Numerical simulation of the analysis of possibility of water inrush through fault;

Solid-liquid coupling study on water inrush through faults in coal mining above confined aquifer;

Took 38 water samples from four of the main pouring water aquifers in the mining area in northern Anhui such as Linhuan Mine, Haizi Mine and so on, analyzed the content of the radioactive isotope tritium, and drew the content of tritium isoline figures about the fourth aquifer, the Taiyuan limestone aquifer and the Ordovician limestone aquifer.

Distortion and failure character of excavation slope in approximate level red beds;