Water conservancy pile foundation shearing resistance detection device and use method

Abstract

The invention relates to a water conservancy pile foundation shearing resistance detection device, in particular to a water conservancy pile foundation shearing resistance detection device and a use method, and belongs to the technical field of pile foundation static load test device.The water conservancy pile foundation shearing resistance detection device comprises a pile foundation body, a fan-shaped fixing plate is arranged outside the pile foundation body in a surrounding mode, and an end lever assembly is arranged on the lower surface of one end of a balance weight containing plate; load-bearing supporting assemblies are symmetrically arranged on the lower surface of the middle of the balance weight placing plate, a clamping variable force assembly is arranged on the outer surface of the pile foundation body, an inner ring double-convex groove is formed in the upper surface of the fan-shaped fixing plate, a monitoring arc-shaped plate is slidably clamped in the inner ring double-convex groove, and a monitoring plate is arranged on the upper surface of the monitoring arc-shaped plate. According to the device, shear resistance detection in different directions can be carried out on the pile foundation body, the pile foundation body can be horizontally and transversely pulled through the clamping variable force assembly and the laser range finder, the counterweight placing plate is pushed, and shear resistance detection in different directions can be carried out on the pile foundation body.

Description

Technical Field

[0001] The present invention relates to a detection device for the shear resistance performance of hydraulic pile foundations, specifically a detection device and a use method for the shear resistance performance of hydraulic pile foundations, belonging to the technical field of pile foundation static load test devices. Background Art

[0002] The pile foundation static load test is a technology used in engineering to detect the bearing capacity of pile foundations. In determining the ultimate bearing capacity of a single pile, it is currently the most accurate and reliable test method. As a basis for determining whether a certain dynamic load test method is mature, it depends on the comparison error size of the static load test results. Therefore, each foundation design and treatment specification includes the single-pile static load test in the primary position.

[0003] There is a existing static load test device for pile foundation detection (Publication No.: CN117627074A), including a mounting base, a rotating base, a driving mechanism, a first loading component, a second loading component, and a fixing component; the rotating base is rotatably mounted on the mounting base; the driving mechanism is arranged on the mounting base, and the driving mechanism is connected to the rotating base for driving the rotating base to rotate; the first loading component is arranged at the middle position of the bottom of the rotating base, and the first loading component is used to abut against the top of the pile foundation and apply a vertically downward load to the pile foundation; the second loading component is arranged beside the bottom of the rotating base, so that when the rotating base rotates, the second loading component is used to abut against the side wall of the pile foundation and apply a horizontally directed load to the pile foundation; the fixing component is arranged on the mounting base. Through the combined use of the first loading component and the second loading component, the accuracy and comprehensiveness of the test data are improved in the present invention.

[0004] When the above existing device is in use, although it can detect the lateral shear resistance of the pile foundation, when the building is subjected to lateral thrusts from different wind directions within 360 degrees, the above existing device is not convenient for detecting the shear resistance of the pile foundation in different orientations.

[0005] In view of this, the present invention is specifically proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a detection device and a use method for the shear resistance performance of hydraulic pile foundations to solve the above problems, having the ability to detect the shear resistance of the pile foundation body in different orientations.

[0007] The present invention realizes the above object through the following technical solutions. A device for detecting the shear performance of a hydraulic pile foundation and its use method include a pile foundation body. A sector-shaped fixing plate is arranged around the outer part of the pile foundation body, and the sector-shaped fixing plates are tightly inserted into each other. Insertion and fixing components are fixedly installed at both ends of the circumferential outer wall of the sector-shaped fixing plate. A counterweight placement plate is arranged on the upper surface of the sector-shaped fixing plate on one side of the outer part of the pile foundation body. An end lever assembly is arranged on the lower surface of one end of the counterweight placement plate. The end lever assembly includes a middle ring arc-shaped frame. A middle ring double convex groove is opened on the upper surface of the sector-shaped fixing plate, and the middle ring arc-shaped frame is slidably clamped in the middle ring double convex groove. Load-bearing support components are symmetrically arranged on the lower surface of the middle part of the counterweight placement plate. The load-bearing support components include an outer ring arc-shaped frame. An outer ring sliding groove is opened on the upper surface of the sector-shaped fixing plate, and the outer ring arc-shaped frame is slidably arranged in the outer ring sliding groove. A clamping variable force assembly is arranged on the outer surface of the pile foundation body. The clamping variable force assembly includes a variable force rope. One end of the variable force rope is fixedly connected to the counterweight placement plate through a mounting plate. An inner ring double convex groove is opened on the upper surface of the sector-shaped fixing plate, and a monitoring arc-shaped plate is slidably clamped in the inner ring double convex groove. A monitoring plate is fixedly installed on the upper surface of the monitoring arc-shaped plate through a monitoring rod. A laser rangefinder is inlaid on one side of the monitoring plate. Linkage rods are rotatably installed on both outer walls of the monitoring plate. One end of the linkage rod is slidably clamped with one end of the sector-shaped fixing plate.

