Pile foundation detection device for constructional engineering supervision

Abstract

The utility model relates to the technical field of building construction, and discloses a pile foundation detection device for constructional engineering supervision, which comprises a to-be-detected pile foundation and anchor piles arranged on two sides of the to-be-detected pile foundation, the top ends of the anchor piles are provided with steel bar columns, the top ends of the steel bar columns are provided with longitudinal steel channel beams, and the top ends of the longitudinal steel channel beams are welded with a high platform. And transverse I-shaped steel beams are welded at the top ends of the two high platforms. According to the static load test device, the hydraulic jack is used for supporting, the hydraulic jack is used for exerting counter-acting force on the pile foundation to be tested, and the purpose of conducting static load test detection on the pile foundation to be tested is achieved; and then the adjusting screw rod is rotated to drive the supporting block to move, the supporting rod is used for supporting the top plate, and the purpose of adjusting the levelness of the top plate is achieved, so that it is ensured that the acting force of the hydraulic jack can perpendicularly act on the to-be-tested pile foundation, and the accuracy of the static load test is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and more specifically to a pile foundation detection device for building engineering supervision. Background Art

[0002] When detecting a pile foundation, the static load test method is often used. The static load test refers to a test method in which vertical pressure, vertical uplift force or horizontal thrust is gradually applied to the top of the pile, and the settlement, uplift displacement or horizontal displacement of the top of the pile over time is observed to determine the corresponding vertical compressive bearing capacity of a single pile, vertical uplift bearing capacity of a single pile or horizontal bearing capacity of a single pile.

[0003] After retrieval, the existing patent (publication number: CN216664247U) discloses a pile foundation static load detection device. During its use, secondary beams are arranged on the main beam, anchor plates corresponding to the positions of anchor piles are placed on the secondary beams, the ends of the extension steel bars extend from both sides of the secondary beams to the anchor plates, and are locked and fixed to the anchor plates through anchor clamp pieces. Furthermore, the force applied by the jack will act on the pile foundation to be detected in a reaction manner, and the static load detection of the pile foundation to be detected is completed. The construction is convenient, the installation is easy, and the extension steel bars can be reused, saving time, labor and cost. However, the inventor found the following problems in the process of implementing the present utility model: For the above-mentioned pile foundation static load detection device, the jack is used to apply pressure downward on the pile foundation to achieve the purpose of static load detection of the pile foundation. However, when installing the jack, the upper end of the jack is fixedly connected to the main beam. During the installation process of the main beam, its levelness will be affected by the secondary beam and the anchor pile. When the bottom side of the main beam is in an inclined state, the jack will be in a skewed state during installation. At this time, when using the jack for jacking, the pile foundation is stressed obliquely, affecting the accuracy of the pile foundation static load detection.

[0004] In view of this, the present utility model proposes a pile foundation detection device for building engineering supervision to solve this problem. Content of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the present utility model provides a pile foundation detection device for building engineering supervision to solve the problems existing in the above background art.

[0006] The present utility model provides the following technical solution: A pile foundation detection device for building engineering supervision includes a pile foundation to be detected and anchor piles arranged on both sides of the pile foundation to be detected. Reinforcing steel columns are arranged at the tops of the anchor piles, longitudinal channel steel beams are arranged at the tops of the reinforcing steel columns, high platforms are welded at the tops of the longitudinal channel steel beams, a transverse I-shaped steel beam is welded at the tops of the two high platforms, a top plate is arranged at the bottom of the transverse I-shaped steel beam, a hydraulic jack is fixedly installed at the bottom of the top plate, the telescopic end of the hydraulic jack corresponds to the top of the pile foundation to be detected, and a horizontal adjustment component and a fixed connecting piece are arranged between the transverse I-shaped steel beam and the top plate;

[0007] The horizontal adjustment component includes a driving box fixedly installed at the bottom end of the horizontal I-shaped steel beam. A vertical shaft is rotatably connected to the bottom end of the driving box. A connecting plate is fixedly installed at the bottom end of the vertical shaft. The top plate is rotatably connected to the bottom end of the connecting plate, and an adjusting screw rod is rotatably connected to the bottom end of the connecting plate. A support block is threadedly connected to the surface of the adjusting screw rod. A support rod is rotatably connected to the surface of the support block, and the other end of the support rod is rotatably connected to the upper surface of the top plate.

[0008] Furthermore, the number of anchor piles is several. The several anchor piles are evenly divided into two groups, and the two groups of anchor piles are symmetrically distributed on both sides of the pile foundation to be measured; by setting several anchor piles, the tightness and firmness of the overall device with the ground can be improved.

