Pile foundation static load detection device

Abstract

The utility model relates to the technical field of civil engineering testing, in particular to a pile foundation static load detection device. According to the pile foundation static load detection device, in the pile foundation static load detection process, the first pressure bearing plate is kept parallel to the pile foundation, the pile foundation is prevented from being stressed unevenly, and the pile foundation static load detection accuracy is improved. A pile foundation static load detection device comprises a pile foundation, a first bearing plate, a jack, a second bearing plate and the like, the first bearing plate is placed on the upper side of the pile foundation, the jack is placed on the upper side of the first bearing plate, and the second bearing plate is placed on the upper side of the jack. The double-end motor is started to enable the screw rod to rotate, the guide sleeves move to be close to each other under the action of threads, and the clamping jaws are driven to be close to each other to be clamped on the pile foundation, so that the first pressure bearing plate is kept parallel to the pile foundation in the static load detection process of the pile foundation, and the pile foundation is prevented from being stressed unevenly; and the pile foundation static load detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering testing, in particular to a pile foundation static load detection device. Background Art

[0002] In the field of civil engineering, pile foundation is an important component of the building foundation. Its bearing capacity and stability are directly related to the safety and long-term service life of the entire structure. In order to ensure that the design and construction of the pile foundation meet the requirements of the specifications, static load testing of the pile foundation is an indispensable part.

[0003] The existing static load detection of pile foundations usually involves setting a load-bearing platform on the top of the pile and piling weights to apply the load, or using a reaction device such as a jack to perform static load detection on the pile foundation through the reaction force of the load-bearing platform. However, when the load is applied to the pile foundation through the load-bearing platform, the load-bearing platform and the pile foundation may not be able to remain parallel, resulting in uneven force on the pile foundation, which affects the accuracy of the static load detection of the pile foundation.

[0004] Therefore, a pile foundation static load detection device is now developed, which can keep the first pressure plate parallel to the pile foundation during the pile foundation static load detection process, prevent the pile foundation from being subjected to uneven force, and improve the accuracy of pile foundation static load detection. Utility Model Content

[0005] In order to overcome the shortcomings of the existing pile foundation static load detection, when the load is applied to the pile foundation through the load-bearing platform, the load-bearing platform and the pile foundation may not be able to remain parallel, resulting in uneven force on the pile foundation and affecting the accuracy of the pile foundation static load detection, the utility model provides a pile foundation static load detection device which can keep the first pressure plate parallel to the pile foundation during the pile foundation static load detection, prevent the pile foundation from being unevenly stressed, and improve the accuracy of the pile foundation static load detection.

[0006] The technical implementation scheme of the utility model is: a pile foundation static load detection device, including a pile foundation, a first pressure-bearing plate, a jack, a second pressure-bearing plate, a support seat and a clamping mechanism, the first pressure-bearing plate is placed on the upper side of the pile foundation, the jack is placed on the upper side of the first pressure-bearing plate, the second pressure-bearing plate is placed on the upper side of the jack, support seats are placed on the front and rear sides of the pile foundation, the support seats are slidably connected to the first pressure-bearing plate, and the first pressure-bearing plate is provided with a clamping mechanism that can clamp the pile foundation.

[0007] Optionally, a support plate is provided on the lower side of the support seat.

[0008] Optionally, a level measuring instrument is also included, and the upper part of the support seat is connected to the level measuring instrument.

[0009] Optionally, the clamping mechanism includes a clamping claw, a guide sleeve, a screw rod, a double-headed motor and a connecting block. The front and rear sides of the right part of the first pressure plate are connected to the connecting blocks, the lower side of the right part of the first pressure plate is connected to the double-headed motor, the front and rear output shafts of the double-headed motor are connected to screw rods, the screw rods are rotatably connected to adjacent connecting blocks, the guide sleeve is threadedly connected to the screw rod, and the clamping claw is connected to the lower side of the guide sleeve.

