Foundation pile compression resistance detection device

Abstract

The utility model is suitable for the field of bridge pile detection, and provides a foundation pile compression resistance detection device which comprises a light position calibrator installed on at least one reference pile. The light position calibrator comprises an inner sleeve fixedly installed on the reference pile and an outer sleeve which is sleeved outside the inner sleeve and can rotate relative to the inner sleeve. In this way, a light ray positioning mode is adopted for replacing a traditional measuring ruler positioning mode, the work intensity of installation personnel is reduced, and more importantly, laser positioning is not affected by a reference (the ground).

Description

Technical Field

[0001] The utility model relates to the field of pile foundation detection, in particular to a pile foundation compression performance detection device. Background Art

[0002] See also Figure 1 The single pile vertical compressive static load test is mainly used for the detection of the compressive performance of various pile foundations (bridge piles, road piles, etc.), which mainly includes a pile foundation 00 to be tested, a reference pile 01 arranged around the pile foundation 00 to be tested, and a reference beam 02 installed on the reference pile 01; a micrometer 03 is mounted on the reference beam 02, and the working end of the micrometer 03 is in contact with the outer disk surface of the pile foundation 00 to be tested; after the pile foundation 00 to be tested is sunken by the pressure of the load unit 05, the value on the micrometer 03 will change, and the compressive condition of the pile foundation 00 to be tested will be further reflected by the change in the value.

[0003] In the above detection process, the two reference beams 02 need to be installed on the reference pile 01 in a horizontal state as much as possible, and the two reference beams 02 should be parallel at the same height as much as possible to facilitate the installation of the micrometer 03. At present, the installation of the lock between the reference beam 02 and the reference pile 01 is done by measuring the distance between the ground and the lock with a ruler, which is prone to errors (easily affected by uneven ground).

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of the utility model is to provide a pile compression performance testing device, which adopts light positioning instead of traditional measuring ruler positioning, reducing the workload of installers. More importantly, laser positioning is not affected by the reference (ground).

[0006] In order to achieve the above-mentioned purpose, the utility model provides a bridge pile compression resistance performance detection device, including a light position verifier installed on at least one reference pile; the light position verifier includes an inner sleeve fixedly installed on the reference pile and an outer sleeve mounted on the outside and rotatable relative to the inner sleeve; a light source emitting unit is provided on the outer sleeve.

[0007] According to the pile foundation compression performance detection device of the utility model, the light emitted by the light source emitting unit is perpendicular to the axis of the reference pile.

[0008] According to the pile foundation compression performance testing device of the utility model, the inner sleeve is provided with a compression positioning structure for realizing its positioning with the reference pile; the compression positioning structure includes a bladder arranged on the inner wall of the inner sleeve and an adjusting component for adjusting the air pressure in the bladder; during positioning, the bladder expands and the bladder wall is pressed against the outer side of the reference pile.

[0009] According to the pile compression performance testing device of the utility model, the adjustment component includes a piston cavity placed in the inner sleeve and a piston rod installed in the piston cavity and moving along its axial direction, and the piston cavity is connected to the sac.

[0010] According to the pile compression performance testing device of the utility model, a through hole is arranged on the side wall of the inner sleeve, and the piston rod passes through the through hole.

[0011] According to the pile compression performance testing device of the utility model, a position positioning structure for positioning the piston rod is also provided on the inner sleeve; the position positioning structure includes a cap bolt provided on the end of the piston rod and a threaded structure provided on the cap bolt and the through hole and cooperating with each other.

[0012] The utility model provides a bridge pile compression performance detection device, including a light position checker installed on at least one reference pile; the light position checker includes an inner sleeve fixedly installed on the reference pile and an outer sleeve sleeved outside the inner sleeve and rotatable relative to the inner sleeve; a light source emitting unit is arranged on the outer sleeve. The utility model adopts light positioning to replace the traditional measuring ruler positioning, which reduces the work intensity of the installer, and more importantly, the laser positioning is not affected by the reference (ground). BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the vertical compressive static load test of a single pile;

[0014] Figure 2 It is a structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the use of the utility model;

[0016] Figure 4 It is a structural schematic diagram of a light position verifier;

[0017] Figure 5 It is a schematic diagram of the internal structure of the light position verifier;

[0018] In the figure, 00-foundation pile to be measured, 01-reference pile, 02-reference beam, 03-micrometer, 05-load unit, 1-inner sleeve, 11-piston cavity, 2-outer sleeve, 21-annular convexity, 22-annular groove, 3-light source emitting unit, 4-cap, 5-piston rod, 6-through hole, 7-cap bolt. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] See also Figure 2 , Figure 4 and Figure 5 The utility model provides a pile foundation compressive performance detection device, which includes a light position verifier installed on at least one reference pile 01. There is no requirement for the number of light position verifiers to be installed. Specifically, during use, it only needs to be installed on one reference pile 01, and the position of the lock installed on the reference pile 01 is verified by using the light position verifier.