[0009] Furthermore, through holes for the steel bar columns to pass through are formed on the surface of the longitudinal channel steel beam, and a locking nut is threadedly connected to the top end of the steel bar column. A backing plate is arranged between the locking nut and the longitudinal channel steel beam; by setting the locking nut and the backing plate, the longitudinal channel steel beam and the steel bar column are detachably installed, so as to facilitate subsequent disassembly for repeated use.

[0010] Furthermore, a support plate is welded on the surface of the longitudinal channel steel beam, and the support plate is located on the lower side of the longitudinal channel steel beam; by setting the support plate, before the hydraulic jack is installed, the longitudinal channel steel beam can be supported by the support plate, making the horizontal I-shaped steel beam suspended, which is convenient for the subsequent installation of the hydraulic jack.

[0011] Furthermore, the fixed connecting piece is a fixing plate welded to the side surface of the top plate. After adjusting the top plate to a horizontal state, an external welding machine is used to weld between the fixing plate and the horizontal I-shaped steel beam to position the top plate; by setting the fixing plate, after adjusting the top plate to a horizontal state, an external welding machine is used to weld between the fixing plate and the horizontal I-shaped steel beam to position the top plate, improving the structural stability of the top plate.

[0012] Furthermore, a pressure sensor is arranged between the telescopic end of the hydraulic jack and the top end of the pile foundation to be measured; by setting the pressure sensor, the pressure received by the pile foundation to be measured can be accurately measured, which is convenient for regulating the working state of the hydraulic jack.

[0013] Furthermore, a knob is rotatably connected to the surface of the driving box. The end of the knob extends into the driving box and is fixedly installed with a worm. A worm gear is fixedly installed inside the driving box on the vertical shaft. The worm is meshed with the worm gear; by setting the knob, when horizontally rotating the connecting plate, rotating the knob drives the worm to rotate. Based on the meshing of the worm and the worm gear, the vertical shaft can be driven to rotate, achieving the purpose of adjusting the angle of the top plate, and using the self-locking effect of the worm and the worm gear, the angle of the connecting plate can be ensured to be fixed when the hydraulic jack is installed subsequently.

[0014] Technical effects and advantages of the utility model:

[0015] 1. In the present utility model, by pre-burying the anchor piles, then using the steel column to limit and install the longitudinal channel steel beam, installing the transverse I-beam above the pile foundation to be tested, and then supporting it with a hydraulic jack, the reaction force exerted on the pile foundation to be tested by the hydraulic jack is utilized to achieve the purpose of conducting a static load test on the pile foundation to be tested. When installing the hydraulic jack on the surface of the top plate, through the horizontal adjustment assembly, the connecting plate is first rotated by the vertical shaft, and then the adjusting screw rod is rotated to drive the support block to move, and the top plate is supported by the support rod to achieve the purpose of adjusting the levelness of the top plate, so as to ensure that the acting force of the hydraulic jack can act vertically on the top of the pile foundation to be tested and ensure the accuracy of the static load test.

[0016] 2. In the present utility model, by setting the fixing plate, after adjusting the top plate to a horizontal state, the fixing plate and the transverse I-beam are welded by an external welding machine to position the top plate and improve the structural stability of the top plate; by setting a number of anchor piles, the tightness between the overall device and the ground can be improved; by setting the lock nut and the backing plate, the longitudinal channel steel beam and the steel column are detachably installed, which is convenient for subsequent disassembly and repeated use; by setting the support plate, before installing the hydraulic jack, the longitudinal channel steel beam can be supported by the support plate to make the transverse I-beam suspended, which is convenient for the subsequent installation of the hydraulic jack; by setting the pressure sensor, the pressure received by the pile foundation to be tested can be accurately measured, which is convenient for regulating the working state of the hydraulic jack; by setting the knob, when rotating the connecting plate horizontally, rotating the knob drives the worm to rotate. Based on the meshing of the worm and the worm wheel, the vertical shaft can be driven to rotate to achieve the purpose of adjusting the angle of the top plate, and the self-locking effect of the worm and the worm wheel can ensure the fixed angle of the connecting plate when installing the hydraulic jack subsequently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective one three-dimensional structure schematic diagram of the present utility model;

[0018] Figure 2 is a perspective two three-dimensional structure schematic diagram of the present utility model;

[0019] Figure 3 is Figure 2 the enlarged structure schematic diagram at A in

[0020] Figure 4 is Figure 2 the enlarged structure schematic diagram at B in

[0021] Figure 5 is the schematic diagram of the upward cross-section of the drive box.