[0008] Further, in order to quickly splice the sector-shaped fixing plates, a sliding T-shaped groove is opened on one side wall of the sector-shaped fixing plate, and a sliding T-shaped block is fixedly installed on the other side wall of the sector-shaped fixing plate. The sector-shaped fixing plates evenly arranged outside the pile foundation body are tightly inserted into each other through the sliding clamping of the sliding T-shaped block and the sliding T-shaped groove.

[0009] Further, in order to increase the connection strength between the insertion and fixing component and the ground through the cooperation of the insertion tapered rod, the insertion spring and the fixed insertion rod, the insertion and fixing component includes a welding plate. The welding plates are evenly and fixedly welded at both ends of the side wall of the sector-shaped fixing plate. An insertion cylinder is fixedly installed inside the welding plate. An insertion tapered rod is inserted inside the insertion cylinder. A rotating rod with a threaded outer wall is fixedly installed at the upper end of the insertion tapered rod. A threaded hole is opened at the upper end inside the insertion cylinder, and the rotating rod is rotationally engaged with the threaded hole. Spring holes are symmetrically and linearly opened on the circumferential outer surface of the insertion cylinder. Insertion springs are fixedly installed in the spring holes. Fixed insertion rods are inserted into the spring holes. One end of the fixed insertion rod is attached to the outer surface of the insertion tapered rod of the insertion cylinder.

[0010] Further, in order to reduce the friction between the middle circle arc-shaped frame and the middle circle double convex groove, middle circle ball bearings are evenly and rotatably clamped inside the middle circle arc-shaped frame of the end lever assembly. Middle circle bearings are fixedly installed on both the inner circle and the outer wall of the outer circle of the middle circle arc-shaped frame, and the middle circle bearings are in rolling contact with the inner wall of the middle circle double convex groove.

[0011] Further, in order to provide lever support for the end of the counterweight placement plate, end cylinders are symmetrically and fixedly installed on the upper surface of the middle circle arc-shaped frame. Lever frames are sleeved on the upper ends of the symmetrically arranged end cylinders. An arc-shaped groove is formed on the lower surface of one end of the counterweight placement plate, and the lever frame is in rotational contact with the surface of the arc-shaped groove.

[0012] Further, in order to support the middle position of the counterweight placement plate through the support cylinder, outer circle ball bearings are evenly and rotatably clamped inside the lower surface of the outer circle arc-shaped frame. Support cylinders are fixedly installed at both ends of the upper surface of the outer circle arc-shaped frame. Support circular sleeves are sleeved on the upper ends of the support cylinders. Semi-circular support grooves are symmetrically formed on the lower surface of one end of the counterweight placement plate, and the support circular sleeves are in sliding contact with the semi-circular support grooves.

[0013] Further, in order to increase the length of the counterweight placement plate, an adjustment groove is formed at one end of the counterweight placement plate. An L-shaped baffle is inserted into the adjustment groove. Fixing threaded holes are symmetrically and linearly formed in the counterweight placement plate and penetrate through the L-shaped baffle. Tightening screw rods are symmetrically and fixedly installed on the upper surface of the counterweight placement plate, and the tightening screw rods are rotationally engaged with the fixing threaded holes.

[0014] Further, in order to reduce the friction between the monitoring arc-shaped plate and the inner circle double convex groove, monitoring bearings are fixedly installed on both side surfaces of the monitoring arc-shaped plate, and the monitoring bearings are in rolling contact with the inner wall of the inner circle double convex groove. The linkage rod is an elastic rod. Linkage grooves are formed on the outer walls of both sides of one end of the counterweight placement plate. A clamping rod is fixedly installed at one end of the linkage rod, and the clamping rod is in sliding contact with the linkage groove.

[0015] Further, in order to connect with one end of the variable-force rope and the weight placement plate, and limit the variable-force rope through the semi-circular arc rod, so that the applied force at one end of the weight placement plate becomes a horizontal cross-cutting force on the pile foundation body, the clamping variable-force assembly further includes symmetrically arranged arc-shaped fixing plates. Both ends of the arc-shaped fixing plates are fixedly connected to each other through stabilizing bolts. Semi-circular arc rods are fixedly installed on the outer surfaces of the symmetrically arranged arc-shaped fixing plates through support rods. Plug-in blocks are fixedly installed at both ends of one semi-circular arc rod, and plug-in slots are formed at both ends of the other semi-circular arc rod. The plug-in blocks and the plug-in slots are tightly plugged into each other. The variable-force ropes are symmetrically and fixedly installed on the outer surface of one arc-shaped fixing plate. The variable-force ropes are in mutual contact with the semi-circular arc rods. Both ends of the mounting plate are fixedly connected to the surface of one end of the weight placement plate through mounting screws.

