RT3型岩石高压真三轴仪的研制

Development of RT3 Type Rock High Pressure True Triaxial Machine

本文介绍了新近研制成功的岩石高压真三轴仪的结构特点、功能和试验研究结果。岩石高压真三轴仪能够独立地控制和改变三个主应力,从而可模拟工程岩体和地壳内部的任何应力状态和应力途径,是对卡阿曼(Von.Karman)型普通三轴压缩仪的重大改进。RT3型岩石高压真三轴仪,可施加最大主应力到800MPa,中间主应力200MPa,最小主应力200MPa,并能测定三个主应力方向的应变和声波参数,可供岩石力学基础理论、工程岩体稳定性和地震前兆特性等研究之用。

This paper introduces the structural characters and functions of the rock high pressure true triaxial machine newly developed and some research results with this machine. By the rock high pressure true triaxial machine, three principal stresses can be controlled and changed independently, so that any stress state and stress path in engineering rock mass and earth's crust can be simulated. It is an important development of Karman type general triazial machine. By RT3 type rock high pressure true triaxial machine, the maximum principal stress can be applied up to 800 MPa, the intermediate and minimum principal stress up to 200 MPa. The strains and parameters of sonic wave in the directions of three principal stresses can also be determined. The machine is used well for studying the basic theory on rock mechanics, the stability of engineering rock mass and the behaviours of earthquake precursors.