A pile horizontal load test detection device

Abstract

The present invention relates to the field of building construction technology, and discloses a pile foundation horizontal load test detection device, comprising a foundation, two groups of piers symmetrically arranged on the foundation, a jack arranged between the two groups of piers, and a beam connected between the two groups of piers, the top of the jack's force rod is in contact with the bottom of the beam, the pier comprises a base and a first column, a second column and a pad cast on the base, the top of the first column and the second column and the end of the beam are connected by a fixed rod, a first limiting plate is provided on one side of the pad, and a reinforcing assembly is provided in the first column and the second column; the driving assembly is used to drive the cutting piece to rotate. The present invention can ensure the integrity and stability of the test device, thereby ensuring the accuracy of the test; at the same time, by utilizing column structures of different thicknesses / different heights, the demolition effect of breaking the piers one by one is achieved, thereby improving the demolition efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a foundation pile horizontal load test detection device. Background Art

[0002] A horizontal static load test involves applying a step-by-step horizontal thrust to the top of a pile and observing the resulting horizontal displacement over time to determine the corresponding horizontal bearing capacity of a single pile. Static load tests employ testing methods that approximate the actual operating conditions of horizontal piles to determine the ultimate horizontal bearing capacity of a single pile. This is used as a design basis or for sampling and evaluating the bearing capacity of engineering piles. Except for engineering piles whose ultimate bearing capacity is controlled by the pile body bearing capacity, which are loaded to 1.5-2 times the design bearing capacity, all other test piles should be loaded to failure. Specifically, after the pile foundation construction is completed, a static load test is required to verify whether the ultimate bearing capacity of the pile foundation meets the design requirements. Currently, the most commonly used static load tests are the pile pile method and the anchor pile method. The pile pile method requires setting up a test platform at the center of the test pile, on which sandbags or concrete blocks are piled. The anchor pile method requires casting a reaction beam before the test begins to provide a reaction force.

[0003] In the existing technology, for some projects with space requirements, such as the bearing capacity testing project of the replacement piles for underground floor addition and renovation, although the anchor pile method is applicable to the above projects, the reaction beams need to be cast before the test, and after the test, the reaction beams need to be chiseled out and cannot be recycled. The chiseling process is time-consuming and labor-intensive, and the removed reaction beams contain a large number of fragments, which is not conducive to cleaning. This not only increases economic costs, but also consumes a lot of manpower. Summary of the Invention

[0004] The present invention provides a pile foundation horizontal load test detection device, which has the beneficial effect of improving the efficiency of chiseling out reaction beams, and solves the problem of the existing anchor pile method mentioned in the above background technology, in which the reaction beams need to be cast before the test, and after the test, the reaction beams need to be chiseled out and cannot be recycled. The chiseling process is time-consuming and labor-intensive, and a large number of reaction beam fragments are removed, which is not conducive to cleaning, which not only increases economic costs but also consumes a large amount of manpower.

[0005] The present invention provides the following technical solutions:

[0006] A pile horizontal load test detection device comprises a foundation, two groups of piers are symmetrically arranged on the foundation, a jack is arranged between the two groups of piers, and a crossbeam is connected between the two groups of piers, the top of the force rod of the jack is in contact with the bottom of the crossbeam, the pier comprises a base and a first column, a second column and a pad cast on the base, the top of the first column and the second column and the end of the crossbeam are connected by a fixing rod, a first limiting plate is provided on one side of the pad, and a reinforcement assembly is provided in each of the first column and the second column, and a rotatable cutting piece is provided in the reinforcement assembly;

[0007] The utility model also comprises a driving assembly arranged at both ends of the beam, and the driving assembly is used for driving the cutting piece to rotate.

[0008] As an optional solution of the pile foundation horizontal load test detection device described in the present invention, the reinforcement component includes a sleeve arranged in the first column and the second column, a rotating shaft is arranged in the sleeve, a screw is connected to the bottom end of the rotating shaft, and a threaded hole matching the screw is arranged in the base.

[0009] As an optional solution of the pile foundation horizontal load test detection device described in the present invention, the cutting piece includes a grinding head slidably arranged at the bottom end of the rotating shaft, a grinding head rod is connected to one side of the grinding head, the grinding head rod is slidably connected to the rotating shaft, and a first spring is connected between the grinding head and the rotating shaft.