[0016] A usage method of a water conservancy pile foundation shear performance detection device based on the above, the usage method includes the following steps: S1: Select a suitable position to install the sector-shaped fixing plate. The staff splices the sector-shaped fixing plates, and then places the pile foundation body at the center of the sector-shaped fixing plates spliced into a circle. At this time, the ground is plugged through the ground plugging and fixing assembly.

[0017] S2: Install the weight placement plate. When splicing the sector-shaped fixing plates, the staff clamps the pile foundation body with the clamping variable-force assembly, and then fixedly connects the variable-force rope in the clamping variable-force assembly with one end of the weight placement plate. At this time, one end of the variable-force rope is in a horizontal state under the action of the semi-circular arc rod. At the same time, the staff inserts the middle circular arc frame in the end lever assembly into the middle circular double convex groove, and at the same time inserts the outer circular arc frame in the load-bearing support assembly into the outer circular sliding groove. At this time, the staff moves the weight placement plate to connect with the lever frame in the end lever assembly, supports the weight placement plate through the support cylinder in the load-bearing support assembly, and then inserts the monitoring arc plate into the inner circular double convex groove. At this time, the linkage rod is connected to the weight placement plate through the clamping rod, so as to realize that the laser rangefinder and the weight placement plate are linearly arranged.

[0018] S3: Load the weight blocks. When the staff installs the device, the staff uses appropriate tools to place the weight blocks on the surface of the weight placement plate. The length of the weight placement plate can be adjusted by pulling the L-shaped baffle and using the fastening screw, so as to increase the number of weight blocks placed.

[0019] S4: Measure the shear performance of the pile basic body under tensile forces in different directions. After placing counterweight blocks on the surface of the counterweight placement plate, the clamping variable-force component can generate a lateral shear force on the pile basic body. By closing the support cylinder in the load-bearing support component, the counterweight blocks on the counterweight placement plate can horizontally pull the pile basic body. At this time, the displacement of the pile basic body can be measured by a laser rangefinder. When the staff uses tools to push the counterweight placement plate to rotate on the surface of the sector-shaped fixed plates that are circularly spliced, the laser rangefinder can measure the displacement of the pile basic body at different positions under the same tensile force, thereby detecting the shear resistance of the pile basic body in different directions.

[0020] S5: Disassemble the device after the detection is completed. After the detection is completed, the staff first removes the counterweight blocks from the counterweight placement plate, and then disconnects the connection between the ground and the ground-inserting fixing component. At this time, disassemble the sector-shaped fixed plates, and then disassemble the end lever component, the load-bearing support component, the laser rangefinder, and the clamping variable-force component.

[0021] Technical effects and advantages of the present invention: 1. This device is convenient for the staff to quickly disassemble and install. Through the mutually spliced sector-shaped fixed plates and the end lever component, the load-bearing support component, and the clamping variable-force component that can be quickly installed, the installation efficiency of the device can be greatly improved. At the same time, the ground-inserting fixing component can increase the connection strength between the device and the ground and maintain the stability of the device.

