Rock damage mechanics test system under deep high-temperature high-pressure environment

Abstract

The invention belongs to the field of engineering rock mass experimental equipment, and in particular provides a device matched with protection, repair and maintenance of a mechanics test system (MTS). The technical problem to be solved by the invention is to provide a rock damage mechanics test system under a deep high-temperature high-pressure environment, improve the mounting and dismounting efficiency of a triaxial force sensor of the MTS, improve the lifting reliability, simultaneously solve the problem of mounting the force sensor in a hole, and improve the mounting efficiency.

Description

technical field [0001] The invention belongs to the field of rock mechanics testing of engineering rock mass, in particular to a rock damage mechanics testing system under deep high temperature and high pressure environment. Background technique [0002] Indoor rock mechanics tests such as triaxial tests are necessary basic tests for various types of rock engineering. Triaxial tests of rock mechanics under high temperature and high pressure are also extremely important for various types of rock engineering in deep ground. The reliability of damage mechanics test is of great significance for deep rock engineering construction. As the core load sensor for simulating rock damage mechanics tests in deep high temperature and high pressure environment, accurate measurement of high temperature and high pressure load sensor is very important. Due to the special and complex test conditions such as high temperature and high pressure, in actual tests, the high temperature and high pre...

AI Technical Summary

Problems solved by technology

MTS rock mechanics testing machine is one of the most advanced and widely used rock mechanics equipment in the world, but its structure is complex and special. High-pressure load sensor, etc., in which the upper end of the solid rigid column and the solid steel load frame are connected by high-strength bolts, and the high-temperature and high-pressure load sensor is connected to the lower end of the solid rigid column by a bolt and a limit pin. Arranged with high temperature, high pressure, seepage and other precision cables

Therefore, it is extremely difficult and risky to assemble and disassemble the high temperature and high pressure load cell inside the triaxial chamber

The difficulties are as follows: first, the high temperature and high pressure load sensor itself is heavy, and it only relies on manpower to lift, the lifting time is short and the lifting stability is poor; the second is that the high temperature and high pressure load sensor realizes the bolt hole and the limit pin hole simultaneously in the three-axis chamber. The docking is difficult and the operating space is limited; the third is that under the action of unstable suction between the high temperature and high pressure load sensor and the rigid column, it is difficult to disassemble the high temperature and high pressure load sensor and the risk of sudden falling off is high

The risk is: the instability of human lifting can easily cause the drop damage of the precious high-temperature and high-pressure load sensor; the sudden disappearance of unstable suction and the drop of the sensor caused by lifting instability may cause damage to the precision wiring of the triaxial chamber base. damage and physical and mechanical injury to personnel

Obviously, the current method of alignment installation and disassembly under manual lifting is not only difficult to operate but also high risk

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