Seismic oscillation simulation testing machine for macroscopic and microscopic damage joint tracking of rock mass and method thereof

Abstract

The invention discloses a seismic oscillation simulation testing machine for macroscopic and microscopic damage joint tracking of rock mass and a method thereof. The testing machine provided by the invention is suitable for real-time tracking measurement of macroscopic deformation and microscopic damage under the action of different seismic oscillations. The testing machine comprises an MTS vertical press machine, a door-type supporting frame, a vertical pressure-bearing platform, a rigid working platform, a rigid indenter, an MTS lateral press machine, a sealed anti-radiation test chamber, a test chamber supporting rod, a macroscopic optical camera, a microscopic optical camera, a CT scanning machine, a strong spotlight, a locating rod, a data processor, a terminal server and several lines. Under the action of different seismic oscillations, full-field strain measurement of rock mass in different scales can be realized, thus providing laboratory testing technical support for determination of macroscopic and microscopic mechanical parameters and identification of dynamic damage of rock mass.

Description

technical field [0001] The invention relates to the technical field of rock dynamics indoor testing, in particular to an imitation ground motion testing machine and method for joint tracking of macroscopic and microscopic damage of rock mass. Background technique [0002] In recent years, my country's infrastructure construction has developed rapidly. As various long-term traffic (hydraulic) tunnels (tunnels) and large-scale underground buildings (groups) have been built and put into use, a large number of rocks related to underground engineering have emerged. Mechanical problems, especially for underground engineering in high-intensity areas, also need to solve rock dynamic problems. It is necessary to study the dynamic behavior of disturbed rock mass, so as to grasp the seismic dynamic response and deformation damage of underground structures mechanism. Rock mass medium often has characteristics such as heterogeneity, discontinuity, and anisotropy, and its mechanical proper...

AI Technical Summary

Problems solved by technology

Liu Yonglu (Research on the application of digital image measurement technology in geotechnical engineering tests [D]. Dalian: Dalian University of Technology, 2008.) mainly introduced the application of digital image technology including optical means in the field of accurate measurement of rock mass macroscopic deformation However, the application of this technology in rock dynamics tests is not covered throughout the paper

At present, in the journals and literatures that have been searched, there is no report on the imitation ground motion testing machine for joint tracking of rock mass macro and micro damage

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