On-Site Measurement on Surface Disturbance Law of Repeated Mining with High Relief Terrain

Underground coal mining in high relief terrain often causes problems such as ground collapse and mountain sliding. This produces disasters landslides, which seriously endangers the ecological environment human settlements area a series of public security events. To improve solve related problems, it is necessary to master impact law underground on surface. Therefore, taking working face 1310 Jincheng industry an example, this paper adopts new improved RTK measurement technology for field analyzes surface disturbance by using data. The results show that under action repeated areas, there sudden subsidence flat bottom moving basin, strike influence scope small, dip downhill direction larger, horizontal movement curve loses its antisymmetry, left-right symmetry. Through analysis, found reverse slope weakens original reduces range mining. On contrary, enhances disturbance, expands mining, flattens deformation curve. Research can provide technical reference formulation implementation environmental remediation treatment technologies areas similar conditions.