Device for monitoring displacement of pile top of PC pipe pile

Abstract

The utility model discloses a PC tubular pile top displacement monitoring device, the X-axis direction and the Y-axis direction are defined to form a horizontal plane, the Z-axis direction is the height direction of a tubular pile, the monitoring device comprises a leveling support, a height adjusting rod, a prism and a level tube, the bottom end of the leveling support is erected at the top end of the tubular pile under the ground, the Z-direction adjusting frame at the top of the leveling support is provided with the prism, and the height adjusting rod is connected with the level tube. A plurality of height adjusting rods are circumferentially distributed on the leveling support and axially connected with the leveling support in a penetrating mode, and leveling pipes are fixedly arranged on the top face of the leveling support in the X-axis direction and the Y-axis direction respectively; the bottom of the height adjusting rod penetrates through the leveling support and is in threaded connection with the leveling support, and the bottom end of the height adjusting rod is supported on the top face of the pipe pile. Compared with the prior art, the monitoring device has the advantages of high rigidity and high precision, the labor intensity of personnel can be effectively reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of photoelectric detection technology, specifically a PC pipe pile top displacement monitoring device. Background Technology

[0002] During the construction of precast concrete (PC) pipe piles, the soil squeezing effect can cause horizontal or vertical displacement of adjacent PC pipe piles. Excessive horizontal or vertical displacement can severely affect the bearing capacity of the PC pipe piles. To mitigate this adverse effect, it is necessary to monitor the horizontal and vertical displacement of the affected PC pipe piles. Because a pile cap is installed on top of the pile group, the top of the PC pipe piles is often located at a certain depth below the ground surface after construction. This makes monitoring the horizontal and vertical displacement of the pile tops inconvenient. Common monitoring methods often employ a combination of telescopic rods, prisms, and total stations. However, the relatively low stiffness and difficulty in controlling the verticality of traditional telescopic rods can lead to significant errors in the measured pile top displacement. Therefore, existing technologies need improvement and development. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a PC pipe pile top displacement monitoring device, which has advantages over the prior art in terms of high rigidity and high accuracy, and can effectively reduce the labor intensity of personnel and improve work efficiency.

[0004] To solve the above problems, this utility model provides

[0005] A PC pipe pile top displacement monitoring device is defined with the X and Y axes forming a horizontal plane and the Z axis representing the height direction of the pipe pile. It includes a leveling bracket, height adjustment rods, a prism, and a level tube. The bottom end of the leveling bracket is mounted on the top of the pipe pile below ground level. The top of the leveling bracket has a prism adjusted in the Z-axis direction. Multiple height adjustment rods are circumferentially distributed and axially connected to the leveling bracket. Level tubes are fixed to the top surface of the leveling bracket along the X and Y axes, respectively. The bottom of each height adjustment rod penetrates and is threaded to the leveling bracket, with its bottom end supported on the top surface of the pipe pile.

[0006] Preferably, the leveling bracket includes a top plate, a bottom plate, and multiple fixed rods axially threaded through and connected between the top plate and the bottom plate; the bottom plate is tilted and erected on the top surface of the pipe pile below the ground by a height adjustment rod; the top plate extends in the Z direction to above the ground at the pile opening, the height adjustment rod is threaded through and connected to the top plate, a leveling tube is fixed on the top plate along the X-axis and Y-axis respectively, and a telescopic scale rod is erected in the Z direction in the middle of the top plate.

[0007] Preferably, a handwheel is fixed to the top of the height adjustment lever.

[0008] Preferably, the top of the telescopic scale rod is tilted at an adjustable angle on the XZ vertical plane or the YZ vertical plane to mount the prism.

[0009] Preferably, there are three fixing rods, which are circumferentially distributed at the three vertices of an equilateral triangle and axially connected to the top and bottom plates.

[0010] Preferably, there are three height adjustment rods, which are circumferentially distributed at the three vertices of an equilateral triangle and axially penetrate the top and bottom plates. The equilateral triangle formed by the distribution cross sections of the fixed rods and the equilateral triangle formed by the distribution cross sections of the height adjustment rods are arranged in opposite directions.

[0011] The advantages of this utility model compared with the prior art are as follows:

[0012] This utility model discloses a PC pipe pile top displacement monitoring device, which consists of an integrated frame fixed structure top plate, bottom plate and multiple fixing rods, forming a leveling bracket. This effectively ensures the rigidity of the leveling bracket. The levelness of the entire leveling bracket is adjusted by multiple height adjustment rods on the leveling bracket, so that the top plate remains in a horizontal position. The levelness of the top plate is determined by the level tubes in the X-axis and Y-axis of the top plate. The levelness of the entire leveling bracket can be manually adjusted on the ground by using a handwheel. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a vertical layout diagram of the monitoring device in this utility model;

[0015] Figure 2 This is a schematic diagram of the top plate structure in this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the base plate in this utility model.

