Foundation pile horizontal load test detection device

Abstract

The invention relates to the technical field of building construction, and discloses a foundation pile horizontal load test detection device which comprises a foundation, two sets of buttresses are symmetrically arranged on the foundation, a jack is arranged between the two sets of buttresses, a cross beam is connected between the two sets of buttresses, and the top end of a force application rod of the jack makes contact with the bottom of the cross beam. The buttress comprises a base, a first stand column, a second stand column and a cushion block, the first stand column, the second stand column and the cushion block are poured on the base, the top end of the first stand column, the top end of the second stand column and the end of the cross beam are connected through a fixing rod in a penetrating mode, a first limiting plate is arranged on one side of the cushion block, and reinforcing assemblies are arranged in the first stand column and the second stand column. And the driving assembly is used for driving the cutting piece to rotate. The integrity and stability of the test device can be ensured, so that the test accuracy is ensured; meanwhile, by means of the stand column structures of different thicknesses / different heights, the dismantling effect of supporting and breaking the buttresses one by one is achieved, and the dismantling efficiency is improved.

Description

Technical Field

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

[0002] The horizontal static load test refers to a test method that applies horizontal thrust step by step to the top of the pile, observes the horizontal displacement of the top of the pile over time, and determines the corresponding horizontal bearing capacity of the single pile. The static load test uses a test method close to the actual working conditions of the horizontal pile to determine the horizontal ultimate bearing capacity of the single pile as a design basis, or to sample and evaluate the bearing capacity of the engineering pile. Except for the engineering pile test that controls the ultimate bearing capacity with the pile body bearing capacity, which is loaded to 1.5-2 times the bearing capacity design value, the remaining 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 can meet the design requirements. At present, the most commonly used static load tests are the pile loading method and the anchor pile method. The pile loading method requires a test platform to be set up in the center of the test pile, and sand bags or concrete blocks are piled on the platform; the anchor pile method requires a reaction beam to be cast before the test begins to provide a reaction force.

[0003] In the prior art, for some projects with space requirements, such as the bearing capacity test project of the replacement piles for the underground floor addition and renovation, although the anchor pile method is applicable to the above projects, the reaction beam needs to be cast before the test, and after the test, the reaction beam needs to be chiseled out and cannot be recycled. The chiseling process is time-consuming and labor-intensive, and there are many fragments of the removed reaction beam, which is not conducive to cleaning, which not only increases the economic cost, 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 the reaction beams are removed. There are many fragments, which are not conducive to cleaning, which not only increases the economic cost, but also consumes a lot of manpower.

[0005] The present invention provides the following technical solutions: A pile horizontal load test detection device, comprising 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 cushion block cast on the base, the top of the first column and the second column and the end of the crossbeam are connected through a fixing rod, a first limiting plate is arranged on one side of the cushion block, and a reinforcing assembly is arranged in the first column and the second column, and a rotatable cutting piece is arranged in the reinforcing assembly; It also includes driving components arranged at both ends of the beam, and the driving components are used to drive the cutting piece to rotate.

[0006] 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.

[0007] 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.

[0008] As an optional scheme 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, a pressure rod is connected to the bottom end of the sliding 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 pressure inclined surface at one end, and the bottom end of the pressure rod and the first downward pressure inclined surface are matched.

[0009] 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 driving component, the driving component 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, gears are fixedly installed on the top end of the rotating shaft, and the two sets of gears are meshed.

[0010] 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.

[0011] 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 limit rods are symmetrically arranged in the reinforcement blocks.

[0012] As an optional solution of the pile foundation horizontal load test detection device 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 arranged 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.

[0013] 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.

[0014] 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 at one end close to the reinforcement block, and the bevel and the second downward pressure slope are matched.

