Pile foundation detection device

Abstract

The utility model relates to the technical field of constructional engineering, in particular to a pile foundation detection device which comprises a ground and a detection assembly arranged on the surface of the ground, the detection assembly comprises a portal frame, the top of the portal frame is fixedly connected with a hydraulic pump, the top of the inner wall of the portal frame is fixedly connected with a hydraulic cylinder, and the hydraulic cylinder is communicated with the hydraulic pump through the top of the portal frame. A connecting block is fixed to the top of the telescopic plate; a pulling plate is fixedly connected to the top of the connecting block; a spring is fixedly connected to the outer wall of the pulling plate; a fixing block is fixedly connected to the top of the pressing plate; a pile foundation is installed in the ground, a clamping block is arranged outside the pile foundation, and an inserting groove is formed in the clamping block. According to the device, the compression resistance and the pulling resistance of the pile foundation can be detected at the same time, compression resistance detection and pulling resistance detection are integrated, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, in particular to a pile foundation detection device. Background Art

[0002] Pile foundation is the most important load-bearing device in construction projects. Its quality is directly related to the safety and service life of the structure. Because pile foundations are mostly buried inside the ground, the inspection of pile foundations is roughly divided into pre-construction inspection and post-construction inspection, and professional inspection methods must be used to judge and evaluate the quality of pile foundations.

[0003] Chinese invention patent CN201710641648.0 discloses a pile foundation detection device and detection method, including a jack, a bearing frame, a self-drilling anchor, an anchor fixing machine and a pile foundation settlement meter. The self-drilling anchor is drilled into the ground by a drilling rig, the bearing frame is fixedly connected to the self-drilling anchor, the anchor fixing machine includes a refrigeration device, and the refrigeration device is used to freeze the soil layer around the self-drilling anchor. The base of the jack is above the test pile, and the top of the jack is below the bearing frame. The pile foundation settlement meter is used to measure the sinking data of the test pile.

[0004] However, the above-mentioned pile foundation detection device can only detect the sinking data of the pile foundation, and the device has a single functionality. If the pull-out performance test is to be performed, an additional pull-out device needs to be used, and the process is cumbersome. Utility Model Content

[0005] In view of this, the utility model provides a pile foundation detection device, the main technical problem to be solved is: being able to simultaneously detect the compression and pull-out properties of the pile foundation, integrating the compression and pull-out tests, and being easy to operate.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pile foundation detection device, including a ground, a detection component is arranged on the surface of the ground, the detection component includes a gantry, a hydraulic pump is fixedly connected to the top of the gantry, a hydraulic cylinder is fixedly connected to the top of the inner wall of the gantry, the hydraulic cylinder is connected to the hydraulic pump through the top of the gantry, a pressure plate is fixedly connected to the bottom of the hydraulic cylinder, a movable groove is provided on the top of the pressure plate, and the number of movable grooves is multiple, a telescopic groove is provided inside the pressure plate, and the number of telescopic grooves is two, and telescopic plates are installed inside the two telescopic grooves, and the top of the telescopic plate The top of the two connecting blocks is fixedly connected with a pulling plate, the outer wall of the pulling plate is fixedly connected with a spring, and the number of springs is two; the top of the pressure plate is fixedly connected with a fixing block, and the number of fixing blocks is two; the outer walls of the two fixing blocks are respectively fixedly connected to the other ends of the two springs; a pile foundation is installed inside the ground, and a clamping block is arranged outside the pile foundation, and the number of clamping blocks is two; slots are opened inside the two clamping blocks, and the two telescopic plates are respectively located inside the two slots, and the two clamping blocks are fixedly connected by multiple sets of bolts.

[0007] By adopting the above technical scheme, when the hydraulic pump is working, it drives the hydraulic cylinder to move downward, and then the pressure plate moves downward, exerting pressure on the top of the pile foundation, and then the sinking distance of the pile foundation is observed to judge the compressive capacity of the pile foundation, and then when the pull-out capacity test is performed, the two clamping blocks are moved close to each other until the two telescopic plates inside the pressure plate enter the slots opened inside the two clamping blocks respectively, and after the two clamping blocks clamp the pile foundation, the two clamping blocks are then clamped by multiple sets of bolts, at this time the pressure plate and the two clamping blocks are in a locked state, and then the hydraulic pump runs in the reverse direction, driving the hydraulic cylinder to move upward, and the pressure plate moves upward accordingly, and then driving the two clamping blocks to move slowly upward, so as to observe the upward movement distance of the pile foundation and judge the pull-out capacity of the pile foundation, so that the device realizes the two functions of compression and pull-out testing, making the device multifunctional, easy to operate, and saving time.

