CT real-time scanning triaxial stress, seepage and chemical coupling rheology test system

Abstract

The invention relates to a CT real-time scanning triaxial stress, seepage and chemical coupling rheology test system. The system includes a confining pressure chamber (A), an axial pressure chamber (B) and a test chamber (C), the confining pressure chamber (A) comprises a confining pressure chamber cylinder (1) and a confining pressure chamber pedestal (2), and the confining pressure cylinder (1) and the confining pressure cylinder pedestal (2) are fixed and sealed through a bottom screw (3); and the axial pressure chamber (B) includes an axial piston (4), an axial pressure cylinder and an axial pressure cylinder top cover (6), and the system also includes a seepage part, a triaxial stress closed-loop part and a chemical coupling part. The dimension of the triaxial pressure chamber of the test system is small, so the problem of large dimension of the triaxial pressure chamber is solved; and three closed-loop servo metering pumps are adopted to respectively precisely control the confining pressure, the axial pressure and the osmotic pressure, and can provide the pressure sources for MHC coupling rheology test, so a problem that present hydraulic stations are not suitable for long time work is solved, and test data is reasonable and accurate.

Description

technical field [0001] The invention relates to a CT triaxial stress rheological test system, more specifically a CT real-time scanning triaxial stress, seepage and chemical coupling rheological test system. Background technique [0002] Since the 1980s, engineering constructions such as water conservancy and hydropower, geothermal development, oil and gas exploitation, and underground storage have shown unprecedented development momentum. At the same time, some more challenging special projects (such as geological disposal of radioactive waste, carbon dioxide geological storage, etc.). Due to the needs of these major geotechnical engineering design, construction and environmental impact assessment, the stress-seepage-chemical (MHC) coupling problem in geotechnical media has attracted more and more attention. At present, the research on MHC coupling in rock-soil media has become a hot spot and the most advanced topic in the field of rock-soil mechanics and engineering in th...

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Problems solved by technology

[0004] In view of the above-mentioned problems existing in the existing test technology, the purpose of the present invention is to provide a triaxial stress-seepage-chemical coupled rheological test system for CT real-time scanning, which solves the problem of the size of the current triaxial pressure chamber. Big problem, and solve the problem that the current hydraulic station is not suitable for long hours of work

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