Pipe pile high strain sensor installation auxiliary device

Abstract

The utility model discloses an auxiliary device for installing a high-strain sensor of a tubular pile. The auxiliary device comprises a vertical telescopic caliper, a transverse telescopic caliper and a positioning disc, the tops of the two vertical telescopic calipers are vertically connected to the two ends of the transverse telescopic caliper respectively; the two positioning discs are respectively connected to the bottoms of the two vertical telescopic calipers; the opposite surfaces of the two positioning discs are back surfaces; a plurality of positioning holes are formed in the front surfaces of the positioning discs; the vertical telescopic caliper and the transverse telescopic caliper are respectively provided with an outer sleeve body and an inner sleeve body, the outer sleeve body is provided with a plurality of positioning clamping holes, and the inner sleeve body is provided with a spring buckle which is positioned and fixed with any positioning clamping hole. When high-strain detection is carried out on the pipe pile, the installation auxiliary device can be unfolded, so that the positioning holes of the two positioning discs can be quickly and accurately aligned to the position to be drilled, and the centers of the strain sensors and the acceleration sensor on the two sides can be ensured to be on the same horizontal line so as to meet the detection requirement of the high-strain test; and the detection benefit and the detection data acquisition accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high strain test detection, in particular to an auxiliary device for installing a pipe pile high strain sensor. Background Art

[0002] In recent years, with the acceleration of my country's urbanization process and the vigorous development of coastal cities, there are more and more high-rise buildings in coastal cities. The foundations of corresponding high-rise buildings adopt pile foundations, especially large-tonnage pile foundations. In order to ensure the safety of buildings, the reliability of pile quality must be evaluated, and the main methods for evaluating pile quality are static load method and high strain method. Although the static load method is relatively reliable, its detection cost is expensive, the detection time is long, and it is severely restricted by the site, especially when the tonnage is large. The high strain method is welcomed by the owner unit because of its low detection cost, fast speed, and little impact from the site. Since the high strain method is a dynamic pile measurement method, the bearing capacity of the foundation pile is obtained by fitting the collected data.

[0003] When conducting high-strain testing, the installation of the sensor is the key to ensure the accuracy of the test results. The quality of sensor installation directly affects the acquisition quality of high-strain detection signals. At present, when conducting high-strain testing, the holes (expansion screw holes) are drilled by impact drilling on site, which can easily cause deviation, resulting in the hole spacing not meeting the requirements and the center of the sensor not being on the same horizontal line. Re-drilling is also very troublesome and has a low success rate, which seriously affects the efficiency of the test. Utility Model Content

[0004] The utility model aims to provide a pipe pile high strain sensor installation auxiliary device, which can assist in accurately positioning the pipe pile and drilling holes, realize the rapid installation of the sensor, and has the advantages of being simple and practical and effectively improving the test detection efficiency.

[0005] In order to achieve the above purpose, the solution of the utility model is:

[0006] A pipe pile high strain sensor installation auxiliary device, comprising a vertical telescopic caliper, a horizontal telescopic caliper and a positioning plate;

[0007] There are two vertical telescopic calipers, and the tops are vertically connected to the two ends of the transverse telescopic caliper respectively. The transverse telescopic caliper is extended and retracted to control the two vertical telescopic calipers to separate or approach in the transverse direction.

[0008] There are two positioning plates, which are respectively connected to the bottoms of two vertical telescopic calipers. The vertical telescopic calipers are telescopically controlled to move the positioning plates vertically away from or close to the horizontal telescopic calipers.

[0009] The opposite surfaces of the two positioning plates are back surfaces, the back surfaces of the positioning plates are plane surfaces or curved surfaces adapted to the outer wall of the pipe pile, and the front surfaces of the positioning plates are provided with a plurality of positioning holes penetrating the front surfaces and the back surfaces;

[0010] The vertical telescopic caliper and the horizontal telescopic caliper respectively have two outer sleeves and inner sleeves which are nested inside and outside. The outer sleeve is provided with a plurality of positioning holes which are evenly spaced. The inner sleeve is provided with a spring buckle which is fixed with any positioning hole for positioning.