[0010] As an optional solution of the pile foundation horizontal load test detection device described in the present invention, wherein: a sliding rod is slidably connected in the rotating shaft, the bottom end of the sliding rod is connected to a pressure rod, a second limit plate is arranged in the rotating shaft, a second spring is arranged between the bottom end of the sliding rod and the second limit plate, the grinding head rod is located in the rotating shaft and has a first downward pressing inclined surface at one end, and the bottom end of the pressure rod and the first downward pressing inclined surface are matched.

[0011] As an optional solution of the pile foundation horizontal load test detection device described in the present invention, a protective cover is provided on the outside of the drive assembly, the drive assembly includes a motor, the output shaft end of the motor and the top end of the rotating shaft are provided with bevel gears, the two sets of bevel gears are meshed, the rotating shafts located in the first column and the second column are extended to the outside of the first column and the second column, the top end of the rotating shaft is fixedly installed with a gear, and the two sets of gears are meshed.

[0012] As an optional solution of the pile foundation horizontal load test detection device described in the present invention, a cylinder is installed on the top of the protective cover, the telescopic rod end of the cylinder extends into the protective cover, the telescopic rod end of the cylinder is connected to a drive frame, and the drive frame and the top end of the sliding rod are fitted together.

[0013] As an optional solution of the pile foundation horizontal load test detection device described in the present invention, the inner wall of the casing is provided with a second groove, a third groove is provided on one side of the second groove, and a circular equidistant array of reinforcement blocks is provided in the third groove, and limiting rods are symmetrically arranged in the reinforcement blocks.

[0014] As an optional solution of the horizontal load test detection device for pile foundation described in the present invention, wherein: a through hole matching the limit rod is opened in the reinforcement block, a limit hole matching the limit rod is opened in the third groove, a third limit plate is provided on the side of the through hole close to the reinforcement block, and a third spring is connected between the third limit plate and the limit rod.

[0015] As an optional solution of the pile foundation horizontal load test detection device described in the present invention, a first groove is opened at one end of the rotating shaft, and during the upward movement of the rotating shaft, the first groove is used to make the reinforcement block disengage from the second groove.

[0016] As an optional solution of the pile foundation horizontal load test detection device described in the present invention, the first groove is provided with bevels on both the upper and lower sides, the limiting rod is provided with the second downward pressure slope near one end of the reinforcement block, and the bevel and the second downward pressure slope are matched.

[0017] The present invention has the following beneficial effects:

[0018] 1. The pile horizontal load test detection device is constructed by setting a foundation, symmetrically setting a base on the foundation, sequentially setting a first column, a second column, and a pad on the base, and simultaneously limiting the pad with a detachable first limit plate. A fixing rod is sequentially passed through the beam and the first column and the second column horizontally, so that the base, the first column, the second column, and the beam form a cast body, thereby ensuring the integrity and stability of the test device and thus the accuracy of the test. At the same time, the use of column structures of different thicknesses / heights achieves the effect of breaking the piers one by one, which is convenient for demolition.

[0019] 2. The pile foundation horizontal load test detection device is equipped with a reinforcement component in the first and second columns, including a sleeve and a rotating shaft arranged in the sleeve. The bottom of the rotating shaft is connected to a screw, and a threaded hole matching the screw is opened in the base to further ensure structural stability. A flexible grinding head is provided at the bottom of the rotating shaft. The rotating shaft drives the grinding head to rotate. Before demolition, the sleeve can be cut in an annular shape, further improving demolition efficiency. At the same time, the use of the sleeve reduces the generation of fragments, which is more conducive to manual cleaning of construction waste after demolition.

[0020] 3. The pile foundation horizontal load test detection device is configured by arranging a driving assembly on the top of the first column and the second column. First, the motor is used to rotate the rotating shaft in the first column through two sets of bevel gears, and then the rotating shaft in the second column is driven to rotate by two sets of gear transmission. At the same time, the cylinder is started to drive the driving frame downward, driving the pressure rod downward. After the bottom end of the pressure rod contacts the first downward pressing inclined surface on one side of the grinding head rod, the grinding head is pushed out of the rotating shaft. When the rotating shaft rotates, it drives the grinding head to cut and grind the inner wall of the casing, thereby realizing pre-cutting treatment of the casing and providing pre-treatment for subsequent demolition work.

