Overview

       The device can achieve triaxial loading for large size coal sample to simulate the buried conditions of real strata.It can let the coal sample penetrate the crack through fracturing experiment by water and supercritical CO2.It can help us master the formation and expansion mechanism of cracks through acoustic emission detector.It can test the variety of permeability to provide theoretical basis and experimental basis for leaching mining in the condition of triaxial fracturing state through permeability testing experiment by liquid medium or gas medium.

Device function

1,simulate true triaxial high temperature hydraulic fracturing;

2,simulate true triaxial supercritical CO2 fracturing;

3,the experiment of rock permeability features in the condition of fracturing;

4,acoustic emission dynamic monitoring of crack propagation process;

Main technical parameters

1,simulated coal sample specification:□100*100*100mm;

□300*300*300mm;

2,working temperature:-10 to 250℃;

3,the maximum simulated loading stress:50MPa;

4,the maximum simulated fracturing stress:80MPa;

5,working medium:water,supercritical CO2;

6,servo loading rate:0.01 to 1kN/s;