[0022] 2. This device can detect the shear resistance of the pile basic body in different directions. Through the end lever component, the load-bearing support component, the clamping variable-force component, and the laser rangefinder, the pile basic body can be horizontally pulled, and thus the shear resistance of the pile basic body can be detected. At the same time, by pushing the counterweight placement plate, the horizontal pulling direction of the pile basic body can be adjusted, which is convenient for detecting the shear resistance of the pile basic body in different directions. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the position of the middle-circle double convex grooves of the present invention; Figure 3 It is a schematic diagram of the position of the detection plate of the present invention; Figure 4 It is a schematic diagram of the position of the outer-ring ball bearings of the present invention; Figure 5 It is a schematic diagram of the position of the outer-ring arc-shaped frame of the present invention; Figure 6 It is a schematic diagram of the position of the laser rangefinder of the present invention; Figure 7 It is a schematic diagram of the position of the support circular sleeve of the present invention; Figure 8Schematic structural diagram of the clamping variable force component of the present invention; Figure 9 Schematic structural diagram of the ground-inserting fixing component of the present invention; In the figure: 1, pile body; 2, sector fixing plate; 3, ground-inserting fixing component; 301, welding plate; 302, ground-inserting cylinder; 303, ground-inserting tapered rod; 304, rotating rod; 305, ground-inserting spring; 306, fixed ground-inserting rod; 4, counterweight placing plate; 5, end lever component; 501, middle ring arc frame; 502, middle ring ball; 503, middle ring bearing; 504, end cylinder; 505, lever frame; 6, middle ring double convex groove; 7, load-bearing support component; 701, outer ring arc frame; 702, outer ring ball; 703, support cylinder; 704, support circular sleeve; 8, outer ring sliding groove; 9, clamping variable force component; 901, variable force rope; 902, mounting plate; 903, arc fixing plate; 904, stabilizing bolt; 905, support rod; 906, semi-circular arc rod; 907, plug-in block; 908, plug-in slot; 909, mounting screw; 10, inner ring double convex groove; 11, monitoring arc plate; 12, monitoring rod; 13, monitoring plate; 14, laser rangefinder; 15, linkage rod; 16, sliding T-shaped groove; 17, sliding T-shaped block; 18, L-shaped baffle; 19, fixed threaded hole; 20, fastening screw; 21, monitoring bearing; 22, linkage groove; 23, clamping rod. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-9As shown, a device for detecting the shear resistance performance of a hydraulic pile foundation and its usage method include a pile foundation body 1. A sector-shaped fixing plate 2 is arranged around the outside of the pile foundation body 1, and the sector-shaped fixing plates 2 are tightly inserted into each other. Insertion and fixing components 3 are fixedly installed at both ends of the circumferential outer wall of the sector-shaped fixing plate 2. A counterweight placement plate 4 is arranged on the upper surface of the sector-shaped fixing plate 2 on one side outside the pile foundation body 1. An end lever assembly 5 is arranged on the lower surface of one end of the counterweight placement plate 4. The end lever assembly 5 includes a middle ring arc-shaped frame 501. A middle ring double convex groove 6 is formed on the upper surface of the sector-shaped fixing plate 2, and the middle ring arc-shaped frame 501 is slidably clamped in the middle ring double convex groove 6. Load-bearing support components 7 are symmetrically arranged on the lower surface of the middle part of the counterweight placement plate 4. The load-bearing support components 7 include an outer ring arc-shaped frame 701. An outer ring sliding groove 8 is formed on the upper surface of the sector-shaped fixing plate 2, and the outer ring arc-shaped frame 701 is slidably arranged in the outer ring sliding groove 8. A clamping variable force component 9 is arranged on the outer surface of the pile foundation body 1. The clamping variable force component 9 includes a variable force rope 901. One end of the variable force rope 901 is fixedly connected to the counterweight placement plate 4 through a mounting plate 902. An inner ring double convex groove 10 is formed on the upper surface of the sector-shaped fixing plate 2, and a monitoring arc-shaped plate 11 is slidably clamped in the inner ring double convex groove 10. A monitoring plate 13 is fixedly installed on the upper surface of the monitoring arc-shaped plate 11 through a monitoring rod 12. A laser rangefinder 14 is inlaid on one side of the monitoring plate 13. Linkage rods 15 are rotatably installed on both outer walls of the monitoring plate 13. One end of the linkage rod 15 is slidably clamped with one end of the sector-shaped fixing plate 2, so as to facilitate the staff to transport the device to a suitable position. Then, the staff splices the sector-shaped fixing plates 2 and then sleeved them outside the pile foundation body 1. At this time, the pile foundation body 1 needs to be located in the middle of the sector-shaped fixing plate 2. Then, the staff inserts the ground insertion cylinder 302 into the ground, and then the staff rotates the rotating rod 304, so that the rotating rod 304 drives the ground insertion tapered rod 303 to rotate, and further enables the fixed ground insertion rod 306 to be horizontally inserted into the ground. Before the sector-shaped fixing plates 2 are spliced into a circle, the staff needs to insert the end lever assembly 5, the load-bearing support components 7, and the monitoring arc-shaped plate 11 under the monitoring plate 13 with the laser rangefinder 14 into the sector-shaped fixing plate 2, and then support the counterweight support plate. Then, the staff clamps the pile foundation body 1 with the clamping variable force component 9 and then connects it to the counterweight placement plate 4 through the variable force rope 901, so as to facilitate the staff to place the counterweight on the upper surface of the counterweight placement plate 4, and then the shear resistance of the pile foundation body 1 can be detected.

[0026] As Figure 2 and Figure 9As shown, a sliding T-shaped groove 16 is provided on one side wall of the sector fixing plate 2, and a sliding T-shaped block 17 is fixedly installed on the other side wall of the sector fixing plate 2. The sector fixing plates 2 uniformly arranged outside the pile body 1 are tightly inserted with each other through the sliding connection of the sliding T-shaped block 17 and the sliding T-shaped groove 16. The ground insertion fixing component 3 includes a welding plate 301, and the welding plates 301 are uniformly and fixedly welded at both ends of the side wall of the sector fixing plate 2. An insertion cylinder 302 is fixedly installed inside the welding plate 301. An insertion tapered rod 303 is inserted inside the insertion cylinder 302. A rotating rod 304 with a threaded outer wall is fixedly installed at the upper end of the insertion tapered rod 303. A threaded hole is provided at the upper end inside the insertion cylinder 302, and the rotating rod 304 and the threaded hole are rotationally engaged with each other. Spring holes are symmetrically and linearly provided on the circumferential outer surface of the insertion cylinder 302. An insertion spring 305 is fixedly installed inside the spring holes. A fixed insertion rod 306 is inserted inside the spring holes. One end of the fixed insertion rod 306 is in contact with the outer surface of the insertion tapered rod 303 of the insertion cylinder 302, so that the staff can perform sliding connection through the sliding T-shaped block 17 and the sliding T-shaped groove 16. At the same time, the ground can be strongly connected through the insertion cylinder 302, the insertion tapered rod 303 and the fixed insertion rod 306. At the same time, the sector fixing plate 2 is made of high-strength steel.