[0021] 4. The pile foundation horizontal load test detection device respectively opens a second groove and a third groove in the casing. The opening of the third groove forms a thinner annular groove in the casing, thereby accelerating the subsequent cutting speed of the grinding head. In order to ensure the strength of the thinner position, a group of reinforcement blocks are arranged between the third groove and the rotating shaft. A limiting rod is arranged in the reinforcement block to ensure the structural strength of the test stage. As the screw and the base are disengaged, the rotating shaft moves upward. When the first groove moves to the reinforcement block, the limiting rod is pushed out by the elastic tension of the third spring and extends into the first groove. The limiting rod and the limiting hole are disengaged, and the tension spring pulls the reinforcement block upward, thereby extending the grinding head to the inner wall of the second groove, realizing the rotating shaft driving the grinding head to rotate and performing annular cutting on the thin wall. While ensuring the strength of the casing, a thin-walled structure is formed, further accelerating the dismantling speed and reducing labor consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the rotating shaft of the present invention;

[0024] Figure 3 This is a schematic cross-sectional structural diagram of the second column of the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the driving component of the present invention;

[0026] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the sleeve of the present invention;

[0027] Figure 6 This is a partially enlarged structural diagram of the reinforcing block of the present invention blocking the second groove;

[0028] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure of part A;

[0029] Figure 8 It is a partially enlarged structural diagram of the limiting rod and the limiting hole in the disengaged state of the present invention;

[0030] Figure 9 This is a partially enlarged structural schematic diagram of the grinding head of the present invention being located inside the second groove;

[0031] Figure 10 It is a top view and cross-sectional schematic diagram of the gear and shaft key connection structure of the present invention.

[0032] In the figure: 1. foundation; 2. jack; 3. base; 4. first column; 5. second column; 6. spacer; 7. first limit plate; 8. crossbeam; 9. fixing rod; 10. protective cover; 11. motor; 12. bevel gear; 13. rotating nut; 14. gear; 15. rotating shaft; 16. cylinder; 17. drive frame; 18. slide rod; 19. sleeve; 20. screw; 21. first groove; 22. grinding head; 23. first spring; 24. grinding head rod; 25. first downward pressing slope; 26. second spring; 27. second limit plate; 28. pressure rod; 29. reinforcement block; 30. limit rod; 31. second groove; 32. third groove; 33. tension spring; 34. third spring; 35. third limit plate; 36. limit hole; 37. groove; 38. second downward pressing slope. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] For example 1, please refer to Figures 1 to 10 The present invention discloses a pile foundation horizontal load test detection device, comprising a foundation 1, two sets of piers symmetrically arranged on the foundation 1, a jack 2 disposed between the two sets of piers, and a crossbeam 8 connected between the two sets of piers, with the top of the force application rod of the jack 2 in contact with the bottom of the crossbeam 8. The pier includes a base 3 and a first column 4, a second column 5, and a pad 6 cast on the base 3. The top of the first column 4 and the second column 5 and the end of the crossbeam 8 are connected by a fixing rod 9, and a first limit plate 7 is provided on one side of the pad 6.

[0035] In this embodiment, a cast-type reaction beam is used for testing, including a crossbeam 8 and piers at both ends of the crossbeam 8. The piers include a first column 4, a second column 5, a pad 6 and a first limit plate 7. A spacing is provided between the first column 4, the second column 5 and the pad 6 to provide a force gap for the operation of chiseling out the reaction beam. A fixed rod 9 is used to penetrate and connect the crossbeam 8, the first column 4 and the second column 5, and the jack 2 is started to apply pressure to the crossbeam 8. A displacement sensor is provided on the crossbeam 8, and a static load test analyzer is connected to one side of the displacement sensor. The working principles of the displacement sensor and the static load test analyzer are well-known technologies and will not be repeated in this embodiment.

[0036] It should be noted that when disassembling, the hydraulic expander used for chiseling is first placed between the first column 4 and the second column 5. Since the width of the first column 4 is narrower than that of the second column 5, the first column 4 can be broken after the hydraulic expander is started; then the hydraulic expander is placed between the second column 5 and the cushion block 6. Since a first limit plate 7 is provided on one side of the cushion block 6, the connection strength of the cushion block 6 is greater than that of the second column 5. When the hydraulic expander is started, the second column 5 can be broken, and the dismantling of the first column 4 and the second column 5 is completed, thereby reducing labor consumption.

[0037] Example 2: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 10 A reinforcement component is provided in the first column 4 and the second column 5. The reinforcement component includes a sleeve 19 provided in the first column 4 and the second column 5. A rotating shaft 15 is provided in the sleeve 19. A screw 20 is connected to the bottom end of the rotating shaft 15. A threaded hole matching the screw 20 is provided in the base 3.

