STUDY ON THE HEIGHT OF WATER FLOWING FRACTURED ZONE FORMED BY SHALLOW COAL MINING IN YU-SHEN-FU MINE AREA OF NORTH SHAANXI PROVINCE AND ITS ENVIRONMENT-ECOLOGY SIG-NIFICANCE

Based on the study of the overlying strata engineering geological properties and structure types of shallow buried opal in Yu-Shen-Fu mine area of north Shaanxi province, with empirical formula and FEM, as well as GIS technology, the height of the water flowing fractured zone formed by the shallow buried coal mining in the studied area is predicted. The losing water area and environment-ecology effected by the coal mining is analyzed. This research result has a general significance to guide the coal resource exploitation in the arid-semiarid area of northwest China.