Regularity of ground rockmass movement induced by backfill mining metal mine
会议名称：《中国科学院地质与地球物理研究所第十届(2010年度)学术年会》
会议日期：2011年
学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程]
基 金：funded by the NSFC project(40972197,40702048) the important direction project of Chinese Academy of Science knowledge innovation project(KZCX2-YW- Q03-02) Grateful appreciation is expressed for these supports
摘 要：Based on a geological investigation and in-situ stress measurements,this paper describes ground movement and the characteristics of ground fissures as a case study in Jinchuan No.2 *** has been put on the analysis of surface movement induced by underground cut and fill mining using the GPS monitoring *** results showed that ground subsidence occurred as the mining depth *** present,the largest accumulated subsidence reached 1287.5 mm from 2001 to *** displacement areas,with large curvature in both sides of a depression centre,were exactly the areas in which the two fissure zones are *** data indicates that the large-scale ground movement has not been avoided absolutely,despite using cement-backfilling ***,ongoing monitoring of ground movement will be particularly useful analyzing deformation mechanisms.