 meets the preset standard, then if the distance displayed on the monitor 92 is within the standard range, it means that the vibrator 3 is vertical; otherwise, it is considered that the vibrator 3 is skewed, causing the distance to become larger or smaller and exceed the range.

[0063] As the grouting work continues, the grouting pipe 23 will slowly rise. During this process, the motor 74 drives the pulley 72 to rotate, thereby driving the hose 32 to rise synchronously. The vibrator 3 will also rise slowly synchronously with the grouting pipe 23 until the grouting work in the borehole is completed.

[0064] Step 3, Vibrator 3 posture correction, which includes: adjusting the posture of vibrator 3 using the lifting mechanism according to the evaluation results of step 2, so that it is placed vertically in the concrete for vibration.

[0065] During the process, the vibrator 3 generates high-frequency vibration, which can expel air bubbles and eliminate voids in the concrete, making the concrete tightly fill the gap between the borehole and the anchor cable, and enhancing the bond between the concrete and the anchor cable and the borehole wall. This is the core guarantee that the anchor cable can transmit tension and play its anchoring role.

[0066] If the evaluation result of step two is that the vibrator 3 is "vibrating without contact" outside the concrete, a signal will be immediately sent to the control console 9 through the microcontroller. After the staff observes the display 92, they will make timely adjustments to avoid wasting vibration energy. If the assessment result indicates that the vibrator 3 is not vertical, the vibrator 3 can be slowly pulled up and lowered again using the lifting mechanism to restore it to a vertical state, ensuring that the vibration range covers the entire cross section of the borehole and preventing local concrete from becoming loose due to inadequate vibration.

[0067] The above construction method can achieve the following: dense concrete can avoid "weak points" (such as voids and honeycombs) in the anchorage section, prevent concrete cracking or anchor cable slippage under subsequent stress, and improve project safety; automated detection and posture adjustment replace manual judgment, reduce problems such as vibration position deviation and verticality exceeding the standard caused by insufficient operator experience, and improve construction accuracy; real-time alarm and dynamic adjustment can correct problems in time, avoid discovering that the vibration is not up to standard only after grouting is completed, and eliminate the need for breaking up and re-grouting, saving time and material costs.

[0068] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An integrated anti-buoyancy anchor bolt seepage prevention device, comprising an anchor cable assembly (2), characterized in that, Also includes: A drawstring (1) is used to be placed in a borehole, with its length extending along the depth of the borehole and its upper end open and its lower end closed. The vibrating rod (3) has a vibrating head (31) that is used to insert into the gathering sleeve (1); The ranging mechanism (4) is mounted on the hose (32) of the vibrating rod (3) that drags the vibrating head (31) and is close to the vibrating head (31); and, The lifting mechanism (A) is set outside the opening of the borehole and is used to drive the vibrating rod (3) to rise and fall in the borehole. At least one of its lifting parts is connected to the hose (32) of the vibrating rod (3). The anchor cable assembly (2) is inserted into the retaining sleeve (1). The anchor cable assembly (2) includes multiple parallel steel strands (21), brackets (22) and grouting pipes (23). The multiple steel strands (21) are divided into multiple groups and arranged in a circumferential manner. The grouting pipes (23) are located between the multiple groups of steel strands (21). The vibrating rod (3) is located between the steel strands (21). The distance measuring mechanism (4) measures the distance to the side.

2. The integrated anti-buoyancy anchor bolt seepage prevention device according to claim 1, characterized in that: The ranging mechanism (4) includes a non-contact ranging component (41) and an annular track (42) for connecting to the hose (32). The ranging mechanism (4) is movably connected to the annular track (42). A geared motor (44) for driving the non-contact ranging component (41) to rotate along the annular track (42) is installed on the annular track (42). A protective cover (45) is provided outside the ranging mechanism (4). The protective cover (45) has a detection window that matches the detection part of the ranging mechanism (4). A shock-absorbing mechanism (43) for reducing the impact of the vibration of the vibrating rod (3) on the ranging mechanism (4) is provided between the annular track (42) and the hose (32). The shock-absorbing mechanism (43) includes a rubber sheet, an air cushion plate, or a double-layer plate with a built-in spring.

3. The integrated anti-buoyancy anchor bolt seepage prevention device according to claim 2, characterized in that: The non-contact ranging assembly (41) includes a metal detector and a microcontroller. The microcontroller is electrically connected to the metal detector, or the microcontroller is connected to a current transformer, which is installed on the circuit of the receiver in the metal detector for receiving the magnetic field. The microcontroller is electrically connected to a geared motor (44) and is configured as follows: If the current position is in the initial position correction stage of the non-contact ranging component (41), the control geared motor (44) drives the non-contact ranging group to move one circle along the circular track (42), and simultaneously acquires the detection data set obtained from the metal detector head; By comparing and analyzing the detection data set, the detection data with the smallest interval are obtained and defined as the target location data. The time to read the target position data is calculated based on the start time of the rotation action, and the time t1 taken to rotate to the target position is calculated. The reduction motor (44) is controlled based on the time t1.

