Foundation pile vertical compression resistance static load test detection device

Abstract

The utility model discloses a foundation pile vertical compression resistance static load test detection device which comprises a precast pile body, a jack is installed on the top of the precast pile body, a cross beam is arranged at the driving end of the jack, positioning columns are detachably connected to the two ends of the cross beam, supporting pieces are rotationally connected to the two positioning columns, and the supporting pieces are connected to the top of the precast pile body. One end, far away from the positioning column, of the supporting piece is connected with the top of the cross beam in a clamped mode, the jack is driven and acts on the cross beam, the top of the cross beam is supported through the supporting piece, loads can be evenly distributed on the cross beam, local stress concentration of the cross beam can be reduced, and the service life of the cross beam is prolonged. Local deformation or damage of the cross beam in the loading process is prevented, and the accuracy of static load detection can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, especially pile vertical compression static load test device of foundation. BACKGROUND

[0002] The engineering pile detection acceptance of building engineering generally has two aspects of pile body integrity and bearing capacity detection, and single pile vertical compression bearing capacity test in the bearing capacity detection is an important content.

[0003] The patent with the announcement number CN221422070U moves the cross beam upward through the pressure boosting of the jack, moves the positioning column upward through the pull rod, and can test the vertical compression static load of the pile body through the reaction force of the jack, but when the jack exerts force on the middle part of the cross beam, the problem of stress concentration is prone to occur, which causes the middle part of the cross beam to deform, and the accuracy of detection is reduced. UTILITY MODEL CONTENT

[0004] The utility model provides the following technical scheme in view of the deficiency of the prior art.

[0005] The pile vertical compression static load test device of foundation, including prefabricated pile body, the top of prefabricated pile body is installed with jack, the drive end of jack is provided with cross beam, and the both ends of cross beam are detachably connected with positioning column, and two groups of positioning column are rotatably connected with support on two groups of positioning column, and the end, away from positioning column, of support is clamped and connected with the top of cross beam, the jack is driven, the jack acts on cross beam, cross beam acts on the jack reversely as reaction force, and the prefabricated pile body is pressed downward by the jack.

[0006] As the improvement of the above technical scheme, the support includes the inner sleeve rotatably connected to the positioning column, the outer sleeve movably sleeved on the surface of the inner sleeve, and the screw rod arranged between the inner sleeve and the outer sleeve, the end, away from the inner sleeve, of the outer sleeve is rotatably connected with the clamping sleeve, and the clamping sleeve is clamped and connected with the cross beam.

[0007] As the improvement of the above technical scheme, the clamping groove matched with the clamping sleeve is formed in the cross beam.

[0008] As the improvement of the above technical scheme, the through hole matched with the cross beam is formed in the positioning column, the end of the cross beam extends to the outside of the positioning column through the through hole, the end of the cross beam extending to the outside of the positioning column is movably inserted with the limiting rod, and the bolts are threadedly inserted into the both ends of the limiting rod.

[0009] As the improvement of the above technical scheme, the reinforcing rib is fixedly connected to the bottom of the cross beam, the side wall of the reinforcing rib abuts against the positioning column, the side wall of the reinforcing rib is provided with the protrusion, and the groove matched with the protrusion is formed in the positioning column.

[0010] The utility model discloses the beneficial effect:

[0011] The load can be evenly distributed on the cross beam by the support to the top of the cross beam, which helps to reduce the local stress concentration of the cross beam, prevents the local deformation or damage of the cross beam in the loading process, and can improve the accuracy of static load detection. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the overall structure front view of the utility model;

[0013] Figure 2 It is the structure schematic view of the cross beam of the utility model.

[0014] Reference signs: 10, positioning column;101, mounting hole;11, inner sleeve;12, outer sleeve;13, clamping sleeve;20, prefabricated pile body;30, jack;40, cross beam;41, limiting rod;412, bolt;42, reinforcing rib;421, protrusion. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is combined with the drawings and example, and the utility model is further described in detail. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0016] The base pile vertical compression static load test detection device, including prefabricated pile body 20, the top of prefabricated pile body 20 is installed with jack 30, the drive end of jack 30 is provided with cross beam 40, and the both ends of cross beam 40 are detachably connected with positioning column 10, and two groups of positioning column 10 are rotatably connected with support, and the end away from positioning column 10 of support is clamped and connected with the top of cross beam 40, drives jack 30, and jack 30 acts on cross beam 40, and cross beam 40 acts reversely on jack 30 as counterforce, and jack 30 downwardly presses prefabricated pile body 20.

[0017] The lower part of the two positioning columns 10 is anchored into the ground to form an integral fixing, the jack 30 is placed on the top of the precast pile body 20, so that the driving end of the jack 30 is in contact with the middle part of the cross beam 40, then the cross beam 40 is pushed up by increasing the pressure of the jack 30, the cross beam 40 acts as a counter-force acting member and acts on the jack 30 in the opposite direction, so that the jack 30 presses the precast pile body 20 downward, the vertical compressive static load of the precast pile body 20 can be detected, and the top of the cross beam 40 is supported by the supporting member, so that the load can be uniformly distributed on the cross beam 40, which helps to reduce the local stress concentration of the cross beam 40 and prevent the cross beam from being locally deformed or damaged during loading, thereby improving the accuracy of static load detection and ensuring the stability of the load transmission path during loading and reducing the occurrence of accidents.

