The invention provides a rock high-pressure permeability test
system, comprising a sample depression box device which is provided with a heavy frame inside, a hydraulic jack positioned inside the heavy frame, a movable trolley positioned on the top of the hydraulic jack, and a triaxial depression box fixed on the movable trolley, wherein, the triaxial depression box comprises a confining pressure chamber body, a depression box base with an seepage water inlet and a confining pressure water inlet, a lower actuating post
system which is positioned on the depression box base and is communicated with the seepage water inlet and a seepage
water channel on the sample, an upper actuating post
system of the seepage water outlet which is positioned on the top of the depression box and is communicated with the seepage
water channel on the sample. The test system is provided with an oil-water converting
dynamic control system which is connected with the hydraulic jack, the seepage water inlet and the confining pressure water inlet respectively. The invention can test the permeability of the sample under various conditions, conventional triaxial mechanical characteristics of various loading paths, the seepage at a high permeability pressure, and the stress
coupling process and can control the shaft pressure, the confining pressure, the permeability pressure and the
axial displacement accurately.