[0038] At the same time, in order to ensure the test strength of the pier, a sleeve 19 is provided in the first column 4 and the second column 5 formed by pouring concrete, and the sleeve 19 is used to increase the strength of the first column 4 and the second column 5. At the same time, in order to speed up the dismantling efficiency of the first column 4 and the second column 5, a rotatable cutting piece is provided in the second column 5, and the cutting piece includes a grinding head 22 slidably set at the bottom end of the rotating shaft 15, and a grinding head rod 24 is connected to one side of the grinding head 22. The grinding head rod 24 is slidably connected to the rotating shaft 15, and a first spring 23 is connected between the grinding head 22 and the rotating shaft 15.

[0039] In this embodiment, a rotating shaft 15 is provided in the sleeve 19, and the rotation of the shaft 15 drives the grinding head 22 to rotate along the inner wall of the sleeve 19, thereby performing an annular cutting on the sleeve 19, thereby realizing the cutting process of the sleeve 19 before dismantling, further accelerating the efficiency of dismantling.

[0040] It should be noted that a screw rod 20 is connected to the bottom end of the rotating shaft 15, which is fixedly connected to the base 3 by means of the screw rod 20. The above-mentioned fixing rod 9 passes through the rotating shaft 15, the sliding rod 18 and the sleeve 19 in sequence, so that the base 3, the first column 4, the second column 5 and the crossbeam 8 form an overall structure of the reaction beam, ensuring the integrity and stability of the test device, thereby ensuring the accuracy of the test.

[0041] It should be noted that the gear 14 and the rotating shaft 15 are connected by a spline structure, and the rotating shaft 15 and the bevel gear 12 are also connected by a spline structure, ensuring that the lifting and lowering of the rotating shaft 15 will not interfere with the rotation of the rotating shaft 15 driven by the drive component.

[0042] Example 3: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 10 , further comprising drive assemblies disposed at both ends of the crossbeam 8, which are used to drive the cutting piece to rotate. A protective cover 10 is provided on the exterior of the drive assembly. The drive assembly includes a motor 11. Bevel gears 12 are mounted on both the output shaft end of the motor 11 and the top of a rotating shaft 15. The two sets of bevel gears 12 mesh. The rotating shafts 15 located within the first and second columns 4 and 5 extend to the exterior of the first and second columns 4 and 5. Gears 14 are fixedly mounted on the top of the rotating shafts 15. The two sets of gears 14 mesh.

[0043] In this embodiment, a drive assembly is provided at both ends of the beam 8, and the drive assembly includes a motor 11. A gear 14 is installed at the top of the rotating shaft 15, and the two sets of gears 14 are meshed. A bevel gear 12 is installed at the top of the rotating shaft 15 located in the first column 4, and the output shaft end of the motor 11 is also fixedly mounted with a bevel gear 12. The two sets of bevel gears 12 are meshed, and the motor 11 is started. The meshing rotation of the bevel gear 12 drives the rotating shaft 15 in the first column 4 to rotate, and the transmission of the gear 14 drives the rotating shaft 15 in the second column 5 to rotate synchronously.

[0044] A slide rod 18 is slidably connected to the rotating shaft 15, and a pressure rod 28 is connected to the bottom end of the slide rod 18. A second limit plate 27 is provided in the rotating shaft 15, and a second spring 26 is provided between the bottom end of the slide rod 18 and the second limit plate 27. The grinding head rod 24 is located in the rotating shaft 15 and has a first downward pressing inclined surface 25 at one end. The bottom end of the pressure rod 28 is matched with the first downward pressing inclined surface 25. A cylinder 16 is installed on the top of the protective cover 10. The telescopic rod end of the cylinder 16 extends into the protective cover 10. The telescopic rod end of the cylinder 16 is connected to the drive frame 17, and the drive frame 17 and the top end of the slide rod 18 are set in a close fit.

[0045] In this embodiment, a slide rod 18 is slidingly provided in the rotating shaft 15, and a pressure rod 28 is connected to the bottom end of the slide rod 18. At the same time, a grinding head rod 24 is elastically connected in the horizontal direction on one side of the bottom end of the rotating shaft 15. A group of cylinders 16 are arranged above the slide rod 18. When the rotating shaft 15 rotates, the cylinder 16 is started, and the cylinder 16 drives the driving frame 17 to move downward. The driving frame 17 presses down the slide rod 18, thereby driving the pressure rod 28 to move downward. After the bottom end of the pressure rod 28 contacts the first downward pressing inclined surface 25 on one side of the grinding head rod 24, the grinding head 22 is pushed out to the side of the rotating shaft 15 as the pressure rod 28 moves downward, so that the rotating shaft 15 drives the grinding head 22 to cut and grind the inner wall of the sleeve 19 during the rotation process.