[0008] As a further description of the above technical solution:

[0009] The inner wall of the gantry is provided with a plurality of limit grooves.

[0010] By adopting the above technical solution, the upward movement process of the two clamping blocks is made smoother.

[0011] As a further description of the above technical solution:

[0012] Limiting blocks are installed inside the multiple limit grooves, the outer walls of two adjacent limit grooves are fixedly connected with a fixing plate, the outer wall of the fixing plate is fixedly connected with a sleeve, and there are two sleeves, the outer walls of the two clamping blocks are fixedly connected with a sleeve rod, and there are multiple sleeve rods, and the other ends of the multiple sleeve rods are respectively located inside the multiple sleeves.

[0013] By adopting the above technical solution, when the two clamping blocks need to achieve a clamping state, the two clamping blocks are pulled separately to make the two clamping blocks move relative to and away from each other, which facilitates the clamping and releasing operations of the two clamping blocks. At the same time, the two limit blocks drive the fixed plate to move, and the multiple sleeves connected to the outer wall of the fixed plate and the multiple sleeves connected to the outer walls of the two clamping blocks cooperate with each other. When performing pull-out resistance testing, the upward movement of the two clamping blocks is more stable during the upward movement of the pile foundation.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the gantry is fixedly connected with a U-shaped frame, and there are two U-shaped frames. The tops of the two U-shaped frames are fixedly connected with positioning columns, and there are multiple positioning columns. Counterweight blocks are installed inside the two U-shaped frames, and there are multiple counterweight blocks. The multiple counterweight blocks are respectively connected by multiple positioning columns.

[0016] By adopting the above technical solution, multiple counterweights are installed inside the two U-shaped frames, so that when the device is subjected to compression and pull-out tests, it is not necessary to fix the device to the ground with bolts, thus avoiding ground damage caused by bolt fixing.

[0017] As a further description of the above technical solution:

[0018] The outer walls of the two U-shaped frames are fixedly connected with support frames, and there are multiple support frames. The interiors of the multiple support frames are all threadedly connected with screw rods, and the bottoms of the screw rods are fixedly connected with support plates.

[0019] By adopting the above technical solution, when the ground is uneven, multiple screw rods are adjusted separately to make the entire device in a horizontal state, thereby ensuring the accuracy of the detection results.

[0020] As a further description of the above technical solution:

[0021] The outer wall of the gantry is provided with a plurality of hollow grooves.

[0022] By adopting the above technical solution, it is convenient to observe the displacement of the pile foundation through multiple hollow grooves when the pile foundation is subjected to compression and pull-out tests.

[0023] By means of the above technical solution, the pile foundation detection device of the utility model has at least the following beneficial effects:

[0024] 1. Compared with the prior art, the pile foundation detection device is characterized in that the hydraulic pump is fixedly connected to the top of the gantry. When the hydraulic pump is working, the hydraulic cylinder moves downward, driving the bottom pressure plate to move downward until it contacts the top of the pile foundation, and continues to apply downward force to the top of the pile foundation, observing the sinking state of the pile foundation, judging the compressive capacity of the pile foundation, and then pulling the two clamping blocks toward the middle respectively. When the two clamping blocks contact the outer walls of the pile foundation respectively, the two clamping blocks are locked by multiple sets of bolts, thereby clamping the pile foundation. At this time, the two telescopic plates inside the pressure plate are respectively located in the slots opened inside the two clamping blocks. At this time, the pressure plate is locked with the two clamping blocks respectively through the two telescopic plates, and then the hydraulic pump runs in the opposite direction, and the hydraulic cylinder drives the pressure plate to move up, with Move the two clamping blocks to apply up and down forces to the pile foundation, then observe the upper part of the pile foundation to determine the pull-out resistance of the pile foundation. After the test is completed, pull the two pull plates respectively to drive the two telescopic plates to move out of the slots inside the two clamping blocks respectively, and return to their original positions with the hydraulic pump. Then disassemble multiple groups of bolts to separate the two clamping blocks. The same device has both compression and pull-out resistance tests, and there is no need to replace the device for additional testing. It is easy to operate, saves time, and makes the device multifunctional. The existing device has a single function. If pull-out resistance performance test is to be performed, an anti-pull-out device must be used separately, and the process is cumbersome. This device can simultaneously test the compression and pull-out resistance of the pile foundation, integrate compression and pull-out resistance tests, and is easy to operate.

