1000 Jiaping Vanadium Ore Stope Stability Analysis

In mining engineering of underground mining belongs to high-risk operations. The stability of slope or not, directly related to mining process in the safety of personnel and equipment. If the different of mining geological structure, occurrence condition are not the same, The treat governance slope stability situation is different too. This thesis Discuss the problem of Slope stability. In Qianjia Ping vanadium deposit Huayuan Shaanxi LLC for the experiment slope of 845m background, After mine field sampling and corresponding rock indoor mechanics experiments, find out the main orebody, mechanical parameters of surrounding rock by classical load after theoretical calculation of ore mining depth known, the minimum width room tiberium spikes and the mechanism analysis theory analysis by mutations in the width of instability recovery ore room.Using ANSYS software is built with mine slope structure experiment two similar between column, the three-dimensional numerical model, different into FLAC3D finite difference software, adopting Moore - coulomb failure criterion calculation. Mainly simulates the recovery, in ore room slope gravity conditions, the stability conditions. Analyze the maximal principal stress and Z direction stress and Z direction displacement of calculation results. Compare with three kinds of parameters of the two models, it is concluded that the cloud is not the same in the column width between similarities and cultures.Establish a suitable for the features of ground pressure monitoring network system and smooth completion of the monitoring system arrangement. The system includes vibration string type borehole stress meter, multipoint displacement plan and convergence plan, combining several methods of comprehensive utilization. In underground complex environment, can understand the stress changes extraction process, guarantee mining safety, and can handle the tiberium spike, roof with existing security firm, ensure mine sustainable development.Hope that this research project has certain instructive significance for operations in Shaanxi Huayuan LLC Qianjiaping vanadium ore mining...