Mining-induced fractured rock mass water sand transportation testing system and monitoring method

The invention discloses a mining-induced fractured rock mass water sand transportation testing system and a monitoring method. The mining-induced fractured rock mass water sand transportation testing system comprises a support which is provided with a testing bin; the testing bin comprises an upper bin body and a lower bin body; a plurality of pressure sensors are uniformly configured in the upper bin body; a plurality of pore water pressure sensors are uniformly configured in the lower bin body; a sand layer is laid in the upper bin body; rock layers with different lithology and lumpiness are laid in the lower bin body; when a top plate moves downward, the loose sand layer and the rock layers are compressed gradually; a crisp epoxy resin water-stop plate also moves downward; the tip end part of a fracturing rod fractures the crisp epoxy resin water-stop plate, so that the upper bin body and the lower bin body are communicated. The transportation and gush simulation test of a water and sand mixture in fractured rocks can be carried out; water and sand transportation parameters of different ground layer combinations can be obtained; the reliability of characteristic recognition of gushing water and crushed sand disasters at a working surface induced by coal mining is improved.