Study On Mining Subsidence Laws And Protection Management Methods Of Surface Structures And Buildings In Liuzhi Mining Area

With the rapid development of economy, people pay more attention to environmentaldamage caused by large-scale exploitation resources. In order to achieve sustainableeconomic development of the mining area, how to get effective measures to protect theenvironment and use the resource is a primary problem which must deal with.The geologicalstructure, coal seam condition and overlying rock structure of LiuZhi mining area in Guizhouare special and complex, so the surface movement and deformation due to coal mining has itsparticularity. Analysis of the law and characters of surface movement and deformation deeply,the paper determines the appropriate protection methods of surface bulidings,and giveeffective disaster prevention caused by mining subsidence.It is a urgent problem which mustbe solved in order to realize sustainable development in mining area.In this paper, based on theoretical analysis of mining subsidence, and the example ofLiuZhi mining area in Guizhou, by means of on-site observations and surveys, it analyzes themain factors which impacts mining subsidence and surface deformation andmovement of the main factors. Set1477working face of LiuZhi mining area in Guizhou as aexample, in according to the observed datas,the paper analyzes the characteristics of surfacemovement and deformation of dynamic distribution in main section, and get the basic law ofthe surface mining subsidence.Based on the Expected parameter optimization of probabilityintegral method,the paper uses error analysis method to validate the applicability ofexpected surface movement an deformation used by probability integral method,and itdetermines prediction model methods of mining subsidence in LiuZhi mining area.Appliedresearch results, the calculation method of security pillar is determines in mountain regionof mining subsidence.Based on the subsidence damage characteristics of buildings, thecomprehensive program and management measures of mining subsidence are gived in LiuZhi mining area...