[0027] As Figure 3 and Figure 5As shown, medium-ring ball bearings 502 are evenly arranged in the medium-ring arc frame 501 of the end lever assembly 5 in a rolling and clamping manner. Medium-ring bearings 503 are fixedly installed on both the inner ring of the medium-ring arc frame 501 and the outer wall of the outer ring. The medium-ring bearings 503 are in rolling contact with the inner wall of the medium-ring double convex groove 6. End cylinders 504 are symmetrically and fixedly installed on the upper surface of the medium-ring arc frame 501. Lever frames 505 are sleeved on the upper ends of the symmetrically arranged end cylinders 504. An arc groove is formed on the lower surface of one end of the counterweight placement plate 4. The lever frames 505 are in rotational contact with the surface of the arc groove. Outer-ring ball bearings 702 are evenly arranged in the lower surface of the outer-ring arc frame 701 in a rolling and clamping manner. Support cylinders 703 are fixedly installed at both ends of the upper surface of the outer-ring arc frame 701. Support circular sleeves 704 are sleeved on the upper ends of the support cylinders 703. Semi-circular support grooves are symmetrically formed on the lower surface of one end of the counterweight placement plate 4. The support circular sleeves 704 are in sliding contact with the semi-circular support grooves. An adjustment groove is formed at one end of the counterweight placement plate 4. An L-shaped baffle 18 is inserted into the adjustment groove. Fixed threaded holes 19 are symmetrically and linearly formed in the counterweight placement plate 4 and penetrate through the L-shaped baffle 18. Tightening screws 20 are symmetrically and fixedly installed on the upper surface of the counterweight placement plate 4. The tightening screws 20 are rotationally engaged with the fixed threaded holes 19. Before the fan-shaped fixing plate 2 is assembled, the medium-ring arc frame 501 at the lower end of the end lever assembly 5 can be inserted into the medium-ring double convex groove 6, so that the end lever assembly 5 can be installed. Then, the staff connects one end of the counterweight placement plate 4 to the lever frame 505 in the end lever assembly 5 and inserts the outer-ring arc frame 701 in the load-bearing support assembly 7 into the outer-ring sliding groove 8 at the same time, so that the support cylinder 703 can be supported. At the same time, the counterweight placement plate 4 is supported by the support circular sleeve 704 at the upper end of the support cylinder 703. At the same time, the pile body 1 can be clamped by the clamping variable-force assembly 9. The arc-shaped fixing plate 903 is connected by the stabilizing bolt 904. Then, the variable-force rope 901 is limited by the semi-circular arc rod 906. Then, the variable-force rope 901 is fixedly connected to one end of the counterweight placement plate 4, so that the pile body 1 can be horizontally pulled by the lever principle.

[0028] As Figure 8As shown in the figure, monitoring bearings 21 are fixedly installed on both side surfaces of the monitoring arc plate 11. The monitoring bearings 21 are in rolling contact with the inner wall of the inner ring double convex groove 10. The linkage rod 15 is an elastic rod. Linkage grooves 22 are formed on the outer walls on both sides of one end of the counterweight placement plate 4. A clamping rod 23 is fixedly installed at one end of the linkage rod 15. The clamping rod 23 is in sliding contact with the linkage groove 22. The clamping variable force assembly 9 further includes symmetrically arranged arc-shaped fixing plates 903. Both ends of the arc-shaped fixing plates 903 are fixedly connected to each other through stabilizing bolts 904. Semi-circular arc-shaped rods 906 are fixedly installed on the outer surfaces of the symmetrically arranged arc-shaped fixing plates 903 through support rods 905. Plug-in blocks 907 are fixedly installed at both ends of one side of the semi-circular arc-shaped rod 906. Plug-in slots 908 are formed at both ends of the semi-circular arc-shaped rod 906 on the other side. The plug-in blocks 907 are tightly plugged into the plug-in slots 908. Variable force ropes 901 are symmetrically and fixedly installed on the outer surface of one side of the arc-shaped fixing plate 903. The variable force ropes 901 are in contact with the semi-circular arc-shaped rods 906. Both ends of the mounting plate 902 are fixedly connected to the surface of one end of the counterweight placement plate 4 through mounting screws 909. By inserting the monitoring arc plate 11 into the inner ring double convex groove 10, the friction with the inner ring double convex groove 10 can be reduced through the monitoring bearings 21. At the same time, the monitoring plate 13 is supported by the monitoring rod 12. The laser rangefinder 14 on the monitoring plate 13 can measure the distance to the center line position of the pile foundation body 1. And the pile foundation body 1 can be clamped through the arranged clamping variable force assembly 9. The variable force ropes 901 are fixedly connected to the counterweight placement plate 4. Then the lever principle can be used to horizontally pull the pile foundation body 1. The staff can push the counterweight placement plate 4 to rotate by means of tools. At this time, the arc-shaped fixing plates 903 in the clamping variable force assembly 9 start to rotate. At the same time, the elastic linkage rod 15 is clamped to one end of the counterweight placement plate 4 through the clamping rod 23. Then it can be improved that the counterweight placement plate 4 drives the monitoring plate 13 to rotate synchronously. Then the ranging direction of the laser rangefinder 14 can be collinear with the center line direction of one end of the counterweight placement plate 4. Then the laser rangefinder 14 and the counterweight placement plate 4 can rotate synchronously. Then the shear resistance detection of the pile foundation body 1 in different directions can be realized.