[0025] 2. Compared with the prior art, this pile foundation detection device has multiple limit grooves on the inner wall of the gantry, and limit blocks are installed inside the multiple limit grooves. When the two clamping blocks clamp the pile foundation and apply upward force through the hydraulic cylinder, the pile foundation will move up a short distance. Since the two clamping blocks are respectively connected to the two fixed plates through sleeves and sleeve rods, the fixed plates and limit blocks will be driven to move upward during the upward movement of the two clamping blocks, making the upward movement process smoother. By installing multiple counterweights inside the U-shaped frame on the outer wall of the gantry, there is no need to use bolts to fix the device to the ground, thereby avoiding ground damage caused by bolt fixing. By setting up multiple support frames, when the ground is not flat enough, multiple screws are adjusted separately until the device is in a horizontal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a pile foundation detection device proposed by the utility model from a first perspective;

[0027] Figure 2 A schematic diagram of the internal structure of a detection component of a pile foundation detection device proposed by the utility model;

[0028] Figure 3 A schematic diagram of the internal structure of a clamping block of a pile foundation detection device proposed by the utility model;

[0029] Figure 4 This is a schematic diagram of the internal structure of a pile foundation detection device proposed by the utility model;

[0030] Figure 5 A pile foundation detection device proposed by the utility model Figure 4 A magnified schematic diagram of the structure in the middle.

[0031] Legend:

[0032] 1. Ground; 2. Detection component; 201. Gantry; 202. Hydraulic pump; 203. Hydraulic cylinder; 204. Pressure plate; 205. Moving slot; 206. Telescopic slot; 207. Telescopic plate; 208. Connecting block; 209. Pull plate; 210. Spring; 211. Fixed block; 212. Clamping block; 213. Slot; 214. Bolt; 215. Pile foundation; 3. Limiting slot; 4. Limiting block; 5. Fixed plate; 6. Sleeve; 7. Sleeve rod; 8. U-shaped frame; 9. Positioning column; 10. Counterweight block; 11. Support frame; 12. Screw rod; 13. Support plate; 14. Hollow slot. DETAILED DESCRIPTION

[0033] Reference Figure 1-5The utility model provides a pile foundation detection device: comprising a ground 1, a detection component 2 is arranged on the surface of the ground 1, the detection component 2 comprises a gantry 201, a hydraulic pump 202 is fixedly connected to the top of the gantry 201, a hydraulic cylinder 203 is fixedly connected to the top of the inner wall of the gantry 201, the hydraulic cylinder 203 is connected to the hydraulic pump 202 through the top of the gantry 201, a pressing plate 204 is fixedly connected to the bottom of the hydraulic cylinder 203, a moving groove 205 is provided on the top of the pressing plate 204, and the number of the moving grooves 205 is multiple, and a telescopic groove 206 is provided inside the pressing plate 204, and the number of the telescopic grooves 206 is two, and the two telescopic grooves 206 are A telescopic plate 207 is installed inside the contraction groove 206, and a connecting block 208 is fixedly connected to the top of the telescopic plate 207, and the number of the connecting blocks 208 is two. A pull plate 209 is fixedly connected to the top of the two connecting blocks 208, and the outer wall of the pull plate 209 is fixedly connected to a spring 210, and the number of the springs 210 is two. A fixed block 211 is fixedly connected to the top of the pressure plate 204, and the number of the fixed blocks 211 is two. The outer walls of the two fixed blocks 211 are fixedly connected to the other ends of the two springs 210, respectively. A pile foundation 215 is installed inside the ground 1, and a clamping block 212 is arranged outside the pile foundation 215, and the clamping block 212 There are two of them, each of the two clamping blocks 212 has a slot 213, and the two telescopic plates 207 are respectively located in the two slots 213. The two clamping blocks 212 are fixedly connected by multiple sets of bolts 214. When the hydraulic pump 202 is working, it drives the hydraulic cylinder 203 to move downward, and then the pressure plate 204 moves downward, exerting pressure on the top of the pile foundation 215, and then observing the sinking distance of the pile foundation 215 to judge the compressive capacity of the pile foundation 215. When the pull-out capacity test is then performed, the two clamping blocks 212 are brought close to each other, and when the two telescopic plates 207 inside the pressure plate 204 enter the slots 213 inside the two clamping blocks 212 respectively, wait for the two After the clamping block 212 clamps the pile foundation 215, the two clamping blocks 212 are then clamped by multiple sets of bolts 214. At this time, the pressure plate 204 and the two clamping blocks 212 are in a locked state. Thereafter, the hydraulic pump 202 runs in reverse to drive the hydraulic cylinder 203 to move upward, and the pressure plate 204 moves upward accordingly, thereby driving the two clamping blocks 212 to move upward slowly, so as to observe the upward movement distance of the pile foundation 215 and judge the pull-out resistance of the pile foundation 215. After the inspection is completed, the two pull plates 209 are pulled to drive the two telescopic plates 207 to move out of the slots 213, and then the hydraulic cylinder 203 returns to its position, and then the multiple sets of bolts 214 are removed respectively to separate the two clamping blocks 212.

