Experimental Study of Hysteresis Characteristics of Water-Sediment Mixture Seepage in Rock Fractures

Figure 2

Testing system of water-sediment mixture seepage in rock fractures. (I) Water-sediment mixture stirring system. (II) Water-sediment mixture transport system. (III) Control and data acquisition system. (IV) Fractured rock mass seepage system. (a) stirring tank, (b) hand pump, (c) single screw pump, (d) VVVF, (e) pressure transmitter, (f) flow sensor, (g) PC, (h) paperless recorder, and (J) permeameter. (11) specimen, (12) seal, (1) electric machine, (2) reducer, (3) vessel, (4) stirring shaft, (5) stirring impeller, (6) double-acting hydraulic cylinders, (7) vertical shaft, (8) handwheel, (9) screw nut, (10) lower support plate, (13) base, (14) reducer, (15) electric machine, (16) thrust bearing, (17) chain wheel-chain transmission mechanism, (18) guidepost, (19) high-precision ball screw, and (20) roof. (i) Signal transmission line and (ii) mixture transmission pipeline.