A test device for testing seepage size effect of broken rock
mass, vertical support frame includes bottom platform, guide column, adjusting nut and
counterforce beam; hydraulic oil cylinder is installed at the center of the lower end of the
counterforce beam, and is connected with seepage pressure head through pressure head connecting sleeve; cylinder support seat is installed in the central area of the upper end of the bottom platform, and has hollow accommodating cavity in the inside, a plurality of through holes are arranged at the upper end of the cylinder support seat; seepage cylinder is vertically installed on the cylinder support seat; upper and lower seepage plates are arranged at the top and bottom of the inner cavity of the seepage cylinder respectively; broken rock
mass sample is filled in the inside of the seepage cylinder; conical collecting hopper is fixedly installed in the hollow accommodating cavity; the inlet end of the conveying pipeline is connected with the outlet end of the conical collecting head, and the outlet end penetrates out to the outside of the cylinder support seat;
measuring cup is arranged below the outlet end of the conveying pipeline; filter screen is installed at the upper end of the
measuring cup. The device can be used for testing seepage test of broken rock
mass with different sizes and broken rock mass water and sand seepage test.