[0010] Optionally, a bearing mechanism is also included, which includes a bearing platform, a limit frame, a latch and a bottom plate. The bearing platform is placed on the upper side of the second pressure plate, and the left and right sides of the bearing platform are connected to the limit frame by latches, and the bottom side of the limit frame is connected to the bottom plate.

[0011] Optionally, a plurality of snap-in holes are provided on the limiting frame.

[0012] Compared with the prior art, the utility model has the following advantages: 1. The utility model starts the double-headed motor to rotate the screw rod, and under the action of the thread, the guide sleeves move closer to each other, driving the clamping claws to move closer to each other and clamp on the pile foundation, thereby achieving the effect of keeping the first pressure plate parallel to the pile foundation during the static load detection of the pile foundation, preventing uneven force on the pile foundation, and improving the accuracy of the static load detection of the pile foundation.

[0013] 2. The utility model divides the weight evenly and places it on the bottom plates on both sides, so that the load is transmitted to the limit frame through the first bottom plate and then to the bearing platform, thereby achieving the effect of being able to easily apply load to the second bearing platform, simplifying the pile foundation static load detection process and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping mechanism of the utility model.

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the carrying mechanism of the utility model.

[0018] The meanings of the reference numerals in the figure are as follows: 1: pile foundation, 2: first pressure plate, 3: jack, 4: second pressure plate, 5: level measuring instrument, 6: support seat, 7: clamping mechanism, 71: clamping claw, 72: guide sleeve, 73: screw rod, 74: double-headed motor, 75: connecting block, 8: bearing mechanism, 81: bearing platform, 82: limit frame, 83: latch, 84: bottom plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0020] A pile foundation static load detection device, such as Figure 1 and Figure 2 As shown, it includes a pile foundation 1, a first pressure plate 2, a jack 3, a second pressure plate 4, a level meter 5, a support seat 6 and a clamping mechanism 7. The first pressure plate 2 is placed on the upper side of the pile foundation 1, the jack 3 is placed on the upper side of the first pressure plate 2, the second pressure plate 4 is placed on the upper side of the jack 3, the upper part of the support seat 6 is connected to the level meter 5, the support seats 6 are placed on the front and rear sides of the pile foundation 1, and the lower side of the support seats 6 is provided with support plates to expand the contact area between the support frame and the ground to facilitate supporting the first pressure plate 2, the support seats 6 are slidably connected to the first pressure plate 2, and the first pressure plate 2 is provided with a clamping mechanism 7.

[0021] like Figure 1 and Figure 3 As shown, the clamping mechanism 7 includes a clamping claw 71, a guide sleeve 72, a screw rod 73, a double-headed motor 74 and a connecting block 75. The connecting blocks 75 are connected to the front and rear sides of the right part of the first pressure plate 2, and the lower side of the right part of the first pressure plate 2 is connected to the double-headed motor 74. The front and rear output shafts of the double-headed motor 74 are connected to screw rods 73, and the screw rods 73 are rotatably connected to the adjacent connecting blocks 75. The guide sleeve 72 is threadedly connected to the screw rod 73, and the lower side of the guide sleeve 72 is connected to the clamping claw 71.

[0022] When using the utility model, first move the device to the vicinity of the pile foundation 1 to be tested, then place the first pressure plate 2 on the pile foundation 1, then place the jack 3 on the first pressure plate 2, and then place the second pressure plate 4 on the jack 3, then adjust the level of the first pressure plate 2 by the level measuring instrument 5 on the support seat 6, then apply a specified load to the second pressure plate 4, and then apply a reaction force to the first pressure plate 2 by the jack 3, and then evenly transfer the load to the pile foundation 1, so as to perform a static load test on the pile foundation 1, and then pass When the first pressure plate 2 applies load to the pile foundation 1, the double-headed motor 74 is started to rotate the screw rod 73, and the guide sleeve 72 is moved closer to each other under the action of the thread, driving the clamping jaws 71 to approach each other and clamp on the pile foundation 1, and the first pressure plate 2 is supported by the clamping jaws 71, so that the first pressure plate 2 always remains parallel to the pile foundation 1 during the detection process, thereby playing a role in keeping the first pressure plate 2 parallel to the pile foundation 1 during the static load detection of the pile foundation 1, preventing the pile foundation 1 from being subjected to uneven force, and improving the accuracy of the static load detection of the pile foundation 1.