[0015] The present invention has the following beneficial effects: 1. The pile horizontal load test detection device is provided by setting a foundation, symmetrically setting a base on the foundation, sequentially setting a first column, a second column and a cushion block on the base, and simultaneously limiting the cushion block by using a detachable first limiting plate, and horizontally penetrating the beam and the first column and the second column in sequence by using a fixing rod, 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, thereby ensuring the accuracy of the test; at the same time, by using a column structure of different thicknesses / different heights, the effect of dismantling the piers one by one is achieved, which is conducive to the dismantling; 2. The pile foundation horizontal load test detection device is provided with a reinforcement component in the first column and the second column, including a sleeve and a rotating shaft arranged in the sleeve, a screw is connected to the bottom of the rotating shaft, and a threaded hole matching the screw is opened in the base, so as to further ensure the structural stability, and an elastically connected grinding head is provided at the bottom of the rotating shaft, and the grinding head is driven to rotate by the rotating shaft. Before dismantling, the sleeve can be cut in an annular manner, so as to further improve the dismantling efficiency; at the same time, the sleeve is used to reduce the generation of fragments, which is more conducive to manual cleaning of construction waste after dismantling; 3. The pile foundation horizontal load test detection device is provided with a driving assembly at the top of the first column and the second column. First, the motor is used to drive the rotating shaft in the first column to rotate 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 to move downward, and the driving rod is driven 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, so that during the rotation of the rotating shaft, the grinding head is driven to cut and grind the inner wall of the casing, thereby realizing the pre-cutting treatment of the casing and providing pre-treatment for subsequent demolition work; 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 makes the casing form a thinner annular groove, 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 limit rod is arranged in the reinforcement block to ensure the structural strength in 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 limit rod is pushed out by the elastic tension of the third spring and extends into the first groove. The limit rod and the limit hole are disengaged, and the tension spring pulls the reinforcement block upward, so that the grinding head extends to the inner wall of the second groove, so that the rotating shaft drives the grinding head to rotate, and annular cutting is performed on the thin wall. While ensuring the strength of the casing, a thin-walled structure is formed, which further accelerates the dismantling speed and reduces labor consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the internal three-dimensional structure of the rotating shaft of the present invention; Figure 3 It is a schematic cross-sectional structural diagram of the second column of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the driving component of the present invention; Figure 5 It is a schematic diagram of the internal three-dimensional structure of the sleeve of the present invention; Figure 6 It is a partially enlarged structural schematic diagram of the state where the reinforcing block of the present invention blocks the second groove; Figure 7 For the present invention Figure 6 The enlarged structural diagram of part A in the middle; Figure 8 It is a partially enlarged structural schematic diagram of the limiting rod and the limiting hole in the disengaged state of the present invention; Fig. 9 It is a partially enlarged structural schematic diagram of the grinding head of the present invention being located inside the second groove; Fig.10 It is a top view and cross-sectional schematic diagram of the gear and shaft key connection structure of the present invention.

[0017] In the figure: 1, foundation; 2, jack; 3, base; 4, first column; 5, second column; 6, cushion block; 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, driving frame; 18, sliding rod; 19, sleeve; 20, screw; 21, first groove; 22, grinding head; 23, first spring; 24, grinding head rod; 25, first downward pressing inclined surface; 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 inclined surface. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0019] For example, see Figures 1 to 10 The present invention discloses a pile horizontal load test detection device, including a foundation 1, two groups of piers are symmetrically arranged on the foundation 1, a jack 2 is arranged between the two groups of piers, and a cross beam 8 is connected between the two groups of piers, and the top of the force rod of the jack 2 is in contact with the bottom of the cross beam 8. The pier includes a base 3 and a first column 4, a second column 5 and a cushion block 6 cast on the base 3, the top of the first column 4, the second column 5 and the end of the cross beam 8 are connected through a fixing rod 9, and a first limit plate 7 is provided on one side of the cushion block 6.

[0020] In this embodiment, a cast-in-place reaction beam is used for the test, 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 cushion block 6 and a first limit plate 7, and a spacing is provided between the first column 4, the second column 5 and the cushion block 6 to provide a force gap for the operation of chiseling out the reaction beam. A fixing 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.

[0021] 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.

[0022] Example 2: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 10 A reinforcing assembly is provided in both the first column 4 and the second column 5. The reinforcing assembly 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.

[0023] At the same time, in order to ensure the test strength of the pier, a sleeve 19 is arranged in the first column 4 and the second column 5 formed by concrete casting, 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 arranged in the second column 5, and the cutting piece includes a grinding head 22 slidably arranged at the bottom end of the rotating shaft 15, 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.

[0024] In this embodiment, a rotating shaft 15 is provided in the sleeve 19, and the rotation of the rotating 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 achieving the cutting process of the sleeve 19 before dismantling, further accelerating the dismantling efficiency.

[0025] It should be noted that a screw rod 20 is connected to the bottom end of the rotating shaft 15, and the screw rod 20 and the base 3 are fixedly connected. 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 cross beam 8 form an overall structure of the reaction beam, thereby ensuring the integrity and stability of the test device, thereby ensuring the accuracy of the test.

[0026] It should be noted that the gear 14 and the shaft 15 are connected via a spline structure, and the shaft 15 and the bevel gear 12 are also connected via a spline structure, to ensure that the lifting and lowering of the shaft 15 will not interfere with the rotation of the shaft 15 driven by the driving assembly.