[0046] It should be noted that the driving assembly is arranged in the protective cover 10 and is configured as a detachable structure, which effectively avoids interference with the beam 8 and other casting structures.

[0047] Example 4: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 10 A second groove 31 is formed on the inner wall of the sleeve 19 , and a third groove 32 is formed on one side of the second groove 31 .

[0048] In this embodiment, a second groove 31 and a third groove 32 are provided on one side of the inner wall of the sleeve 19. The second groove 31 is used to form a thinner annular groove in the sleeve 19. Before performing annular cutting, it is necessary to rotate the rotating shaft 15 to separate the screw 20 and the base 3. Therefore, as the rotating shaft 15 rises, the grinding head 22 can be moved into the second groove 31. At this time, the motor 11 and the cylinder 16 are started again to lift the grinding head 22 to the inner wall of the second groove 31 while the motor 11 is used to drive the rotating shaft 15 to rotate, and annular cutting is performed on the thin-walled position, thereby speeding up the cutting speed and ultimately improving the efficiency of the entire demolition work.

[0049] It should be noted that the use of the sleeve 19 can maintain the integrity of the first column 4 and the second column 5, reduce the generation of fragments, and is more conducive to manual cleaning of construction waste after demolition.

[0050] The third groove 32 includes a circular array of equidistant reinforcement blocks 29. Limit rods 30 are symmetrically positioned within the reinforcement blocks 29. Through holes are defined within the reinforcement blocks 29 to mate with the limit rods 30. A limit hole 36 is defined within the third groove 32 to mate with the limit rods 30. A third limit plate 35 is positioned on the side of the through hole near the reinforcement block 29. A third spring 34 is connected between the third limit plate 35 and the limit rod 30. A first groove 21 is defined at one end of the rotating shaft 15. During upward movement of the rotating shaft 15, the first groove 21 allows the reinforcement blocks 29 to disengage from the second groove 31.

[0051] Specifically, there are at least six groups of reinforcement blocks 29 in a circular equidistant array in the third groove 32. The reinforcement blocks 29 are fitted between the rotating shaft 15 and the third groove 32, thereby increasing the structural strength of the thin-walled position in the rotating shaft 15. When the rotating shaft 15 is rotated, the screw 20 is screwed out of the base 3, and the rotating shaft 15 moves upward. When the first groove 21 moves to the reinforcement block 29, the limiting rod 30 is pushed out by the elastic tension of the third spring 34 and extends into the first groove 21, and the limiting rod 30 and the limiting hole 36 are disengaged. Since the reinforcement block 29 is connected to the tension spring 33 on the top wall of the third groove 32, the tension spring 33 pulls the reinforcement block 29 upward, thereby creating a gap between the second groove 31 and the rotating shaft 15, so that the grinding head 22 extends to the inner wall of the second groove 31, so that the rotating shaft 15 drives the grinding head 22 to rotate and performs annular cutting on the thin wall.

[0052] It should be noted that although the second groove 31 and the third groove 32 make cutting faster, they can also easily lead to groove breakage. Therefore, a reinforcing block 29 is provided to ensure the strength of the groove position during testing.

[0053] The first groove 21 is provided with grooves 37 on both the upper and lower sides. The limiting rod 30 is provided with a second downward pressing inclined surface 38 on one end close to the reinforcing block 29 . The grooves 37 and the second downward pressing inclined surface 38 are matched with each other.

[0054] In this embodiment, when the first groove 21 moves upward, the second downward pressing slope 38 and the groove 37 are used to cooperate to avoid interference with the limit rod 30 in the process of the first groove 21 following the upward movement of the rotating shaft 15, so that the limit rod 30 is smoothly disengaged from the limit hole 36, allowing the grinding head 22 to extend into the second groove 31.

[0055] Working principle:

[0056] First, the rotating shaft 15 is connected to the sleeve 19, and then the sleeve 19 and the screw 20 are connected to the embedded parts in the base 3. Then, the first column 4, the second column 5, and the cushion block 6 are cast uniformly. In order to improve the strength of the cushion block 6, a first limiting plate 7 for reinforcing the cushion block 6 is further provided at the base 3. Finally, an integral cast structure consisting of the base 3, the cushion block 6, the first column 4, and the second column 5 is formed.