[0021] The light position verifier includes an inner sleeve 1 fixedly mounted on the reference pile 01 and an outer sleeve 2 which is mounted on the outside of the inner sleeve 1 and can rotate relative to the inner sleeve 1. Specifically, a rotation positioning structure is provided between the inner sleeve 1 and the outer sleeve 2, and the rotation positioning structure is a ring convexity 21 and a ring groove 22 which cooperate with each other; a light source emitting unit 3 is provided on the outer sleeve 2 (a laser emitter is commonly used), wherein the light emitted by the light source emitting unit 3 is perpendicular to the axis of the reference pile 01.

[0022] See also Figure 2 and Figure 3 During the verification process, the light source emitting unit 3 is turned on, and the verification light source emitted by it will illuminate the specific position of the other reference pile 01 (the position is the installation position of the lock). It should be explained that before the above-mentioned light position verifier is used, the reference pile 01 has been tested for verticality.

[0023] By using laser positioning instead of traditional measuring tape positioning, the workload of installers is reduced. More importantly, laser positioning is not affected by the reference (ground).

[0024] Preferably, in order to facilitate the installation of the light position checker, the present application has made the following improvements: the inner sleeve 1 is provided with a compaction positioning structure for realizing the positioning of the inner sleeve 1 with the reference pile 01;

[0025] See also Figure 4 and Figure 5The compression positioning structure includes a bladder 4 arranged on the inner wall of the inner sleeve 1 and an adjustment component for adjusting the air pressure in the bladder 4. Specifically in this embodiment, the bladder 4 is an air bag or a liquid bag; when positioning, the bladder 4 expands and the bladder wall is pressed against the outside of the reference pile 01. The expanded bladder 4 generates pressure on the inner wall of the inner sleeve 1 and the outside of the reference pile 01 at the same time, further increasing the friction between the light position verifier and the reference pile 01, so as to realize the position positioning of the light position verifier. The adjustment component includes a piston chamber 11 placed in the inner sleeve 1 (in this embodiment, the piston chamber 11 adopts a cylindrical chamber) and a piston rod 5 installed in the piston chamber 11 and moving along its axial direction. The piston chamber 11 is connected with the bladder 4. When the position of the light position verifier needs to be positioned, it is only necessary to push the piston rod 5 to move, and the piston rod 5 pressurizes the inside of the piston chamber 11, and the fluid in the piston chamber 11 further flows into the bladder 4 to realize the expansion of the bladder 4 (when the positioning is cancelled, the direction operation is sufficient).

[0026] In addition, the inner sleeve 1 of the utility model is provided with a through hole 6 on the side wall, and the piston rod 5 passes through the through hole 6. In order to optimize the positioning effect of the capsule 4 on the light position verifier, the inner sleeve 1 is also provided with a position positioning structure for positioning the piston rod 5; by positioning the piston rod 5, the stability of the pressure in the capsule 4 is further maintained. The position positioning structure includes a cap bolt 7 provided at the end of the piston rod 5 and a threaded structure provided on the cap bolt 7 and the through hole 6 that cooperate with each other. When in use, after pushing the piston rod 5 into the through hole 6, the cap bolt 7 and the thread of the through hole 6 can be tightened (it can be tightened by a cross wrench).

[0027] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A pile compression performance testing device, characterized in that: including a light position checker mounted on at least one reference stake; The light position checker comprises an inner sleeve fixedly mounted on the reference pile and an outer sleeve sleeved outside the inner sleeve and rotatable relative to the inner sleeve; a light source emitting unit is arranged on the outer sleeve.

2. The pile compression performance testing device according to claim 1, characterized in that: The light emitted by the light source emitting unit is perpendicular to the axis of the reference pile.

3. The pile compression performance testing device according to claim 1 or 2, characterized in that: The inner sleeve is provided with a compaction and positioning structure for positioning the inner sleeve with the reference pile; The compression and positioning structure includes a sac arranged on the inner wall of the inner sleeve and an adjusting component for adjusting the air pressure in the sac; During positioning, the bladder expands and the bladder wall is pressed against the outside of the reference pile.

4. The pile compression performance testing device according to claim 3, characterized in that: The regulating assembly comprises a piston cavity placed in the inner sleeve and a piston rod which is mounted in the piston cavity and moves along the axial direction of the piston cavity. The piston cavity is connected with the capsule.

5. The pile compression performance testing device according to claim 4, characterized in that: A through hole is arranged on the side wall of the inner sleeve, and the piston rod passes through the through hole.

6. The pile compression performance testing device according to claim 5, characterized in that: The inner sleeve is also provided with a position positioning structure for positioning the piston rod; The position positioning structure comprises a cap bolt arranged at the end of the piston rod and a threaded structure arranged on the cap bolt and the through hole and matched with each other.

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