[0011] Furthermore, the outer casing and the inner casing are both hollow rectangular tubes.

[0012] Furthermore, the positioning card hole of the outer sleeve is connected to the surface and inner cavity of the inner sleeve, the end of the inner sleeve extends into the inner cavity of the outer sleeve and is provided with a card hole, the card hole connects the surface and inner cavity of the inner sleeve; the spring clip of the inner sleeve is installed in the inner cavity of the inner sleeve, and the ball of the spring clip extends out of the card hole and moves to the positioning card holes of the outer sleeve.

[0013] Furthermore, the telescopic adjustment range of the vertical telescopic caliper is 800mm-1600mm, and the adjustment step is 100mm; the telescopic adjustment range of the lateral telescopic caliper is 400mm-800mm, and the adjustment step is 100 mm.

[0014] Furthermore, the interval between adjacent positioning holes on the outer sleeves of the vertical telescopic caliper and the horizontal telescopic caliper is 100 mm; when the vertical telescopic caliper and the horizontal telescopic caliper are folded, their respective inner sleeves are completely folded into the corresponding outer sleeves.

[0015] Furthermore, the tops of the two vertical telescopic calipers are respectively fixed to the ends of the outer sleeve and the inner sleeve of the transverse telescopic caliper that are away from each other; and the two positioning plates are respectively connected to the bottoms of the inner sleeves of the two vertical telescopic calipers.

[0016] After adopting the above technical scheme, when performing high-strain detection on the pipe pile, the installation auxiliary device can be unfolded, the transverse telescopic caliper can be placed on the top surface of the pipe pile, and the vertical telescopic caliper can be located on both sides symmetrically of the axis of the pipe pile. The length of the transverse telescopic caliper can be quickly adjusted through the spring buckle and the positioning card hole, so that the vertical telescopic calipers on both sides fit the side walls of the pipe pile. By synchronously adjusting the length of the vertical telescopic caliper, the positioning holes of the two positioning plates can be quickly and accurately aligned with the positions to be drilled, and the positioning holes corresponding to each other on both sides can be kept on the same horizontal plane. Holes are drilled on the side walls of the pipe pile along each positioning hole, and then strain sensors and acceleration sensors are installed along each drilled hole. In this way, the installation position and spacing can be controlled, and the centers of the strain sensors and acceleration sensors on both sides can be ensured to be on the same horizontal line, so as to achieve sensor installation standardization, meet the requirements of high-strain test detection, and improve detection efficiency and detection data acquisition accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 It is a front view schematic diagram of an embodiment of the utility model applied to a pipe pile;

[0019] Figure 3 It is a top view schematic diagram of an embodiment of the utility model applied to a pipe pile;

[0020] Figure 4 A schematic top view of a positioning plate according to an embodiment of the utility model;

[0021] Figure 5 It is a front view schematic diagram of an embodiment of the utility model applied to another pipe pile.

[0022] Explanation of reference numerals: installation auxiliary device 10, pipe pile 20, vertical telescopic caliper 1, transverse telescopic caliper 2, positioning plate 3, back side 31, front side 32, positioning hole 33, spring buckle 4, spring piece 41, marble 42, positioning clamping hole 5, clamping hole 6, outer sleeve T1, inner sleeve T2. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] like Figures 1 to 4 As shown, a pipe pile high strain sensor installation auxiliary device 10 of the utility model includes a vertical telescopic caliper 1, a horizontal telescopic caliper 2 and a positioning plate 3.

[0025] There are two vertical telescopic calipers 1, and the tops are vertically connected to the two ends of the transverse telescopic caliper 2 respectively. The transverse telescopic caliper 2 is extended and retracted to control the two vertical telescopic calipers 1 to separate or approach in the transverse direction.

[0026] There are two positioning plates 3, which are respectively connected to the bottom of two vertical telescopic calipers 1. The vertical telescopic caliper 1 is telescopically controlled to move the positioning plates 3 vertically away from or close to the horizontal telescopic caliper 2.

[0027] The opposite surface of the two positioning plates 3 is a back surface 31. The back surface 31 of the positioning plate 3 is a plane or a curved surface adapted to the outer wall of the pipe pile 20. In this embodiment, the back surface 31 of the positioning plate 3 is a curved surface as an example.