[0027] Example 3: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 10 , and also includes a driving assembly arranged at both ends of the crossbeam 8, and the driving assembly is used to drive the cutting piece to rotate. A protective cover 10 is arranged outside the driving assembly, and the driving assembly includes a motor 11, and the output shaft end of the motor 11 and the top of the rotating shaft 15 are both provided with a bevel gear 12, and the two sets of bevel gears 12 are meshed. The rotating shaft 15 located in the first column 4 and the second column 5 are both extended to the outside of the first column 4 and the second column 5, and the top of the rotating shaft 15 is fixedly installed with a gear 14, and the two sets of gears 14 are meshed.

[0028] In this embodiment, a driving assembly is provided at both ends of the crossbeam 8, and the driving 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 installed 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.

[0029] A slide bar 18 is slidably connected in the rotating shaft 15, a pressure bar 28 is connected to the bottom end of the slide bar 18, a second limit plate 27 is arranged in the rotating shaft 15, a second spring 26 is arranged between the bottom end of the slide bar 18 and the second limit plate 27, a first downward pressing inclined surface 25 is opened at one end of the grinding head rod 24 located in the rotating shaft 15, and the bottom end of the pressure bar 28 is matched with the first downward pressing inclined surface 25. A cylinder 16 is installed on the top of the protective cover 10, and the telescopic rod end of the cylinder 16 extends into the protective cover 10, and the telescopic rod end of the cylinder 16 is connected to the driving frame 17, and the driving frame 17 and the top end of the slide bar 18 are arranged in close contact.

[0030] In this embodiment, a slide rod 18 is slidably arranged 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 to one side of the bottom end of the rotating shaft 15 in the horizontal direction. 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 of 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.

[0031] It should be noted that the driving assembly is disposed in the protective cover 10 and is configured as a detachable structure, which effectively avoids interference with the crossbeam 8 and other casting structures.

[0032] Example 4: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 10A 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 .

[0033] In this embodiment, a second groove 31 and a third groove 32 are opened on one side of the inner wall of the sleeve 19. The second groove 31 is used to form a thinner annular groove on 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, and the grinding head 22 is lifted to the inner wall of the second groove 31. At the same time, the rotating shaft 15 is driven to rotate by the motor 11 to perform annular cutting on the thin-walled position, thereby accelerating the cutting speed and ultimately improving the efficiency of the entire demolition work.

[0034] 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.

[0035] The third groove 32 has reinforcement blocks 29 in an annular equidistant array, and the reinforcement blocks 29 are symmetrically provided with limit rods 30. The reinforcement blocks 29 are provided with through holes matching the limit rods 30, and the third groove 32 is provided with limit holes 36 matching the limit rods 30. A third limit plate 35 is provided on the side of the through hole close to the reinforcement block 29, and a third spring 34 is connected between the third limit plate 35 and the limit rod 30. A first groove 21 is provided at one end of the rotating shaft 15, and the first groove 21 is used to separate the reinforcement block 29 from the second groove 31 during the upward movement of the rotating shaft 15.

[0036] 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 rotating shaft 15 moves upward during the process of the screw 20 screwing out of the base 3. 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 is disengaged from the limiting hole 36. 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.

[0037] It should be noted that although the second groove 31 and the third groove 32 make cutting quicker, it is also easy to cause the grooves to break. Therefore, a reinforcing block 29 is provided to ensure the strength of the groove position during detection.

[0038] 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 at one end close to the reinforcing block 29 . The grooves 37 and the second downward pressing inclined surface 38 are matched with each other.

[0039] In this embodiment, when the first groove 21 moves upward, the second downward pressing slope 38 and the groove 37 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 can be smoothly disengaged from the limit hole 36, allowing the grinding head 22 to extend into the second groove 31.

[0040] Working principle: 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, and then the first column 4, the second column 5 and the cushion block 6 are uniformly cast. In order to improve the strength of the cushion block 6, the base 3 is also provided with a first limit plate 7 for reinforcing the cushion block 6, and finally an integrated casting structure consisting of the base 3, the cushion block 6, the first column 4 and the second column 5 is formed; Start jack 2 and the displacement sensor and static load test analyzer to carry out load test. After completion, dismantle the cast structure.

