Device for conducting soil around pile destruction test

Abstract

The invention discloses a device for conducting a soil around pile destruction test. The device comprises a base plate, a fixing frame, a container, a pressure device and semi-section piles; the fixing frame is fixedly installed on the upper face of the base plate, and the height of the fixing frame is adjustable; the container is arranged between the fixing frame and the base plate, the side wallof the container is of a transparent structure, and first universal wheels are uniformly arranged on the bottom face of the container; the pressure device is downwards installed on the fixing frame;the bottom ends of the semi-section piles are inserted into the container, the top ends of the semi-section piles are detachably connected with the bottom face of the pressure device, and the side planes of the semi-section piles make contact with the inner wall of the container. According to the device for conducting the soil around pile destruction test, the height of the fixing frame can be flexibly adjusted according to the height of the semi-section piles and the height of the container; and universal wheels are uniformly arranged on the bottom face of the container and the bottom face ofthe base plate, flexible movement can be achieved, and manpower and material resources are saved.

Description

technical field [0001] The invention relates to the technical field of experimental equipment, in particular to a device for performing soil damage tests around piles. Background technique [0002] Concrete expanded disc pile is a new type of pile with variable cross-section. Due to the existence of load-bearing expanded disc, the stress state is quite different from that of straight hole cast-in-situ pile. The current research on concrete expansion piles is the same as other variable cross-section piles, all through finite element analysis, and full-section pile model tests or field tests of real piles, and it is impossible to truly understand the damage state of the soil around the pile. In the existing technology, the actual concrete expansion pile is scaled down, and then broken into two halves along the axis to make a half-pile, and the half-pile is inserted into a transparent container containing a soil sample, and pressure is applied to the top of the half-pile from t...

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Problems solved by technology

[0003] However, there are obvious deficiencies in the devices for the above-mentioned tests in the prior art: firstly, the height of the test support in the prior art cannot be adjusted, resulting in heavy test equipment and difficult disassembly and assembly of the instrument during use, and poor applicability; Because the glass container containing the experimental soil samples is bulky and cannot be moved flexibly, the test process is inconvenient and wastes manpower and material resources; moreover, there are occasional errors between the experiments of each group, resulting in inaccurate experimental results

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