Axial load test study on the perturbation properties of rock rheology

The rheological deformation on surrounding rock would be changed by the disturbance load in soft rock of deep mine. This paper discussed the establishment of rheological disturbance constructive equation. Firstly,the rock rheological disturbance effect apparatus had been improved on the impact disturbing load setting,which could accu- rately measure each impact disturbing force and time. Secondly,the rheological disturbance effect law for inside and outside the strength limit neighborhood was studied,by using the rheological disturbance effect experiments of red rock on the steady axial load. The accumulated disturbance energy curve had diagrammed according to the test results, which was the accumulated disturbance deformation at different stages. Lastly,combining with the factors of rock rheo- logical disturbance,the rheological disturbance constructive equation was established.