[0029] A method for using a shear resistance performance detection device for a water conservancy pile foundation, the method for using comprising the following steps: S1: Select a suitable position to install the sector fixing plate 2. The staff splices the sector fixing plate 2, and then places the pile foundation body 1 at the center position of the sector fixing plates 2 spliced into a circle. At this time, the ground is inserted through the ground insertion fixing assembly 3.

[0030] S2: Install the counterweight placement plate 4. When splicing the sector fixed plate 2, the staff uses the clamping variable force assembly 9 to clamp the pile basic body 1, and then fixedly connects one end of the variable force rope 901 in the clamping variable force assembly 9 to one end of the counterweight placement plate 4. At this time, one end of the variable force rope 901 is in a horizontal state under the action of the semi-circular arc rod 906. At the same time, the staff inserts the middle circle arc frame 501 in the end lever assembly 5 into the middle circle double convex groove 6, and at the same time inserts the outer circle arc frame 701 in the load-bearing support assembly 7 into the outer circle sliding groove 8. At this time, the staff moves the counterweight placement plate 4 to connect with the lever frame 505 in the end lever assembly 5, supports the counterweight placement plate 4 through the support cylinder 703 in the load-bearing support assembly 7, and then inserts the monitoring arc plate 11 into the inner circle double convex groove 10. At this time, connect the linkage rod 15 to the counterweight placement plate 4 through the clamping rod 23, so that the laser rangefinder 14 and the counterweight placement plate 4 can be linearly arranged.

[0031] S3: Load the counterweights. After the staff installs the device, the staff uses appropriate tools to place the counterweights on the surface of the counterweight placement plate 4. By pulling the L-shaped baffle 18 and using the fastening screw 20, the length of the counterweight placement plate 4 can be adjusted, thereby increasing the number of counterweights placed.

[0032] S4: Detect the shear resistance of the pile basic body 1 under the action of tensile forces in different directions. After the counterweights are placed on the surface of the counterweight placement plate 4, the clamping variable force assembly 9 can generate a transverse shear force on the pile basic body 1. By closing the support cylinder 703 in the load-bearing support assembly 7, the counterweights on the counterweight placement plate 4 can horizontally pull the pile basic body 1. At this time, the displacement of the pile basic body 1 can be measured by the laser rangefinder 14. After the staff uses tools to push the counterweight placement plate 4 to rotate on the surface of the circularly spliced sector fixed plate 2, the laser rangefinder 14 can measure the displacement of the pile basic body 1 at different positions under the same tensile force, so as to detect the shear resistance of the pile basic body 1 in different directions.

[0033] S5: Complete the detection and disassemble the device. After the detection is completed, the staff first removes the counterweights from the counterweight placement plate 4, and then disconnects the connection between the ground insertion fixing assembly 3 and the ground. At this time, disassemble the sector fixed plate 2, and then disassemble the end lever assembly 5, the load-bearing support assembly 7, the laser rangefinder 14 and the clamping variable force assembly 9.

