Research and Application of TAW-3000 Electrohydraulic Servo Rock Triaxial Test Machine

Abstract：In order to study the strength of the mine roadway surrounding rock under different support restraint condition and to study the mechanics features of the surrounding rock when a mine pressure bumping occurred, the rock triaxial pressure-strain curve after peak could be obtained with the test method and the electrohydraulic servo controlled triaxial pressure machine could be the best advanced e- quipment with the full curve drawing. The new research and developed TAW-3000 electrohydraulic servo rock triaxial test machine was e- quipped with the advanced control technology of the test machine at home and abroad and was improved in the structure and functions. A door type integrated frame with a rigidity over 5 GN/m, a self balanced pressure room, EDC full digital servo measurement and controller, a pore water system of the mechanic and hydraulic combined mechanism, a specimen high temperature, and the expansion interface of the acoustic emission and other equipments were designed. With the axial force of 3 000 kN, the surrounding pressure of 100 MPa, the per- meable water pressure of 60 MPa and other technical index provided and with the confirmation of the uniaxial compression of the coal and gas, triaxial compression, unloading test and others, the function of the test machine is advancing and the performances are excellent.