[0034] The inner wall of the gantry 201 is provided with a limit groove 3, and there are multiple limit grooves 3. Limit blocks 4 are installed inside the multiple limit grooves 3. The outer walls of two adjacent limit grooves 3 are fixedly connected with a fixing plate 5. The outer wall of the fixing plate 5 is fixedly connected with a sleeve 6, and there are two sleeves 6. The outer walls of the two clamping blocks 212 are fixedly connected with a sleeve rod 7, and there are multiple sleeve rods 7. The other ends of the multiple sleeve rods 7 are respectively located inside the multiple sleeves 6. When the two clamping blocks 212 clamp the pile foundation 215, the height position of the limit block 4 and the fixing plate 5 can be adjusted, and then the position of the two clamping blocks 212 can be adjusted horizontally, so that the two telescopic plates 207 inside the pressure plate 204 respectively enter the slots 213 in the two clamping blocks 212, so that the clamping position of the clamping block 212 can be adjusted according to the height of different pile foundations 215.

[0035] The outer wall of the gantry 201 is fixedly connected with a U-shaped frame 8, and there are two U-shaped frames 8. The tops of the two U-shaped frames 8 are fixedly connected with positioning columns 9, and there are multiple positioning columns 9. Counterweight blocks 10 are installed inside the two U-shaped frames 8, and there are multiple counterweight blocks 10. The multiple counterweight blocks 10 are respectively connected by multiple positioning columns 9. Different counterweight blocks 10 are added according to different pile foundations 215 to avoid damage to the ground 1 caused by directly fixing the device to the ground 1.

[0036] The outer walls of the two U-shaped frames 8 are fixedly connected to support frames 11, and there are multiple support frames 11. The interiors of the multiple support frames 11 are all threadedly connected to screw rods 12, and the bottoms of the screw rods 12 are fixedly connected to support plates 13. When the ground 1 is uneven, the multiple screw rods 12 are adjusted separately to keep the device in a horizontal state. The outer wall of the gantry 201 is provided with hollow grooves 14, and there are multiple hollow grooves 14. The displacement of the pile foundation 215 during pull-out and compression tests is observed through the multiple hollow grooves 14.