[0017] In the diagram: 1-handwheel; 2-prism; 3-telescopic scale rod; 4-level tube; 5-top plate; 6-fixing rod; 7-height adjustment rod; 8-base plate; 9-pipe pile. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Combination Figures 1-3 This utility model provides a PC pipe pile top displacement monitoring device, defining the X-axis and Y-axis as forming a horizontal plane, and the Z-axis as the height direction of the pipe pile 9. It includes a leveling bracket, a height adjusting rod 7, a prism 2, and a level tube 4. The bottom end of the leveling bracket is erected on the top of the pipe pile below the ground. The top of the leveling bracket is equipped with a prism in the Z-axis adjustment. The leveling bracket has multiple height adjusting rods distributed circumferentially and axially penetratingly connected. The top surface of the leveling bracket is fixed with level tubes along the X-axis and Y-axis respectively. The bottom of the height adjusting rod penetrates and is threadedly connected to the leveling bracket, and the bottom end of the height adjusting rod is supported on the top surface of the pipe pile.

[0022] Preferably, the leveling support includes a top plate 5, a bottom plate 8, and multiple fixed rods 6 axially supported between the top plate and the bottom plate; the bottom plate is erected on the top surface of the pipe pile below the ground by the tilt adjustment of the height adjustment rod; the top plate extends in the Z direction to above the ground at the pile opening, the height adjustment rod is movable through the top plate, the leveling tube is fixed along the X-axis and Y-axis respectively on the top plate, and the telescopic scale rod 3 is erected in the Z direction in the middle of the top plate.

[0023] Preferably, the top of the height adjustment rod penetrates the top plate in the Z direction and is coaxially fixed to a handwheel 1.

[0024] Preferably, the top of the telescopic scale rod is tilted at an adjustable angle on the XZ vertical plane or the YZ vertical plane to mount the prism.

[0025] Preferably, there are three fixing rods, which are circumferentially distributed at the three vertices of an equilateral triangle and axially connected to the top and bottom plates.

[0026] Preferably, there are three height adjustment rods, which are circumferentially distributed at the three vertices of an equilateral triangle and axially penetrate the top and bottom plates. The equilateral triangle formed by the distribution cross sections of the fixed rods and the equilateral triangle formed by the distribution cross sections of the height adjustment rods are arranged in opposite directions.

[0027] The working principle of this utility model is as follows:

[0028] A PC pipe pile top displacement monitoring device comprises a top plate, a bottom plate, a fixing rod, a height adjusting rod, a level tube, a handwheel, a telescopic scale rod, and a prism. The device includes the following steps:

[0029] S1. By tightening the locking nuts at the upper and lower ends of the fixing rod, the various parts of the device are connected as a whole; a total station is installed at a certain distance from the PC pipe pile to be measured (this distance is greater than the influence range of the soil squeezing effect of the PC pipe pile, generally more than 1 times the pile length);

[0030] S2. Place the pile top displacement monitoring device on the top of the PC pipe pile to be tested. Adjust the verticality of the device by rotating the handwheel above the height adjustment rod. When the bubbles in the mutually perpendicular level tubes are all centered, it indicates that the verticality of the device meets the requirements.

[0031] S3. Adjust the height of the telescopic scale rod so that the prism above the telescopic scale rod is at the same height as the total station objective lens;

[0032] S4. Use a total station to measure the horizontal and vertical displacement of the pile top at this point;

[0033] S5. Move the device to the next measuring point, repeat steps S2 to S4, and record the test results.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A PC pipe pile top displacement monitoring device, defining the X-axis and Y-axis as forming a horizontal plane, and the Z-axis as the height direction of the pipe pile, characterized in that: The system includes a leveling bracket, height adjustment rods, a prism, and a level tube. The bottom end of the leveling bracket is mounted on the top of the pipe pile below ground. The top of the leveling bracket is fitted with a prism in the Z-axis direction. Multiple height adjustment rods are distributed circumferentially and axially connected to the leveling bracket. Level tubes are fixed to the top surface of the leveling bracket along the X-axis and Y-axis, respectively. The bottom of the height adjustment rod penetrates and is threaded to the leveling bracket, and the bottom end of the height adjustment rod is supported on the top surface of the pipe pile.

2. The PC pipe pile top displacement monitoring device according to claim 1, characterized in that: The leveling support includes a top plate, a bottom plate, and multiple fixed rods axially threaded through and connected between the top plate and the bottom plate; the bottom plate is tilted and erected on the top surface of the pipe pile below the ground by a height adjustment rod; the top plate extends Z-axis to above the ground at the pile opening, and the height adjustment rod is threaded through and connected to the top plate; a leveling tube is fixed on the top plate along the X-axis and Y-axis respectively, and a telescopic scale rod is erected in the Z-axis of the middle of the top plate.

3. The PC pipe pile top displacement monitoring device according to claim 2, characterized in that: A handwheel is fixed to the top of the height adjustment rod.

4. The PC pipe pile top displacement monitoring device according to claim 2, characterized in that: The top of the telescopic scale rod is tilted at an angle to mount a prism on the XZ vertical plane or the YZ vertical plane.

5. The PC pipe pile top displacement monitoring device according to claim 2, characterized in that: The fixed rods are provided in three parts, and the three fixed rods are circumferentially distributed at the three vertices of an equilateral triangle and axially connected to the top plate and the bottom plate.

6. The PC pipe pile top displacement monitoring device according to claim 5, characterized in that: The height adjustment rods are provided in three parts, and the three height adjustment rods are circumferentially distributed at the three vertices of an equilateral triangle and axially penetrate the top plate and the bottom plate. The equilateral triangle formed by the distribution cross sections of the fixed rods and the equilateral triangle formed by the distribution cross sections of the height adjustment rods are arranged in opposite directions.

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