The Study Of The Rule Of Underground Pressure Activity And Optimization Of Stoping Sequence In The Deep Mining Of JiaShandian Iron Mine

After years of mining,the mining operation site and development works of the Wuhan Ironand Steel Group Jinshandian Iron has conducted in the deep orebody now. Ground pressure alsocontinued to increase with increasing depth of mining, which has conducted great difficulties indeep ore mining, in order to achieve safe and efficient mining progress, it is necessary to studythe relationship between Deep Mining and underground pressure activity, the research thatreasonable Mining sequence optimization is used for obtaining，the good effect of the stressdistribution.in order to making sure deep mining successfully.In this paper, which is based on engineering geological investigations，the numericalsimulation model of Jinshandian Iron is been built through FEM software. In the course of thestudy,According to the Rock Mechanics strength test results, with the Geological Survey in thepast for engineering geological analogy and empirical coefficient Reduction, the simulation ofrock mechanical parameters is access. combined with the basic characteristics of the Sublevelcaving to pressure activity, the research of stoping block in-514m level is done in order toanalysis the effect on pressure law and stress state of deep mining stope and the surrounding rockduring depp mining. At the same time, in the face of the deep mining high pressure environment,combined with Actual situation in mine，which put forward orebody stoping program in-500to-600m level. By contrast and analysis of the safety factor of the stoping process ore and stopeprincipal stress，the reasonable Mining sequence optimization is put forward, Finally,Based onthe influencing factors for deep mining safety and possible disasters at work, the deep miningsafety measures and recommendations been proposed, the tule of mining pressure activity andMining sequence optimization, which has a certain reference value in the safety deep mining,theconclusions and recommendations of the research is helpful for Jinshandian Iron deep mingingof safe and efficient.