[0057] Start jack 2 and the installed displacement sensor and static load test analyzer to carry out load test. After completion, dismantle the cast structure.

[0058] Demolition process:

[0059] Loosen the fixing rod 9 and remove the crossbeam 8;

[0060] Twist the rotating nut 13 to drive the rotating shaft 15 to rotate, first disengaging the screw 20 and the base 3. As the rotating shaft 15 moves upward, the reinforcing block 29 also disengages from the second groove 31. At the same time, the starting cylinder 16 uses the slide rod 18 to push the grinding head 22 into the second groove 31, and starts the motor 11 to drive the rotating shaft 15 and the grinding head 22 to perform annular cutting on the thin wall of the rotating shaft 15. When disassembling, the hydraulic expander used for chiseling is first placed between the first column 4 and the second column 5. Since the width of the first column 4 is narrower than that of the second column 5, the first column 4 can be broken after the hydraulic expander is started; then the hydraulic expander is placed between the second column 5 and the pad 6. Since the pad 6 is strong, the second column 5 can be broken by starting the hydraulic expander, and the dismantling is completed quickly, reducing labor consumption.

[0061] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A pile horizontal load test device, comprising a foundation, two sets of buttresses symmetrically arranged on the foundation, a jack disposed between the two sets of buttresses, and a crossbeam connecting the two sets of buttresses, wherein the top of the jack's force rod contacts the bottom of the crossbeam, and the device is characterized by: The pier includes a base and a first column, a second column and a pad cast on the base. The top ends of the first column and the second column and the end of the beam are connected through a fixing rod. A first limit plate is provided on one side of the pad. A reinforcement assembly is provided in each of the first column and the second column, and a rotatable cutting piece is provided in the reinforcement assembly. It also includes a driving assembly arranged at both ends of the beam, and the driving assembly is used to drive the cutting piece to rotate; The reinforcement assembly includes a sleeve disposed in the first column and the second column, a rotating shaft is disposed in the sleeve, a screw is connected to the bottom end of the rotating shaft, and a threaded hole matching the screw is disposed in the base; The cutting piece includes a grinding head slidably arranged at the bottom end of the rotating shaft, a grinding head rod is connected to one side of the grinding head, the grinding head rod is slidably connected to the rotating shaft, and a first spring is connected between the grinding head and the rotating shaft; A sliding rod is slidably connected in the rotating shaft, a pressure rod is connected to the bottom end of the sliding rod, a second limit plate is provided in the rotating shaft, a second spring is provided between the bottom end of the sliding rod and the second limit plate, a first downward pressing inclined surface is provided at one end of the grinding head rod located in the rotating shaft, and the bottom end of the pressure rod is matched with the first downward pressing inclined surface; A protective cover is provided on the outside of the drive assembly, and the drive assembly includes a motor. The output shaft end and the top end of the rotating shaft of the motor are both provided with bevel gears, and the two sets of bevel gears are meshed. The rotating shafts located in the first column and the second column are both extended to the outside of the first column and the second column. The top ends of the rotating shafts are both fixedly mounted with gears, and the two sets of gears are meshed. A cylinder is installed on the top of the protective cover, and the telescopic rod end of the cylinder extends into the protective cover. The telescopic rod end of the cylinder is connected to a driving frame, and the driving frame and the top end of the sliding rod are fitted together.

2. A pile horizontal load test detection device according to claim 1, characterized in that: A second groove is provided on the inner wall of the sleeve, a third groove is provided on one side of the second groove, and reinforcing blocks are arranged in an annular equidistant array in the third groove. A tension spring is connected between the reinforcing blocks and the third groove, and limiting rods are symmetrically arranged in the reinforcing blocks.

3. A pile horizontal load test detection device according to claim 2, characterized in that: A through hole matching the limit rod is opened in the reinforcement block, a limit hole matching the limit rod is opened in the third groove, a third limit plate is set on the side of the through hole close to the reinforcement block, and a third spring is connected between the third limit plate and the limit rod.

4. A pile horizontal load test detection device according to claim 3, characterized in that: A first groove is provided at one end of the rotating shaft. When the rotating shaft moves upward, the first groove is used to separate the reinforcing block from the second groove.

5. A pile horizontal load test detection device according to claim 4, characterized in that: The first groove is provided with bevels on both the upper and lower sides, and a second downward pressing inclined surface is provided on one end of the limiting rod close to the reinforcing block, and the bevels and the second downward pressing inclined surface are matched.

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