Extension type displacement measurement platform for foundation pile static load detection

Abstract

The utility model relates to an extension type displacement measurement platform for foundation pile static load detection, and belongs to the field of foundation pile static load detection, the extension type displacement measurement platform comprises a meter supporting table, a telescopic rod, an insertion rod and a fixing assembly, the lower end of the telescopic rod is fixedly connected with the insertion rod through the fixing assembly, and the angle between the lower end of the telescopic rod and the insertion rod can be adjusted; the meter supporting table is hinged to the upper end of the telescopic rod, and a fixing piece for fixing the meter supporting table to the telescopic rod is arranged at the hinged position of the telescopic rod. The displacement meter has the advantage that the displacement meter is convenient to erect on the premise of ensuring the detection precision.

Description

Technical Field

[0001] This application relates to the field of static load testing of foundation piles, and in particular to an extended displacement measurement platform for static load testing of foundation piles. Background Technology

[0002] In traditional static load tests of foundation piles, a displacement measurement platform needs to be set up at a certain position above the pile top to install displacement gauges and measure the pile displacement under various load levels. The main drawbacks include: 1. The displacement measurement platform in traditional tests is relatively low, generally 5cm-15cm from the bottom of the test pit. In most tests, there is a certain water level in the test pit. During the test, as pressure is applied to the pile or due to environmental factors such as surface water and groundwater, the water level may rise to the displacement measurement platform, affecting the test; 2. Relevant regulations require the displacement gauge to be installed vertically on the displacement observation platform. In actual on-site tests, the displacement measurement platform is generally constructed by welding two steel bars to a square iron plate, with two parallel holes drilled in the pile body. Afterwards, reinforcing bars are inserted into the holes to form a measuring platform perpendicular to the pile body. However, due to inaccurate drilling by on-site workers, the displacement measuring platform cannot be kept horizontal and often tilts. Furthermore, the platform is a single iron plate, making it difficult to control the vertical installation of the displacement gauges. 3. In the static load test, a reference beam needs to be erected. The main function of the reference beam is to support the displacement gauges and observe the pile displacement. However, due to the limited size of the pile displacement observation platform and the inability to precisely control the horizontal and vertical distance between the reference beam and the displacement observation platform in actual engineering, a steel pipe needs to be vertically fixed in the beam to facilitate the gauge mounting. Therefore, adding a steel pipe to the beam increases the stress on the reference beam. Moreover, because the added steel pipe is vertical, it may cause the erected displacement gauges to fall off, affecting the test. Therefore, improvements are needed. Utility Model Content

[0003] In order to facilitate the installation of displacement gauges while ensuring detection accuracy, this application provides an extended displacement measurement platform for static load testing of foundation piles.

[0004] The technical solution of the extended displacement measurement platform for static load testing of foundation piles provided in this application is as follows: An extended displacement measurement platform for static load testing of foundation piles includes a table, a telescopic rod, an insertion rod, and a fixing component. The lower end of the telescopic rod is fixedly connected to the insertion rod through the fixing component and the angle between the telescopic rod and the insertion rod can be adjusted. The table is hinged to the upper end of the telescopic rod, and a fixing component is provided at the hinge of the telescopic rod to fix the table on the telescopic rod.

[0005] By adopting the above technical solution, the height of the meter stand can be adjusted by the telescopic rod, and the angle of the telescopic rod can be adjusted and fixed by the fixing component, so as to facilitate the installation of the displacement meter stand close to the reference beam. In addition, by adjusting the level of the meter stand hinged to the upper end of the telescopic rod and fixing the meter stand with the fastener, the accuracy of the displacement meter measurement is guaranteed.

[0006] Preferably, the telescopic rod includes multiple steel pipes that are sequentially and movably inserted. Multiple corresponding insertion holes are provided between two adjacent steel pipes along the length direction. Two adjacent steel pipes are fixed by inserting a fixing rod into the corresponding insertion hole to fix the two adjacent steel pipes.

[0007] By adopting the above technical solution, the length between two adjacent steel pipes is adjusted, and then a fixing rod is inserted into the corresponding hole between the two adjacent steel pipes for fixation, thereby facilitating the adjustment of the length of the telescopic rod.

[0008] Preferably, a horizontal bubble meter is provided on the upper surface of the table stand.

[0009] By adopting the above technical solution, the levelness of the meter stand can be easily observed using a level bubble meter, thereby improving the accuracy of displacement meter measurements.

[0010] Preferably, two horizontal bubblers are provided, and the two horizontal bubblers are perpendicular to each other.

[0011] By adopting the above technical solution, the levelness of the adjustment frame platform can be further observed through two vertically set horizontal bubble meters, thereby further improving the measurement accuracy of the displacement meter.

