Engineering pile and load box with magnetic suction device
A technology of load boxes and engineering piles, which is applied in foundation structure engineering, foundation structure tests, and the use of stable tension/pressure to test the strength of materials, etc., which can solve the problem of discontinuous vertical reinforcement of piles, waste of manpower and material resources, and detection costs Increase and other problems, to achieve the effect of saving test costs
Active Publication Date: 2021-02-19
CHONGQING JIAOTONG UNIVERSITY
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Problems solved by technology
[0004] The existing problem is: when installing the load box in the prior art, the vertical steel bars of the upper steel cage and the lower steel cage are respectively connected with the top plate and the bottom plate, resulting in the discontinuity of the vertical steel bars in the pile body, and this pile body cannot be used in subsequent construction. It is used as an engineering pile during the process and can only be used as a test pile. After the static load testing operation of the bearing capacity is completed, it will be discarded; increase, and wasted a lot of manpower and material resources
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[0037] An engineering pile with a magnetic suction device, its innovation lies in: the engineering pile includes a pile body and a load box 2; the pile body is a reinforced concrete structure; the load box 2 is arranged in the middle of the pile body; the steel bar in the pile body The cage is divided into two sections along the axial direction of the pile body. The section of reinforcement cage located on the upper side of load box 2 is denoted as upper reinforcement cage 1, and the section of reinforcement cage located on the lower side of load box 2 is denoted as lower reinforcement cage 3; the upper reinforcement cage 1. The load box 2 and the lower reinforcement cage 3 are connected as a whole through concrete;
[0038] The load box 2 includes a top plate 2-1, a bottom plate 2-2, a plurality of hydraulic cylinders 2-3, a plurality of plastic sleeves 2-4, a top plate displacement observation rod 2-5, a bottom plate displacement observation rod 2-6 and multiple A magnetic d...
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The invention discloses an engineering pile with a magnetic suction device and a load box. The engineering pile includes a pile body and a load box; the load box is arranged in the middle of the pile body; the load box includes a top plate, a bottom plate, a plurality of hydraulic cylinders, A plurality of plastic sleeves, top plate displacement observation rods, bottom plate displacement observation rods and a plurality of magnetic suction devices; the beneficial technical effect of the present invention is: a kind of engineering pile and load box with magnetic suction devices are proposed, and the scheme makes the pile body It can still be used as an engineering pile after the test is over, which can greatly save the test cost.
Description
technical field [0001] The invention relates to a pile foundation bearing capacity detection technology, in particular to an engineering pile with a magnetic suction device and a load box. Background technique [0002] In construction engineering projects, a large number of pile foundations need to be used; according to the national requirements on the acceptance of foundation and pile foundation engineering quality, static load testing of pile foundation test piles and engineering piles should be carried out to determine and test the bearing capacity of single piles. And as a mandatory clause for pile quality acceptance requirements. [0003] In the prior art, the self-balancing method load box technology is usually used when carrying out the static load test of the bearing capacity. The common load box generally includes a top plate, a bottom plate, a hydraulic cylinder, a top plate displacement observation rod, and a bottom plate displacement observation rod. The hydrauli...
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IPC IPC(8): G01N3/08E02D33/00
CPCE02D33/00
Inventor 郭增伟郭瑞琦郑罡
Owner CHONGQING JIAOTONG UNIVERSITY