The Ytc Tong Sub-concave 31-1 ~ # The Optimization Of The Ore Body Mining And To Pressure Management

Numerical analog analysis technique has been widely applied to geotechnical engineering. This paper has exactly discussed how to solve optimizing problem of mining engineering which is special underground engineering by means of this technique, for fully realizing the economic and social benefits, in condition of guaranteeing safety.In consideration of the mining technological conditions of TangZiAo's 31-1# body of Tin Corporation of YunNan, pillared stope method in the paper, three-dimensional finite element and Distinc element numerical analog analysis technique is used to optimize extractive sequence and the stope structure parameters, The study has been done in stability of the roof and pillar and the influence range and degree of mined-out areas sag. In this way, the stability analysis of rock wall is made systematically and completely and provid the way of management of the pressure in the earth's crust ,which has provided reliable basis of guiding mine production.