[0012] Preferably, the upper surface of the table stand is provided with grid lines.

[0013] By adopting the above technical solution, the verticality of the displacement meter frame is improved by using grid lines, thereby improving the measurement accuracy of the displacement meter.

[0014] Preferably, a safety rope is provided on the lower surface of the meter stand, and the other end of the safety rope is connected to the displacement meter base.

[0015] By adopting the above technical solution, the displacement gauge is protected by a safety rope. When the displacement gauge falls from the gauge stand, the safety rope can prevent it from falling into the water in the test pit.

[0016] Preferably, the lower surface of the table stand is provided with a spherical joint, the upper end of the telescopic rod is hinged through the spherical joint, the fixing member is a locking screw, and the locking screw is threadedly connected to the upper end of the telescopic rod to abut against the surface of the spherical joint.

[0017] By adopting the above technical solution, after adjusting the table stand through the ball joint, the ball joint is then fixed by the locking screw, thereby fixing the table stand to the upper end of the telescopic rod.

[0018] Preferably, the fixing assembly includes a connecting plate, a rotating shaft, and a locking component. The insertion rod is fixedly connected to the connecting plate. The side wall of the connecting plate has an installation hole and an arc adjustment hole. The rotating shaft is rotatably connected to the telescopic rod through the installation hole. The locking component is threadedly connected to the telescopic rod through the arc adjustment hole.

[0019] By adopting the above technical solution, the lower end of the telescopic rod rotates through a pivot, and the angle between the telescopic rod and the connecting plate is adjusted through an arc-shaped adjustment hole. Then, the telescopic rod and the connecting plate are fixed together by a locking device, thereby completing the angle adjustment of the telescopic rod.

[0020] Preferably, two connecting plates are provided, and a reinforcing plate is fixedly connected between the two connecting plates. Three insertion rods are provided, two of which are fixed to the two connecting plates respectively, and the other insertion rod is fixed to the reinforcing plate. The three insertion rods are arranged in a triangular distribution, and the two connecting plates are located on opposite side walls of the telescopic rod.

[0021] By adopting the above technical solution, the two connecting plates are reinforced by a reinforcing plate, thereby improving the stability of the connection with the telescopic rod. The three insert rods arranged in a triangular distribution improve the stability of the insert rods inserted into the pile body, thereby improving the stability of the measuring platform and improving the measurement accuracy.

[0022] Preferably, the insert rod fixedly mounted on the connecting plate extends outward and is hinged at one end to a reinforcing rod, the other end of which is fixedly mounted on the telescopic rod.

[0023] By adopting the above technical solution, the telescopic rod is reinforced by a reinforcing rod hinged to the end of the insertion rod and then fixed to the telescopic rod, thereby reducing the occurrence of telescopic rod swaying and improving the measurement accuracy of the measurement platform.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] The height of the meter stand can be adjusted by the telescopic rod, and the angle of the telescopic rod can be adjusted and fixed by the fixing component, so that the meter stand can be placed close to the reference beam for setting up the displacement meter. In addition, by adjusting the level of the meter stand hinged to the upper end of the telescopic rod and fixing the meter stand with the fastener, the accuracy of the displacement meter measurement can be guaranteed. Attached Figure Description

[0026] Figure 1 This is a front view of the displacement measurement platform in the embodiments of this application.

[0027] Figure 2 This is a schematic diagram of the connection structure of the connecting plate, the insert rod, and the reinforcing plate in an embodiment of this application.

[0028] Figure 3 This is a top view of the table stand in the embodiment of this application.

[0029] Explanation of reference numerals in the attached diagram: 1. Table stand; 11. Level bubble meter; 12. Grid line; 13. Safety rope; 2. Telescopic rod; 21. Steel pipe; 22. Insertion hole; 23. Fixing rod; 24. Ball joint; 25. Locking screw; 3. Insert rod; 4. Fixing component; 41. Connecting plate; 411. Mounting hole; 412. Arc adjustment hole; 42. Rotating shaft; 43. Locking element; 44. Reinforcing plate; 45. Reinforcing rod; 5. Pile body; 6. Reference beam; 7. Displacement gauge. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0031] This application discloses an extended displacement measurement platform for static load testing of foundation piles. (Refer to...) Figure 1 The displacement measurement platform includes a gauge stand 1, a telescopic rod 2, an insertion rod 3, and a fixing assembly 4. The lower end of the telescopic rod 2 is fixedly connected to the insertion rod 3 via the fixing assembly 4, and the angle between them can be adjusted. The insertion rod 3 is used to insert into the pile body 5, and holes are drilled in the side wall of the pile body 5 for the insertion rod 3 to be inserted. The gauge stand 1 is hinged to the upper end of the telescopic rod 2, and a fixing component is provided at the hinge point of the telescopic rod 2 to fix the gauge stand 1 to the telescopic rod 2. Compared with the existing method that requires an additional vertical gauge stand tube to be installed on the reference beam 6, this solution adjusts the length and angle of the telescopic rod 2 to be closer to the reference beam 6, and directly installs the displacement gauge 7 on the reference beam 6, reducing the need for an additional gauge stand tube in the middle of the reference beam 6. In addition, by adjusting the levelness of the gauge stand 1 hinged to the upper end of the telescopic rod 2 and fixing the gauge stand 1 with the fixing component, the accuracy of the displacement gauge 7 measurement is ensured.