[0023] like Figure 1 and Figure 4 As shown, it also includes a bearing mechanism 8, which includes a bearing platform 81, a limit frame 82, a latch 83 and a bottom plate 84. The bearing platform 81 is placed on the upper side of the second pressure plate 4. The left and right sides of the bearing platform 81 are clamped with the limit frame 82 through the latch 83. The limit frame 82 is provided with five clamping holes to facilitate the adjustment of the height of the limit frame 82. The lower side of the limit frame 82 is connected to the bottom plate 84.

[0024] The bearing mechanism 8 of the present device can be used to facilitate the application of load to the second pressure plate 4. When it is necessary to apply load to the first pressure plate 2, the position of the limit frame 82 on the bearing platform 81 is adjusted by the pin 83, so that the bottom plate 84 is suspended in the air and at a convenient height. The heavy object is evenly divided and placed on the bottom plates 84 on both sides, so that the load is transmitted to the limit frame 82 through the bottom plate 84, and then to the bearing platform 81, and then to the second bearing platform 81 through the bearing platform 81, thereby facilitating the application of load to the second bearing platform 81, simplifying the static load detection process of the pile foundation 1, and improving the detection efficiency.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pile foundation static load detection device, characterized in that: The invention comprises a pile foundation (1), a first pressure-bearing plate (2), a jack (3), a second pressure-bearing plate (4), a support seat (6) and a clamping mechanism (7); the first pressure-bearing plate (2) is placed on the upper side of the pile foundation (1); the jack (3) is placed on the upper side of the first pressure-bearing plate (2); the second pressure-bearing plate (4) is placed on the upper side of the jack (3); support seats (6) are placed on both the front and rear sides of the pile foundation (1); the support seats (6) are slidably connected to the first pressure-bearing plate (2); and the first pressure-bearing plate (2) is provided with a clamping mechanism (7) capable of clamping the pile foundation (1).

2. A pile foundation static load detection device according to claim 1, characterized in that: The lower side of the support seat (6) is provided with a support plate.

3. A pile foundation static load detection device according to claim 1, characterized in that: It also includes a level measuring instrument (5), and the upper part of the support seat (6) is connected to the level measuring instrument (5).

4. A pile foundation static load detection device according to claim 1, characterized in that: The clamping mechanism (7) comprises a clamping claw (71), a guide sleeve (72), a screw rod (73), a double-headed motor (74) and a connecting block (75); the front and rear sides of the right part of the first pressure plate (2) are connected to the connecting block (75); the lower side of the right part of the first pressure plate (2) is connected to the double-headed motor (74); the front and rear output shafts of the double-headed motor (74) are connected to the screw rod (73); the screw rod (73) is rotatably connected to the adjacent connecting block (75); the guide sleeve (72) is threadedly connected to the screw rod (73); and the lower side of the guide sleeve (72) is connected to the clamping claw (71).

5. A pile foundation static load detection device according to claim 4, characterized in that: The bearing mechanism (8) further comprises a bearing platform (81), a limiting frame (82), a latch (83) and a bottom plate (84); the bearing platform (81) is placed on the upper side of the second pressure bearing plate (4); the left and right sides of the bearing platform (81) are connected to the limiting frame (82) via the latch (83); and the bottom plate (84) is connected to the lower side of the limiting frame (82).

6. A pile foundation static load detection device according to claim 5, characterized in that: The limiting frame (82) is provided with a plurality of clamping holes.

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