[0028] The front side 32 of the positioning plate 3 is provided with a plurality of positioning holes 33 penetrating the front side 32 and the back side 31. In this embodiment, the positioning plate 3 is provided with three positioning holes 33.

[0029] The vertical telescopic caliper 1 and the horizontal telescopic caliper 2 respectively have two outer sleeves T1 and inner sleeves T2 which are nested inside and outside. The outer sleeve T1 is provided with a plurality of positioning holes 5 evenly spaced, and the inner sleeve T2 is provided with a spring buckle 4 which is positioned and fixed with any positioning hole 5.

[0030] By this, when the pipe pile 20 is subjected to high strain detection, the installation auxiliary device 10 can be unfolded, the transverse telescopic caliper 2 is placed on the top surface of the pipe pile 20, and the vertical telescopic caliper 1 is located on both sides of the symmetrical axis of the pipe pile 20. The length of the transverse telescopic caliper 2 is quickly adjusted by the spring buckle 4 and the positioning card hole 5, so that the vertical telescopic calipers 1 on both sides are fitted to the side walls of the pipe pile 20. By synchronously adjusting the length of the vertical telescopic caliper 1, the positioning holes 33 of the two positioning plates 3 can be positioned at the positions to be drilled, and the positioning holes 33 corresponding to each other on both sides can be kept on the same horizontal plane. The side walls of the pipe pile 20 on both sides are drilled along each positioning hole 33, and strain sensors and acceleration sensors are installed along each drilled hole. In this way, the installation position and spacing are controlled, and the centers of the strain sensors and acceleration sensors on both sides can be ensured to be on the same horizontal line, so as to realize the standardization of sensor installation, meet the requirements of high strain test detection, and improve the detection efficiency and the accuracy of detection data collection.

[0031] The vertical telescopic caliper 1 and the horizontal telescopic caliper 2 both adopt a telescopic caliper structure, and are provided with spring buckles 4 and positioning holes 5 for cooperation. When expanding, the inner sleeve T2 and the outer sleeve T1 can be expanded to each other by directly pulling the inner sleeve T2, and positioned by the spring buckles 4 and the positioning holes 5. When shrinking, the spring buckles 4 are pressed to withdraw from the positioning holes 5, so that the inner sleeve T2 and the outer sleeve T1 can be shrunk to each other and re-engaged.

[0032] Specifically, the outer sleeve T1 and the inner sleeve T2 of the present embodiment are both hollow rectangular tubes, and can of course be tubes of other shapes.

[0033] See also Figure 1 The positioning holes 5 of the outer sleeve T1 are connected to the surface and the inner cavity of the inner sleeve T2. The end of the inner sleeve T2 extends into the inner cavity of the outer sleeve T1 and is provided with a buckle hole 6. The buckle hole 6 is connected to the surface and the inner cavity of the inner sleeve T2. The spring buckle 4 of the inner sleeve T2 is installed in the inner cavity of the inner sleeve T2, and the ball of the spring buckle 4 extends out of the buckle hole 6 and moves to the positioning holes 5 of the outer sleeve T1. The spring buckle 4 and the positioning holes 5 are provided to realize the rapid contraction and expansion of the outer sleeve T1 and the inner sleeve T2.

[0034] At the same time, there are certain requirements for the vertical distance between the sensor and the pile top during the test. For piles with a pile diameter greater than 1 meter, the vertical distance is generally not less than 1 times the pile diameter; for other piles, it is generally not less than 2 times the pile diameter or pile width.

[0035] Therefore, in this embodiment, according to the actual size of the pipe pile, the telescopic adjustment range of the vertical telescopic caliper 1 is set to 800mm-1600mm, and the adjustment step is 100 mm; and the telescopic adjustment range of the horizontal telescopic caliper 2 is set to 400mm-800mm, and the adjustment step is 100 mm.

[0036] Specifically, the intervals between adjacent positioning holes 5 on the outer sleeves T1 of the vertical telescopic caliper 1 and the horizontal telescopic caliper 2 are both 100 mm. At the same time, when the vertical telescopic caliper 1 and the horizontal telescopic caliper 2 are folded, their respective inner sleeves T2 are completely folded into the corresponding outer sleeves T1.