[0032] Specifically, the telescopic rod 2 includes multiple steel pipes 21 that are sequentially and movably inserted. Multiple corresponding insertion holes 22 are spaced apart along the length of adjacent steel pipes 21. Adjacent steel pipes 21 are fixed by being inserted into the corresponding insertion holes 22 via a fixing rod 23. The telescopic rod 2 in this application consists of three steel pipes 21 of different diameters.

[0033] The fixing component 4 includes a connecting plate 41, a rotating shaft 42, and a locking member 43. The insertion rod 3 is welded and fixed to the connecting plate 41. The side wall of the connecting plate 41 is provided with mounting holes 411 and arc-shaped adjustment holes 412 spaced apart. The rotating shaft 42 is rotatably connected to the telescopic rod 2 through the mounting holes 411. The locking member 43 is threaded into the preset hole of the telescopic rod 2 through the arc-shaped adjustment hole 412. In this embodiment, the locking member 43 is a wing screw. The lower end of the telescopic rod 2 rotates through the rotating shaft 42, and at the same time, the angle between the telescopic rod 2 and the connecting plate 41 is adjusted through the arc-shaped adjustment hole 412. Then, the locking member 43 fixes the telescopic rod 2 and the connecting plate 41 together, thereby completing the angle adjustment of the telescopic rod 2.

[0034] Reference Figure 1 and Figure 2 Furthermore, two connecting plates 41 are provided, and a reinforcing plate 44 is welded and fixed between the two connecting plates 41. Three insertion rods 3 are provided, with two insertion rods 3 welded and fixed to the two connecting plates 41 respectively, and the third insertion rod 3 welded and fixed to the reinforcing plate 44. The three insertion rods 3 are arranged in a triangular distribution, and the two connecting plates 41 are located on opposite side walls of the telescopic pole 2. The two connecting plates 41 are reinforced by the reinforcing plate 44, thereby improving the stability of the connection with the telescopic pole 2. The triangular distribution of the three insertion rods 3 improves the stability of the insertion rods 3 inserted into the pile body 5, thereby improving the stability of the measuring platform and improving the measurement accuracy.

[0035] Reference Figure 1 To further improve the stability of the telescopic rod 2, the insert rod 3, which is fixedly mounted on the connecting plate 41, extends outward and is hinged at its end to a reinforcing rod 45. The other end of the reinforcing rod 45 is fixed to the telescopic rod 2. Specifically, the end of the reinforcing rod 45 is fixed by bolts through the insertion hole 22 of the steel pipe 21 located in the middle of the telescopic rod 2. By using the reinforcing rod 45 hinged to the end of the insert rod 3 and then fixed to the telescopic rod 2, the telescopic rod 2 is reinforced, reducing the occurrence of swaying and improving the measurement accuracy of the measuring platform.

[0036] A spherical joint 24 is welded to the lower surface of the meter stand 1. The upper end of the telescopic rod 2 is hinged to the spherical joint 24. In this embodiment, the fixing component is a locking screw 25, which is threaded onto the upper end of the telescopic rod 2 to abut against the surface of the spherical joint 24. The spherical joint 24 facilitates the levelness of the meter stand 1, and the locking screw 25 then abuts against and fixes the spherical joint 24.

[0037] Reference Figure 3A horizontal bubble level 11 is installed on the upper surface of the meter stand 1. Two horizontal bubble levels 11 are provided in this application, and the two horizontal bubble levels 11 are perpendicular to each other. Since the telescopic rod 2 is fixed to the pile body 5 by the insertion rod 3, there is a lateral offset. Therefore, the two vertically installed horizontal bubble levels 11 can further observe and adjust the levelness of the meter stand 1, thereby further improving the measurement accuracy of the displacement gauge 7.