[0041] Removal process: Loosen the fixing rod 9 and remove the crossbeam 8; The rotating nut 13 is turned to drive the rotating shaft 15 to rotate, so that the screw rod 20 and the base 3 are disengaged first. As the rotating shaft 15 moves upward, the reinforcing block 29 is also disengaged from the second groove 31. At the same time, the cylinder 16 is started to push the grinding head 22 into the second groove 31 using the sliding rod 18, and the motor 11 is started 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 cushion block 6. Since the cushion block 6 is relatively strong, the second column 5 can be broken by starting the hydraulic expander, so that the dismantling is completed quickly and the labor consumption is reduced.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] 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 the scope of protection of the present invention.

Claims

1. A pile horizontal load test detection device, comprising a foundation (1), two groups of piers are symmetrically arranged on the foundation (1), a jack (2) is arranged between the two groups of piers, and a crossbeam (8) is connected between the two groups of piers, the top of the force application rod of the jack (2) is in contact with the bottom of the crossbeam (8), characterized in that: The pier comprises a base (3) and a first column (4), a second column (5) and a cushion block (6) cast on the base (3); the top ends of the first column (4) and the second column (5) and the end of the crossbeam (8) are connected through a fixing rod (9); a first limiting plate (7) is provided on one side of the cushion block (6); and the first column (4) and the second column (5) are both provided with a reinforcement component, and a rotatable cutting piece is provided in the reinforcement component; It also includes drive components arranged at both ends of the crossbeam (8), and the drive components are used to drive the cutting piece to rotate.

2. A pile horizontal load test detection device according to claim 1, characterized in that: The reinforcing assembly comprises a sleeve (19) arranged in the first column (4) and the second column (5), a rotating shaft (15) is arranged in the sleeve (19), a screw rod (20) is connected to the bottom end of the rotating shaft (15), and a threaded hole matching the screw rod (20) is arranged in the base (3).

3. A pile horizontal load test detection device according to claim 2, characterized in that: The cutting piece comprises a grinding head (22) slidably arranged at the bottom end of the rotating shaft (15); a grinding head rod (24) is connected to one side of the grinding head (22); the grinding head rod (24) and the rotating shaft (15) are slidably connected; and a first spring (23) is connected between the grinding head (22) and the rotating shaft (15).

4. A pile horizontal load test detection device according to claim 3, characterized in that: A slide rod (18) is slidably connected inside 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 inside 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). A first downward pressing inclined surface (25) is provided at one end of the grinding head rod (24) located inside the rotating shaft (15), and the bottom end of the pressure rod (28) and the first downward pressing inclined surface (25) are matched.

5. A pile horizontal load test detection device according to claim 4, characterized in that: A protective cover (10) is provided on the outside of the driving assembly. The driving assembly comprises a motor (11). The output shaft end of the motor (11) and the top end of the rotating shaft (15) are both provided with bevel gears (12). Two sets of the bevel gears (12) are meshed. The rotating shafts (15) located inside the first column (4) and the second column (5) extend to the outside of the first column (4) and the second column (5). A gear (14) is fixedly mounted on the top end of the rotating shaft (15). The two sets of the gears (14) are meshed.

6. A pile horizontal load test detection device according to claim 5, characterized in that: A cylinder (16) is installed on the top of the protective cover (10), and 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 a drive frame (17), and the drive frame (17) and the top end of the slide rod (18) are arranged in close contact.

7. A pile horizontal load test detection device according to claim 3, characterized in that: The inner wall of the sleeve (19) is provided with a second groove (31), a third groove (32) is provided on one side of the second groove (31), reinforcing blocks (29) are arranged in an annular equidistant array in the third groove (32), a tension spring (33) is connected between the reinforcing block (29) and the third groove (32), and limiting rods (30) are symmetrically arranged in the reinforcing block (29).

8. A pile horizontal load test detection device according to claim 7, characterized in that: A through hole matching the limiting rod (30) is provided in the reinforcing block (29), a limiting hole (36) matching the limiting rod (30) is provided in the third groove (32), a third limiting plate (35) is provided on one side of the through hole close to the reinforcing block (29), and a third spring (34) is connected between the third limiting plate (35) and the limiting rod (30).

9. A pile horizontal load test detection device according to claim 8, characterized in that: A first groove (21) is formed at one end of the rotating shaft (15). During the upward movement of the rotating shaft (15), the first groove (21) is used to enable the reinforcing block (29) to be separated from the second groove (31).

10. A pile horizontal load test detection device according to claim 9, characterized in that: The first groove (21) is provided with grooves (37) on both upper and lower sides, and the limiting rod (30) is provided with a second downward pressing inclined surface (38) at one end close to the reinforcing block (29), and the groove (37) and the second downward pressing inclined surface (38) are matched.

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