[0034] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0035] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in the various embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for testing the shear resistance of a hydraulic pile foundation, comprising a pile base body (1), wherein a fan-shaped fixing plate (2) is arranged around the outside of the pile base body (1), characterized in that: The fan-shaped fixing plates (2) are tightly plugged into each other, and both ends of the circumferential outer wall of the fan-shaped fixing plate (2) are fixedly installed with a ground-inserting fixing component (3). A counterweight placement plate (4) is arranged on the upper surface of the fan-shaped fixing plate (2) on the outer side of the pile basic body (1), and an end lever component (5) is arranged on the lower surface of one end of the counterweight placement plate (4). The end lever component (5) includes a middle circle arc frame (501), and a middle circle double convex groove (6) is opened on the upper surface of the fan-shaped fixing plate (2). The middle circle arc frame (501) is slidably engaged and arranged in the middle circle double convex groove (6). A load-bearing support component (7) is symmetrically arranged on the lower surface of the middle part of the counterweight placement plate (4). The load-bearing support component (7) includes an outer circle arc frame (701), and an outer circle sliding groove (8) is opened on the upper surface of the fan-shaped fixing plate (2). (701) is slidably arranged in the outer ring sliding groove (8), and a clamping variable force component (9) is arranged on the outer surface of the pile basic body (1), and the clamping variable force component (9) includes a variable force rope (901), and one end of the variable force rope (901) is fixedly connected to the counterweight placement plate (4) through a mounting plate (902). The upper surface of the fan-shaped fixed plate (2) is provided with an inner ring double convex groove (10), and a monitoring arc plate (11) is slidably arranged in the inner ring double convex groove (10). A monitoring plate (13) is fixedly installed on the upper surface of the monitoring arc plate (11) through a monitoring rod (12), and a laser rangefinder (14) is embedded and installed on one side of the monitoring plate (13). Linkage rods (15) are rotatably installed on the outer walls of both sides of the monitoring plate (13), and one end of the linkage rod (15) is slidably engaged with one end of the fan-shaped fixed plate (2).

2. A hydraulic pile foundation shear resistance detection device according to claim 1, characterized in that: A sliding T-shaped groove (16) is provided on one side wall of the fan-shaped fixing plate (2), and a sliding T-shaped block (17) is fixedly installed on the other side wall of the fan-shaped fixing plate (2). The fan-shaped fixing plates (2) uniformly arranged outside the pile basic body (1) are tightly plugged into each other through the sliding engagement between the sliding T-shaped blocks (17) and the sliding T-shaped grooves (16).

3. A hydraulic pile foundation shear resistance detection device according to claim 1, characterized in that: The ground insertion fixing assembly (3) comprises a welding plate (301), wherein the welding plate (301) is uniformly fixedly welded to the two ends of the side wall of the fan-shaped fixing plate (2), a ground insertion tube (302) is fixedly installed in the welding plate (301), a ground insertion conical rod (303) is inserted into the inside of the ground insertion tube (302), a rotating rod (304) with a threaded outer wall is fixedly installed on the upper end of the ground insertion conical rod (303), a threaded hole is provided at the inner upper end of the ground insertion tube (302), the rotating rod (304) and the threaded hole are rotatably engaged with each other, a spring hole is symmetrically and linearly provided on the circumferential outer surface of the ground insertion tube (302), a ground insertion spring (305) is fixedly installed in the spring hole, a fixed ground insertion rod (306) is inserted into the spring hole, and one end of the fixed ground insertion rod (306) is in contact with the outer surface of the ground insertion conical rod (303) of the ground insertion tube (302).

4. A hydraulic pile foundation shear resistance detection device according to claim 1, characterized in that: A middle circle ball (502) is uniformly rolled and clamped in the middle circle arc frame (501) of the end lever assembly (5), and a middle circle bearing (503) is fixedly installed on the inner circle and the outer wall of the outer circle of the middle circle arc frame (501), and the middle circle bearing (503) and the inner wall of the middle circle double convex groove (6) are rolled and fitted with each other.

5. A hydraulic pile foundation shear resistance detection device according to claim 4, characterized in that: The upper surface of the middle circle arc frame (501) is symmetrically fixed with end cylinders (504), and the upper ends of the symmetrically arranged end cylinders (504) are sleeved with lever frames (505). The lower surface of one end of the counterweight placement plate (4) is provided with an arc groove, and the lever frame (505) and the surface of the arc groove are rotatably fitted with each other.

6. A hydraulic pile foundation shear resistance testing device according to claim 1, characterized in that: The lower surface of the outer arc frame (701) is evenly and clamped with outer ball bearings (702), and both ends of the upper surface of the outer arc frame (701) are fixedly mounted with support cylinders (703). The upper ends of the support cylinders (703) are sleeved with support circular sleeves (704). Semicircular support grooves are symmetrically formed on the lower surface of one end of the counterweight placement plate (4), and the support circular sleeves (704) and the semicircular support grooves are slidably fitted with each other.

7. A hydraulic pile foundation shear resistance detection device according to claim 1, characterized in that: An adjustment groove is provided at one end of the counterweight placement plate (4), an L-shaped baffle plate (18) is inserted into the adjustment groove, and fixing threaded holes (19) are symmetrically and linearly provided on the counterweight placement plate (4), the fixing threaded holes (19) penetrate the L-shaped baffle plate (18), and fastening screws (20) are symmetrically fixedly installed on the upper surface of the counterweight placement plate (4), and the fastening screws (20) and the fixing threaded holes (19) are rotatably engaged with each other.

