Thermal-fluid-solid coupling CT triaxial pressure chamber lifting device for loaded coal and rock mass

Abstract

The invention discloses a loaded coal and rock mass heat-fluid-solid coupling CT triaxial pressure cavity lifting device. A loading unit for a triaxial test unit is formed; the triaxial test unit performs rock sample loading through a loading unit; the triaxial test unit is arranged on a loading table of the loading unit; a linear guide rail pair structure is formed between the loading table and the triaxial test unit; a moving driving device is arranged between the loading table and the triaxial test unit; the loading table is hinged onto a machine frame of the loading unit through a hinging structure; the lower end of one side of the machine table is provided with a workpiece loading table; when the triaxial test table is in a vertical state, the workpiece loading table is positioned right under the vertical state triaxial test unit. The loaded coal and rock mass heat-fluid-solid coupling CT triaxial pressure cavity lifting device has the beneficial effects that the triaxial test unit can be switched between the horizontal state and the vertical state; when the triaxial test unit is in the horizontal state and is matched with the CT scanning system, a CT scanning machine can be pushed in and pulled out in a push-pull mode; the configuration of lifting equipment is not needed; the operation is simple and convenient; the safety is high; in the vertical state, the loading and the unloading of the rock sample are convenient are safe.

Description

technical field [0001] The invention relates to the field of geotechnical engineering, in particular to a thermal-fluid-solid coupled CT triaxial pressure chamber lifting device for loaded coal and rock mass. Background technique [0002] With the advancement of urbanization, the continuous improvement of infrastructure and the continuous improvement of construction technology. The demand for triaxial testing machines is not limited to material engineering, but has been widely used in geotechnical engineering, building materials, geological disaster research and application and other fields. Especially in the field of rock mechanics, the research on the deformation and seepage characteristics of rock under stress is one of the main directions in the field of rock mechanics. The conventional triaxial tester is one of the most common instruments in the field of rock mechanics. After the transformation, we can complete the triaxial test under the condition of thermo-fluid-soli...

AI Technical Summary

Problems solved by technology

[0003] CT technology has been widely used in the fields of medical diagnosis and industrial non-destructive testing. Some scholars have begun to apply CT in the field of rock mechanics, but due to the limitation of CT penetration performance and the absorption of rays by the cavity

At present, the material of the loading chamber used for CT is generally plexiglass or aluminum alloy. The strength-density ratio of these materials is not high, and the stress that the loading chamber made of these materials can withstand is not high.

At the same time, it is difficult to form a good matching structure between the medical CT and the triaxial loading chamber, especially the loading and unloading of the triaxial loading chamber on the CT machine before and after scanning, and the loading of rock samples. The three-axis chamber is lifted and assembled and disassembled. This process is not only cumbersome to operate, but also has great dangers.

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