[0022] The reference numerals are: 1, the pile foundation to be tested; 2, the anchor pile; 3, the steel column; 4, the longitudinal grooved steel beam; 5, the high platform; 6, the transverse I-shaped steel beam; 7, the top plate; 8, the hydraulic jack; 9, the driving box; 10, the vertical shaft; 11, the connecting plate; 12, the adjusting screw; 13, the supporting block; 14, the supporting rod; 15, the locking nut; 16, the backing plate; 17, the supporting plate; 18, the fixing plate; 19, the pressure sensor; 20, the knob; 21, the worm; 22, the worm gear. Detailed implementation mode

[0023] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. In addition, the forms of each structure described in the following implementation modes are merely examples. A pile foundation detection device for construction project supervision involved in the present invention is not limited to the structures described in the following implementation modes. All other implementation modes obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention.

[0024] Refer to Figures 1 to 5 , the present invention provides a pile foundation detection device for construction project supervision, including the pile foundation 1 to be tested and the anchor piles 2 arranged on both sides of the pile foundation 1 to be tested. A steel column 3 is provided at the top of the anchor pile 2, a longitudinal grooved steel beam 4 is provided at the top of the steel column 3, a high platform 5 is welded at the top of the longitudinal grooved steel beam 4, a transverse I-shaped steel beam 6 is welded at the top of the two high platforms 5, a top plate 7 is provided at the bottom of the transverse I-shaped steel beam 6, a hydraulic jack 8 is fixedly installed at the bottom of the top plate 7, and the telescopic end of the hydraulic jack 8 corresponds to the top of the pile foundation 1 to be tested.

[0025] When using this pile foundation detection device, the device is pre-connected to an external power system in advance. After the anchor piles 2 are embedded, the longitudinal grooved steel beam 4 is limited and installed by using the steel column 3, the transverse I-shaped steel beam 6 is installed above the pile foundation 1 to be tested, and then supported by the hydraulic jack 8. By using the reaction force exerted by the hydraulic jack 8 on the pile foundation 1 to be tested, the purpose of static load test detection of the pile foundation 1 to be tested is achieved.

[0026] Furthermore, a pressure sensor 19 is provided between the telescopic end of the hydraulic jack 8 and the top of the pile foundation 1 to be tested. By setting the pressure sensor 19, the pressure received by the pile foundation 1 to be tested can be accurately measured, which is convenient for the external hydraulic station to control the working state of the hydraulic jack 8.

[0027] A horizontal adjustment assembly and a fixed connection member are provided between the transverse I-shaped steel beam 6 and the top plate 7.

[0028] The horizontal adjustment assembly includes a drive box 9 fixedly installed at the bottom end of the horizontal I-beam 6. A vertical shaft 10 is rotatably connected to the bottom end of the drive box 9. A connecting plate 11 is fixedly installed at the bottom end of the vertical shaft 10. The top plate 7 is rotatably connected to the bottom end of the connecting plate 11. And a regulating screw 12 is rotatably connected to the bottom end of the connecting plate 11. A support block 13 is threadedly connected to the surface of the regulating screw 12. A support rod 14 is rotatably connected to the surface of the support block 13. The other end of the support rod 14 is rotatably connected to the upper surface of the top plate 7.

[0029] It should be noted that when installing the hydraulic jack 8 on the surface of the top plate 7, through the horizontal adjustment assembly, first rotate the connecting plate 11 by using the vertical shaft 10 according to the inclined direction in advance. Then drive the support block 13 to move by rotating the regulating screw 12, and support the top plate 7 by using the support rod 14 to achieve the purpose of adjusting the levelness of the top plate 7, so as to ensure that the acting force of the hydraulic jack 8 can act vertically on the top of the pile foundation 1 to be measured and ensure the accuracy of the static load test.

[0030] The fixed connecting piece is a fixing plate 18 welded to the side surface of the top plate 7. After adjusting the top plate 7 to a horizontal state, use an external welding machine to weld between the fixing plate 18 and the horizontal I-beam 6 to position the top plate 7.

[0031] It should be noted that by setting the fixing plate 18, after adjusting the top plate 7 to a horizontal state, use an external welding machine to weld between the fixing plate 18 and the horizontal I-beam 6 to position the top plate 7 and improve the structural stability of the top plate 7.

[0032] The number of anchor piles 2 is several. The several anchor piles 2 are evenly divided into two groups. The two groups of anchor piles 2 are symmetrically distributed on both sides of the pile foundation 1 to be measured.

[0033] It should be noted that by setting several anchor piles 2, the stress on a single anchor pile 2 can be reduced, and the tightness and firmness of the overall device with the ground can be improved.

[0034] A through hole for the steel bar column 3 to pass through is formed on the surface of the longitudinal channel steel beam 4. And a locking nut 15 is threadedly connected to the top end of the steel bar column 3. A backing plate 16 is arranged between the locking nut 15 and the longitudinal channel steel beam 4.

