Low coverage coal seam bao shui coal mining solid -liquid coupling simulation test device

The utility model relates to a be applicable to research low coverage coal seam bao shui coal mining solid -liquid coupling simulation test test device. The device includes three -dimensional model test stand, bottom plate, overlying rock, loading device, monitoring devices and last coal seam and the lower coal seam compriseed a plurality of oily bags. The overlying rock is established water -bearing stratum analogue means and is located the water barrier of water -bearing stratum analogue means lower part. Water -bearing stratum analogue means by the water -bearing stratum, be located water -bearing stratum water -stop sheet, a plurality of water -bearing stratum water pipe, pressure and flowmeter, force pump and fluviograph etc. All around and constitute. The utility model discloses the dismouting is simple and convenient, lay the convenience, the excavation coal seam is laborsaving, can simulate low coverage coal seam bao shui mine before the state of water -bearing stratum normal water and rock stratum coexistence, water seepage flow process in the field of crack in the water -bearing stratum of exploitation back to and the water -bearing stratum water -level fluctuation condition, and then confirm different geohydrologic condition different low coverage coal seam guarantor's water coal mining method's reasonable feasibility down.