Analysis of the stress of mining area and the rules that formed and changed of rock mass in Dongshengmiao

The causing of in-situ stress is very complex,but it is the essential factor in the research of stability of region and stope.Through the analysis of regional stressfield’s evolvement,several distribution characteristics of local stress in mining area is advanced,the rule of formation and change of strata is mastered,the influence that caused by the synchronous fault to the stability of rock mass is researched.