[0037] Therefore, when unfolded, the length of the outer sleeve T1 can be made consistent with the length of the longest part of the inner sleeve T2 that can extend out of the outer sleeve T1, that is, the outer sleeve T1 of the vertical telescopic caliper 1 is made 800 mm long, and the inner sleeve T2 of the vertical telescopic caliper 1 is always partially extended in the outer sleeve T1, so the length of the inner sleeve T2 is slightly greater than 800 mm, and the longest part that can be extended is 800 mm; similarly, the outer sleeve T1 of the transverse telescopic caliper 2 is made 400 mm long, and the inner sleeve T2 of the transverse telescopic caliper 2 is slightly greater than 400 mm, and the longest part that can be extended is 400 mm. The outer sleeve T1 and the inner sleeve T2 can be provided with scale indicator lines.

[0038] The above is only a preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, equivalent changes and modifications without departing from the principle of the utility model should still fall within the protection scope of the utility model.

[0039] In the description of the embodiments of the present application, it should be understood that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use, or is the orientation or position relationship commonly understood by technical personnel in this field. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

Claims

1. A pipe pile high strain sensor installation auxiliary device, characterized in that: It includes a vertical telescopic caliper, a horizontal telescopic caliper and a positioning plate; There are two vertical telescopic calipers, and the tops are vertically connected to the two ends of the transverse telescopic caliper respectively. The transverse telescopic caliper is extended and retracted to control the two vertical telescopic calipers to separate or approach in the transverse direction. There are two positioning plates, which are respectively connected to the bottoms of two vertical telescopic calipers. The vertical telescopic calipers are telescopically controlled to move the positioning plates vertically away from or close to the horizontal telescopic calipers. The opposite surfaces of the two positioning plates are back surfaces, the back surfaces of the positioning plates are plane surfaces or curved surfaces adapted to the outer wall of the pipe pile, and the front surfaces of the positioning plates are provided with a plurality of positioning holes penetrating the front surfaces and the back surfaces; The vertical telescopic caliper and the horizontal telescopic caliper respectively have two outer sleeves and inner sleeves which are nested inside and outside. The outer sleeve is provided with a plurality of positioning holes which are evenly spaced. The inner sleeve is provided with a spring buckle which is fixed with any positioning hole for positioning.

2. The auxiliary device for installing a high strain sensor for a pipe pile according to claim 1, characterized in that: The outer casing and the inner casing are both hollow rectangular tubes.

3. The auxiliary device for installing a high strain sensor for a pipe pile according to claim 2, characterized in that: The positioning card hole of the outer sleeve is connected to the surface and the inner cavity of the inner sleeve, the end of the inner sleeve extends into the inner cavity of the outer sleeve and is provided with a card hole, the card hole connects the surface and the inner cavity of the inner sleeve; the spring clip of the inner sleeve is installed in the inner cavity of the inner sleeve, and the ball of the spring clip extends out of the card hole and moves to the positioning card holes of the outer sleeve.

4. The auxiliary device for installing a high strain sensor for a pipe pile according to claim 1, characterized in that: The telescopic adjustment range of the vertical telescopic caliper is 800mm-1600mm, and the adjustment step is 100 mm; the telescopic adjustment range of the horizontal telescopic caliper is 400mm-800mm, and the adjustment step is 100 mm.

5. The pipe pile high strain sensor installation auxiliary device according to claim 4, characterized in that: The interval between adjacent positioning holes on the outer sleeves of the vertical telescopic caliper and the horizontal telescopic caliper is 100 mm; when the vertical telescopic caliper and the horizontal telescopic caliper are folded, their respective inner sleeves are completely folded into the corresponding outer sleeves.

6. The pipe pile high strain sensor installation auxiliary device according to claim 1, characterized in that: The tops of the two vertical telescopic calipers are respectively fixed to the ends of the outer sleeve and the inner sleeve of the transverse telescopic caliper which are away from each other; and the two positioning plates are respectively connected to the bottoms of the inner sleeves of the two vertical telescopic calipers.

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