4. The integrated anti-buoyancy anchor bolt seepage prevention device according to claim 3, characterized in that: It also includes a console (9), which includes a control host (91) and a display (92) electrically connected to the control host (91); the ranging mechanism (4) also includes a wireless communication unit electrically connected to the non-detection ranging component, and the console (9) is data connected to the wireless communication unit and the geared motor (44).

5. The integrated anti-buoyancy anchor bolt seepage prevention device according to claim 4, characterized in that: The annular track (42) includes a toothed ring (421), a gear (422) and a base plate (423). The base plate (423) is annular and its inner side is connected to the hose (32) of the vibrating rod (3) through a shock-absorbing mechanism (43). The toothed ring (421) is rotatably sleeved on the hose (32) of the vibrating head (31). The gear (422) is rotatably connected to the base plate (423). The gear (422) is located inside the toothed ring (421) and meshes with the toothed ring (421). The gear (422) is coaxially fixed with the output shaft of the reduction motor (44). The reduction motor (44) is connected to the hose (32) of the vibrating rod (3) through the shock-absorbing mechanism (43).

6. The integrated anti-buoyancy anchor bolt seepage prevention device according to claim 1, characterized in that: The lifting mechanism (A) includes a telescopic component (5), a rotary component (6), a pulley component (7), and a chassis (8) for placing on the ground; the rotary component (6) is disposed on the upper surface of the chassis (8), and the rotary component (6) is provided with a rotary part for rotating the telescopic component (5) and connected to the telescopic component (5); the telescopic component (5) is inclined and its end away from the chassis (8) is connected to the pulley component (7), and the pulley component (7) is used to connect the vibrating rod (3) and to lift the vibrating rod (3).

7. The integrated anti-buoyancy anchor bolt seepage prevention device according to claim 6, characterized in that: The telescopic assembly (5) includes a telescopic rod (51) and a hydraulic cylinder (52). The telescopic rod (51) includes a fixed rod and a movable rod that is axially slidably connected to the fixed rod. One end of the fixed rod is rotatably connected to the upper surface of the rotary assembly (6). The free end of the movable rod of the telescopic rod (51) is fixedly connected to the pulley assembly (7). The cylinder body of the hydraulic cylinder (52) is vertically arranged in the rotary part of the rotary assembly (6) and fixedly connected to the rotary assembly (6). The end of the piston rod of the hydraulic cylinder (52) is rotatably connected to the fixed rod of the telescopic rod (51).

8. The integrated anti-buoyancy anchor bolt seepage prevention device according to claim 7, characterized in that: The pulley assembly (7) includes a wheel seat (71), a pulley (72), a gear set (73), and a motor (74). The wheel seat (71) is installed on the telescopic end of the telescopic assembly (5). The pulley (72) is rotatably connected to the wheel seat (71), and the axial direction of the pulley (72) is horizontal. The two pulleys (72) are arranged laterally and used to clamp the hose (32) of the vibrating rod (3). The gear set (73) is set on the wheel seat (71), and its input end and output end are respectively connected to the two pulleys (72). The motor (74) is fixedly connected to the side of the wheel seat (71) away from the pulley (72), and the output shaft of the motor (74) is coaxially fixed with the input end of the gear set (73).

9. A construction method for integrated anti-buoyancy anchor bolts to prevent leakage, characterized in that, include: Drilling holes in the foundation surface and applying the integrated anti-buoyancy anchor and seepage prevention device as described in any one of claims 1-8 to the drilling; wherein the construction includes the following steps: Step 1: Pre-construction preparations, which include: A retaining sleeve (1) is vertically inserted into the borehole, and an anchor cable assembly (2) and a grouting pipe (23) are vertically inserted into the retaining sleeve (1). The hose of the vibrating rod (3) is clamped between the two pulleys (72) of the pulley assembly (7), and the pulleys (72) are rotated by the motor (74) to vertically insert the vibrating rod (3) into the depth of the borehole. Step 2, concrete vibration and testing, includes: Grouting is performed, and the concrete injected through the grouting pipe (23) is vibrated using a vibrator (3); Based on feedback from the motor (74), the vibrator (3) is evaluated to determine whether it contacts the concrete after each drop. The feedback evaluation based on the non-contact ranging component (41) is used to assess whether the position of the vibrator (3) and the steel strand (21) is correct, and to assess whether it is skewed after contacting the concrete. Step 3, Vibrator (3) posture correction, which includes: Based on the evaluation results of step two, the posture of the vibrator (3) is adjusted using the lifting mechanism so that it is placed vertically in the concrete for vibration.

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