No. 1 Orebody. Abundance Of The Southern Part Of The Copper Deposit Stope Optimization Of Structural Parameters And Mining Sequence Study

The Fengshan Copper has been adopted underground mining instead of surface mining,so it is important to make structural parameters and mining order in order to mine underground mineral Resources safely and effectively. This thesis use the method of three-dimension finite element numerical simulation to research. This method has been widely used in the field of geotechnical engineering and underground mining is an important branch of geotechnical engineering. what this thesis discuss is how to use this technology to solve the optimal research of stope,a special kind of underground engineering,thus to exploit and employ the underground mineral resources at the maximum and be security and efficiency at the same time.This thesis mainly combines the practical mining circustances of Fengshan Copper's south deposit, and research on different mine room,pillar and different mining toward effect about stope's security and stability by using ANSYS numerical simulation software. The main contents of the research include the following:(1) This thesis collected Fengshan Copper Mine's information about Mining geology,Conditions of ore occurrence,the status quo of mining,development form,mining methods。(2) This thesis Summarized the history,current situation and development trend of the domestic and abroad research about structural parameters of stope and optimization mining order and pointed out the necessary and urgency of structural parameters of stope and optimization mining order.(3) This thesis analysed the data of mechanical parameter of rock and combine practical condition of ore-rock, calculate the mechanical parameter of rock by reduction, these supply the basic data for follow-up research.(4) This thesis used ANSYS software to found the numerical simulation model of twelve different parameters of southern deposit NO.1 orebody, and analyse the stress and displacement of ore-rock that under different structural parameters of stope, and then determine the most reasonable structural parameters of stope:mine room 10 m, pillar 6 m.(5) This thesis found four different mining order model on the base of certain structural parameters of stope. After simulation Analysis of them, it comes out that the most reasonable mining order is recovering from one side to another side.(6) This thesis Summarized the research this thesis refer to that about structural parameters of stope and optimizing the mining order, and advanced it will be a very important topic in the research about this area.This paper has a certain practical significance for guiding Fengshan Copper to determine reasonable structural parameters of stope and mining order. The Methods and results of research can also provide reference and refers for other mines solving similar problems in the technical reform and technical updating.