True triaxial test system and method for simulating influence of different temperatures on deep rock mass

Abstract

The present invention discloses a true triaxial test system for simulating influence of different temperatures on deep rock mass. The system comprises a rolling-type workbench. An X-direction guide rail and a Y-direction guide rail are disposed on an upper surface of the rolling-type workbench. Two X-direction medium principal stress loading mechanisms are movably installed on the X-direction guide rail, and two Y-direction small principal stress loading mechanisms are movably installed on the Y-direction guide rail. A pressure vessel for containing a rock sample is disposed at a symmetrical center of the X-direction guide rail and the Y-direction guide rail. A Z-direction large principal stress loading mechanism is separately disposed on an upper side and a lower side of the pressure vessel. A temperature sensor, a force sensor and a displacement sensor are embedded on an inner side face of each of the X-direction medium principal stress loading mechanisms, the Y-direction small principal stress loading mechanisms, and the Z-direction large principal stress loading mechanisms. The pressure vessel comprises a loading plate. A hydraulic fracturing hole is opened at a central position of a Z-direction top face of the loading plate. A resistive heater apparatus is arranged on an inner side face of the loading plate. The resistive heater apparatus is externally connected to a temperature controller. The system can actually simulate a high ground pressure and high ground temperature environment of different depths of rock mass.

Description

technical field [0001] The invention belongs to the research field of deep rock mass engineering, and in particular relates to a true triaxial test system and method for simulating the influence of different temperatures on deep rock mass. Background technique [0002] With the advancement of social technology, human activities have gradually shifted from the ground to the ground, including mining of coal mines or various metal minerals, subways in big cities, railway road tunnels, underground hydropower stations, underground defense projects, and underground mines with a depth of several kilometers. Unconventional oil and gas exploration and production. All these deep underground projects are affected by complex mechanical environments such as high ground stress, high ground temperature, and high karst water pressure. Deep rock mass engineering disasters occur frequently. The most common rock mass disaster is rockburst. At present, there are rockbursts recorded in my countr...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that in the prior art, simulation experiments under the condition of normal temperature and no confining pressure are often used but lack of simulation of the real environment of deep rock mass, the present invention provides a true triaxial test system and method for simulating the influence of different temperatures on deep rock mass

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