[0037] Working principle: When the hydraulic pump is working, it drives the hydraulic cylinder to move downward, and then the pressure plate moves downward, exerting pressure on the top of the pile foundation, and then observes the sinking distance of the pile foundation to judge the compressive capacity of the pile foundation. When the pull-out capacity test is then carried out, the two clamping blocks are brought close to each other, and the multiple limit blocks are adjusted at the same time to make the multiple limit blocks move in the multiple limit grooves respectively. When the two telescopic plates inside the pressure plate enter the slots inside the two clamping blocks respectively, after the two clamping blocks clamp the pile foundation, the two clamping blocks are then clamped by multiple sets of bolts. At this time, the pressure plate and the two clamping blocks are locked. state, and then the hydraulic pump runs in the reverse direction, driving the hydraulic cylinder to move up, and the pressure plate moves up accordingly, and then drives the two clamping blocks to move up slowly, so as to observe the upward movement distance of the pile foundation and judge the pull-out resistance of the pile foundation. After the test is completed, pull the two pull plates to drive the two telescopic plates to move out of the slots, and then the hydraulic cylinder returns to its position, and then remove multiple sets of bolts to separate the two clamping blocks. If the ground is uneven, fine-tune it through the screw rods inside the support frame that are fixedly connected to the outer walls of multiple support plates until the entire device is in a horizontal state to ensure the accuracy of the test results.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pile foundation detection device, comprising a ground surface (1), characterized in that: The surface of the ground (1) is provided with a detection component (2), the detection component (2) comprising a gantry (201), the top of the gantry (201) being fixedly connected to a hydraulic pump (202), the top of the inner wall of the gantry (201) being fixedly connected to a hydraulic cylinder (203), the hydraulic cylinder (203) being connected to the hydraulic pump (202) through the top of the gantry (201), the bottom of the hydraulic cylinder (203) being fixedly connected to a pressing plate (204), the top of the pressing plate (204) being provided with a movable groove (205), and the number of the movable grooves (205) being multiple, the inside of the pressing plate (204) being provided with a telescopic groove (206), and the number of the telescopic grooves (206) being two, the insides of the two telescopic grooves (206) being both provided with a telescopic plate (207), the top of the telescopic plate (207) being fixedly connected to a connecting block (208), and the connecting block (208) There are two of them, the tops of the two connecting blocks (208) are fixedly connected with a pull plate (209), the outer wall of the pull plate (209) is fixedly connected with a spring (210), and the number of the springs (210) is two, the top of the pressure plate (204) is fixedly connected with a fixed block (211), and the number of the fixed blocks (211) is two, the outer walls of the two fixed blocks (211) are respectively fixedly connected to the other ends of the two springs (210), a pile foundation (215) is installed inside the ground (1), a clamping block (212) is arranged outside the pile foundation (215), and the number of the clamping blocks (212) is two, a slot (213) is opened inside the two clamping blocks (212), the two telescopic plates (207) are respectively located inside the two slots (213), and the two clamping blocks (212) are fixedly connected by multiple groups of bolts (214).

2. A pile foundation detection device according to claim 1, characterized in that: The inner wall of the gantry (201) is provided with a limiting groove (3), and the limiting grooves (3) are multiple in number.

3. A pile foundation detection device according to claim 2, characterized in that: A limiting block (4) is installed inside each of the plurality of limiting grooves (3); the outer walls of two adjacent limiting grooves (3) are fixedly connected to a fixing plate (5); the outer wall of the fixing plate (5) is fixedly connected to a sleeve (6), and the number of the sleeves (6) is two; the outer walls of the two clamping blocks (212) are fixedly connected to a sleeve rod (7), and the number of the sleeve rods (7) is multiple; the other ends of the multiple sleeve rods (7) are respectively located inside the multiple sleeves (6).

4. A pile foundation detection device according to claim 1, characterized in that: The outer wall of the gantry (201) is fixedly connected to a U-shaped frame (8), and the number of the U-shaped frames (8) is two; the tops of the two U-shaped frames (8) are fixedly connected to positioning columns (9), and the number of the positioning columns (9) is multiple; counterweight blocks (10) are installed inside the two U-shaped frames (8), and the number of the counterweight blocks (10) is multiple, and the multiple counterweight blocks (10) are respectively connected through the multiple positioning columns (9).

5. A pile foundation detection device according to claim 4, characterized in that: The outer walls of the two U-shaped frames (8) are fixedly connected to support frames (11), and there are multiple support frames (11). The interiors of the multiple support frames (11) are all threadedly connected to screw rods (12), and the bottoms of the screw rods (12) are fixedly connected to support plates (13).

6. A pile foundation detection device according to claim 1, characterized in that: The outer wall of the gantry (201) is provided with a hollow groove (14), and the number of the hollow grooves (14) is multiple.

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