8. A hydraulic pile foundation shear resistance testing device according to claim 1, characterized in that: Monitoring bearings (21) are fixedly mounted on both side surfaces of the monitoring arc plate (11), and the monitoring bearings (21) and the inner walls of the inner ring double convex grooves (10) are rollingly fitted with each other. The linkage rod (15) is an elastic rod, and linkage grooves (22) are provided on both side outer walls of one end of the counterweight placement plate (4). A clamping rod (23) is fixedly mounted on one end of the linkage rod (15), and the clamping rod (23) and the linkage groove (22) are slidingly fitted with each other.

9. A hydraulic pile foundation shear resistance detection device according to claim 8, characterized in that: The clamping variable force assembly (9) further comprises a symmetrically arranged arc-shaped fixing plate (903), both ends of which are fixedly connected to each other via a stabilizing bolt (904), and the outer surfaces of the symmetrically arranged arc-shaped fixing plates (903) are fixedly mounted with semicircular arc-shaped rods (906) via supporting rods (905), and both ends of the semicircular arc-shaped rods (906) on one side are fixedly mounted with plug-in blocks (907), and both ends of the semicircular arc-shaped rods (906) on the other side are fixedly mounted with plug-in blocks (907). Both ends are provided with plug-in grooves (908), the plug-in blocks (907) and the plug-in grooves (908) are tightly plugged into each other, the variable force rope (901) is symmetrically and fixedly mounted on the outer surface of the arc-shaped fixing plate (903) on one side, the variable force rope (901) and the semicircular arc-shaped rod (906) fit each other, and both ends of the mounting plate (902) are fixedly connected to one end surface of the counterweight placement plate (4) through mounting screws (909).

10. A method for using a hydraulic pile foundation shear resistance detection device according to any one of claims 1 to 9, characterized in that: The method of use includes the following steps: S1: Select a suitable position to install the fan-shaped fixing plate (2), the staff splices the fan-shaped fixing plate (2), and then places the pile basic body (1) at the center of the fan-shaped fixing plate (2) spliced ​​into a circle, and then inserts the ground fixing component (3) into the ground; S2: Install the counterweight placement plate (4). When splicing the fan-shaped fixed plate (2), the staff clamps the pile basic body (1) with the clamping variable force assembly (9), and then fixes the variable force rope (901) in the clamping variable force assembly (9) to one end of the counterweight placement plate (4). At this time, one end of the variable force rope (901) is in a horizontal state under the action of the semicircular arc rod (906). At the same time, the staff inserts the middle circle arc frame (501) in the end lever assembly (5) into the middle circle double convex groove (6), and then inserts the outer ring in the load-bearing support assembly (7). The arc frame (701) is inserted into the outer ring sliding groove (8), and the staff moves the counterweight placement plate (4) to connect it with the lever frame (505) in the end lever assembly (5), and supports the counterweight placement plate (4) through the support cylinder (703) in the load-bearing support assembly (7), and then inserts the monitoring arc plate (11) into the inner ring double convex groove (10), and then connects the linkage rod (15) to the counterweight placement plate (4) through the clamping rod (23), so that the laser rangefinder (14) and the counterweight placement plate (4) can be linearly arranged; S3: Loading the counterweight blocks. After the staff has installed the device, the staff uses a suitable tool to place the counterweight blocks on the surface of the counterweight placement plate (4). By pulling the L-shaped baffle plate (18) and using the fastening screw (20), the length of the counterweight placement plate (4) can be adjusted, thereby increasing the number of counterweight blocks placed; S4: measuring the shear resistance of the pile basic body (1) under pulling forces in different directions. When a counterweight block is placed on the surface of the counterweight placement plate (4), a lateral shear force can be generated on the pile basic body (1) by clamping the variable force component (9). By closing the support cylinder (703) in the load-bearing support component (7), the counterweight block on the counterweight placement plate (4) can pull the pile basic body (1) horizontally. At this time, the displacement of the pile basic body (1) can be measured by the laser rangefinder (14). When the staff uses a tool to push the counterweight placement plate (4) to rotate on the surface of the circular fan-shaped fixed plate (2), the displacement of the pile basic body (1) at different positions under the same pulling force can be measured by the laser rangefinder (14), thereby detecting the shear resistance of the pile basic body (1) in different directions; S5: After the inspection is completed, the device is disassembled. After the inspection is completed, the staff first removes the counterweight block from the counterweight placement plate (4), and then releases the connection between the ground-inserted fixing assembly (3) and the ground. At this time, the fan-shaped fixing plate (2) is disassembled, and then the end lever assembly (5), the load-bearing support assembly (7), the laser rangefinder (14) and the clamping variable force assembly (9) are disassembled.

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