Research on impact of coal mining on safety of important cultural relics

As the easily mining resources are being increasingly depleted, it is very urgent to mine coal under buildings, water-bodies and railways. The rational exploitation of coal resource under the premise of the security of constructions and infrastructures etc. is a major practical problem. Taking Zhengjiazhuang colliery for example, based on former research results, a 3D geological model in the study area has been firstly established by the ROCK MODEL software which is developed by authors. Secondly, several mining schemes have been analyzed by probability integral method and numerical simulation method; and the optimal mining scheme is chosen on the basis of synthetical factors such as protection of cultural relics, geological conditions and mining designs etc.. Then the impacts of two-zone developing height overlying the mining face, the faults and mining fractures on the drainage of shallow aquifer near the surface and survival of famous and ancient trees have been analyzed by synthetical methods. Finally, specific protection measures are proposed.