[0038] Reference Figure 1 and Figure 3 Furthermore, a grid line 12 is provided on the upper surface of the meter stand 1. The grid line 12 improves the verticality of the displacement meter 7, thereby improving the measurement accuracy of the displacement meter 7. A safety rope 13 is provided on the lower surface of the meter stand 1, with the other end of the safety rope 13 fastened to the frame of the displacement meter 7. The displacement meter 7 is protected by the safety rope 13, which prevents it from falling into the water in the test pit if it falls from the meter stand 1.

[0039] The implementation principle of the extended displacement measurement platform for static load testing of foundation piles in this application embodiment is as follows: The height of the table stand 1 can be adjusted by the telescopic rod 2, and the angle of the fixed telescopic rod 2 can be adjusted by the fixing component 4, so that the table stand 1 can be close to the reference beam 6 for the installation of the displacement meter 7. Compared with the existing method that requires an additional vertical table stand tube to be installed on the reference beam 6, this solution directly installs the displacement meter 7 on the reference beam 6 by adjusting the length and angle of the telescopic rod 2, which reduces the need to add a table stand tube in the middle of the reference beam 6 and reduces the risk of the displacement meter 7 falling. In addition, by adjusting the level of the table stand 1 hinged to the upper end of the telescopic rod 2 and fixing the table stand 1 with the fixing component, the accuracy of the displacement meter 7 measurement is ensured.

[0040] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An extended displacement measurement platform for static load testing of foundation piles, characterized in that: The device includes a table stand (1), a telescopic rod (2), a plug rod (3), and a fixing component (4). The lower end of the telescopic rod (2) is fixedly connected to the plug rod (3) through the fixing component (4) and the angle between the telescopic rod (2) and the plug rod (3) can be adjusted. The table stand (1) is hinged to the upper end of the telescopic rod (2), and a fixing component is provided at the hinge of the telescopic rod (2) to fix the table stand (1) to the telescopic rod (2).

2. The extended displacement measurement platform for static load testing of foundation piles according to claim 1, characterized in that: The telescopic rod (2) includes multiple steel pipes (21) that are movably inserted in sequence. Multiple corresponding insertion holes (22) are provided between two adjacent steel pipes (21) along the length direction. Two adjacent steel pipes (21) are inserted into the corresponding insertion holes (22) by fixing rods (23) to fix the two adjacent steel pipes (21).

3. The extended displacement measurement platform for static load testing of foundation piles according to claim 1, characterized in that: A horizontal bubble meter (11) is installed on the upper surface of the stand (1).

4. The extended displacement measurement platform for static load testing of foundation piles according to claim 3, characterized in that: Two horizontal bubble meters (11) are provided, and the two horizontal bubble meters (11) are perpendicular to each other.

5. The extended displacement measurement platform for static load testing of foundation piles according to claim 1, characterized in that: The upper surface of the table stand (1) is provided with grid lines (12).

6. The extended displacement measurement platform for static load testing of foundation piles according to claim 1, characterized in that: A safety rope (13) is provided on the lower surface of the table stand (1), and the other end of the safety rope (13) is connected to the base of the displacement meter (7).

7. The extended displacement measurement platform for static load testing of foundation piles according to claim 1, characterized in that: The lower surface of the table stand (1) is provided with a ball joint (24), the upper end of the telescopic rod (2) is hinged through the ball joint (24), the fixing member is a locking screw (25), the locking screw (25) is threadedly connected to the upper end of the telescopic rod (2) to abut against the surface of the ball joint (24).

8. The extended displacement measurement platform for static load testing of foundation piles according to claim 1, characterized in that: The fixing component (4) includes a connecting plate (41), a rotating shaft (42), and a locking member (43). The insertion rod (3) is fixedly connected to the connecting plate (41). The side wall of the connecting plate (41) is provided with an installation hole (411) and an arc adjustment hole (412). The rotating shaft (42) is rotatably connected to the telescopic rod (2) through the installation hole (411). The locking member (43) is threadedly connected to the telescopic rod (2) through the arc adjustment hole (412).

9. The extended displacement measurement platform for static load testing of foundation piles according to claim 8, characterized in that: Two connecting plates (41) are provided, and a reinforcing plate (44) is fixedly connected between the two connecting plates (41). Three insert rods (3) are provided, two of which are fixed on the two connecting plates (41) respectively, and the other insert rod (3) is fixed on the reinforcing plate (44). The three insert rods (3) are arranged in a triangular distribution, and the two connecting plates (41) are located on the opposite side walls of the telescopic rod (2).

10. The extended displacement measurement platform for static load testing of foundation piles according to claim 9, characterized in that: The insertion rod (3) fixedly mounted on the connecting plate (41) extends outward and is hinged at one end to a reinforcing rod (45). The other end of the reinforcing rod (45) is fixedly mounted on the telescopic rod (2).

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