[0035] It should be noted that by setting the locking nut 15 and the backing plate 16, the longitudinal channel steel beam 4 and the steel bar column 3 are detachably installed, so as to facilitate subsequent disassembly for repeated use.

[0036] A support plate 17 is welded to the surface of the longitudinal channel steel beam 4. The support plate 17 is located below the longitudinal channel steel beam 4.

[0037] It should be noted that by setting the support plate 17, before the installation of the hydraulic jack 8, the longitudinal channel steel beam 4 can be supported by the support plate 17, making the transverse I-beam 6 suspended, which is convenient for the subsequent installation of the hydraulic jack 8.

[0038] A knob 20 is rotatably connected to the surface of the drive box 9. The end of the knob 20 extends into the drive box 9 and is fixedly installed with a worm 21. A worm gear 22 is fixedly installed inside the drive box 9 on the vertical shaft 10. The worm 21 meshes with the worm gear 22.

[0039] It should be noted that by setting the knob 20, when the connection plate 11 is rotated horizontally, rotating the knob 20 drives the worm 21 to rotate. Based on the meshing of the worm 21 and the worm gear 22, the vertical shaft 10 can be driven to rotate, achieving the purpose of adjusting the angle of the top plate 7. Moreover, by using the self-locking effect of the worm 21 and the worm gear 22, the angle of the connection plate 11 can be ensured to be fixed when the hydraulic jack 8 is installed subsequently.

[0040] Finally, it should be noted that in the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other.

Claims

1. A pile foundation detection device for construction engineering supervision, comprising a pile foundation to be detected (1) and anchor piles (2) arranged on both sides of the pile foundation to be detected (1), characterized in that: The top of the anchor pile (2) is provided with a steel bar column (3), the top of the steel bar column (3) is provided with a longitudinal channel steel beam (4), the top of the longitudinal channel steel beam (4) is welded with a platform (5), the tops of the two platforms (5) are welded with transverse I-beams (6), the bottom of the transverse I-beams (6) is provided with a top plate (7), the bottom of the top plate (7) is fixedly mounted with a hydraulic jack (8), the telescopic end of the hydraulic jack (8) corresponds to the top position of the pile foundation (1) to be tested, and a horizontal adjustment component and a fixed connection piece are provided between the transverse I-beam (6) and the top plate (7); The horizontal adjustment assembly comprises a drive box (9) fixedly mounted on the bottom end of the transverse I-beam (6); the bottom end of the drive box (9) is rotatably connected to a vertical shaft (10); the bottom end of the vertical shaft (10) is fixedly mounted with a connecting plate (11); the top plate (7) is rotatably connected to the bottom end of the connecting plate (11); the bottom end of the connecting plate (11) is rotatably connected to an adjusting screw (12); a support block (13) is threadedly connected to the surface of the adjusting screw (12); a support rod (14) is rotatably connected to the surface of the support block (13); the other end of the support rod (14) is rotatably connected to the upper surface of the top plate (7).

2. A pile foundation detection device for construction engineering supervision according to claim 1, characterized in that: The number of the anchor piles (2) is a plurality, and the plurality of anchor piles (2) are divided into two groups, and the two groups of anchor piles (2) are symmetrically distributed on both sides of the pile foundation (1) to be tested.

3. A pile foundation detection device for construction engineering supervision according to claim 1, characterized in that: A through hole for the steel bar column (3) to pass through is provided on the surface of the longitudinal channel steel beam (4), and a locking nut (15) is threadedly connected to the top end of the steel bar column (3), and a pad (16) is provided between the locking nut (15) and the longitudinal channel steel beam (4).

4. A pile foundation detection device for construction engineering supervision according to claim 1, characterized in that: A support plate (17) is welded to the surface of the longitudinal channel steel beam (4), and the support plate (17) is located on the lower side of the longitudinal channel steel beam (4).

5. A pile foundation detection device for construction engineering supervision according to claim 1, characterized in that: The fixed connection member is a fixed plate (18) welded to the side of the top plate (7). When the top plate (7) is adjusted to a horizontal state, an external welding machine is used to weld the fixed plate (18) and the transverse I-beam (6) to position the top plate (7).

6. A pile foundation detection device for construction engineering supervision according to claim 1, characterized in that: A pressure sensor (19) is provided between the telescopic end of the hydraulic jack (8) and the top of the pile foundation (1) to be tested.

7. A pile foundation detection device for construction engineering supervision according to claim 1, characterized in that: A knob (20) is rotatably connected to the surface of the driving box (9), an end of the knob (20) extends into the interior of the driving box (9) and is fixedly mounted with a worm (21), a worm wheel (22) is fixedly mounted on the vertical shaft (10) inside the driving box (9), and the worm (21) is meshed with the worm wheel (22).

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