[0018] In one embodiment, with reference to Figure 1 , the supporting member comprises the inner sleeve 11 rotatably connected to the positioning column 10, the outer sleeve 12 movably sleeved on the surface of the inner sleeve 11, and the screw rod arranged between the inner sleeve 11 and the outer sleeve 12, one end of the outer sleeve 12 away from the inner sleeve 11 is rotatably connected with the clamping sleeve 13, and the clamping sleeve 13 is clamped and connected with the cross beam 40;

[0019] When it is needed to use, the screw rod is loosened, the inner sleeve 11 is pulled out, then the clamping sleeve 13 is placed on the top of the cross beam 40, the screw rod is tightened, and the inner sleeve 11 is fixed with the outer sleeve 12, so as to support the top of the cross beam 40.

[0020] In order to improve the supporting effect, the cross beam 40 is provided with a clamping groove matched with the clamping sleeve 13, and the clamping sleeve 13 is limited by the clamping groove, so that the displacement of the clamping sleeve 13 during supporting is effectively avoided.

[0021] In one embodiment, with reference to Figure 1 and Figure 2 , the positioning column 10 is provided with a through hole 101 matched with the cross beam 40, the end of the cross beam 40 extends to the outside of the positioning column 10 through the through hole 101, one end of the cross beam 40 extending to the outside of the positioning column 10 is movably inserted with a limiting rod 41, and the limiting rod 41 is screwed with a bolt 412 at both ends;

[0022] Specifically, when the device is needed to be used, the two ends of the cross beam 40 are inserted into the through holes 101 of the two groups of positioning columns 10 respectively, then one end of the cross beam 40 inserted into the through hole 101 is inserted into the limiting rod 41, and the limiting rod 41 is screwed into the bolt 412 at both ends to limit and fix, so that the cross beam 40 and the positioning column 10 can be installed or disassembled, and the detection device is convenient to carry.

[0023] In order to improve the strength of the connection between the cross beam 40 and the positioning column 10, the bottom of the cross beam 40 is fixedly connected with a reinforcing rib 42, the side wall of the reinforcing rib 42 is in abutment with the positioning column 10, the side wall of the reinforcing rib 42 is provided with a protrusion 421, and a groove matched with the protrusion 421 is formed in the positioning column 10, so that the stability between the positioning column 10 and the cross beam can be improved, the compression resistance of the cross beam 40 can be improved, the practicability of the device can be improved, and the stability of the connection between the reinforcing rib 42 and the positioning column 10 can be improved.

[0024] The above examples are only used to illustrate the technical solutions of the present application, but not limit it.

Claims

1. A device for detecting the vertical compressive static load of a pile, characterized in that, The utility model provides a precast pile body (20) is provided with the jack (30) on the top, the driving end of jack (30) is provided with crossbeam (40), the both ends of crossbeam (40) are detachably connected with the locating column (10), and the locating column (10) is rotatably connected with the support on two groups, and the end of support away from locating column (10) is clamped with the top of crossbeam (40), drive jack (30), jack (30) acts on crossbeam (40), crossbeam (40) acts reversely as counterforce on jack (30), and jack (30) presses down precast pile body (20).

2. The device for testing the vertical compression static load of a pile according to claim 1, characterized in that: The support includes an inner sleeve (11) rotatably connected to the locating column (10), an outer sleeve (12) movably sleeved on the surface of the inner sleeve (11), and a screw rod arranged between the inner sleeve (11) and the outer sleeve (12), one end of the outer sleeve (12) away from the inner sleeve (11) is rotatably connected with a clamping sleeve (13), and the clamping sleeve (13) is clamped with the crossbeam (40).

3. The device for testing the vertical compression static load of a pile according to claim 2, characterized in that: The crossbeam (40) is provided with a clamping groove matched with the clamping sleeve (13).

4. The device for testing the vertical compression static load of a pile according to claim 1, characterized in that: The locating column (10) is provided with a through hole (101) matched with the crossbeam (40), and the end of the crossbeam (40) extends to the outside of the locating column (10) through the through hole (101), one end of the crossbeam (40) extending to the outside of the locating column (10) is movably inserted with a limiting rod (41), and the both ends of the limiting rod (41) are screwedly inserted with bolts (412).

5. The apparatus for testing the vertical compressive static load of a pile according to claim 1, wherein: The crossbeam (40) is fixedly connected with a reinforcing rib (42) at the bottom, the sidewall of the reinforcing rib (42) abuts against the locating column (10), the sidewall of the reinforcing rib (42) is provided with a protrusion (421), and the locating column (10) is provided with a groove matched with the protrusion (421).

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