| The methods of mining is the core content of mining production and construction. To find the safe ,highly efficient ,low loss and low cost methods is urgent. Which is crucial to enhance economic efficiency and reasonably lay out and realize sustainable development.This thesis aims at resolving problems those occur in mining 13-2-3# mineral in Laochang Tin Ore Mine and realize the aim of enhancing production competence and technical-economical indexes and cutting production cost by analyzing ,researching, optimizing, progressing, summarizing the methods of mining ,detonation parameters of medium-length hole ,blasting methods and related engineering design in such respects as professional technical theories ,industrial experiments and arrangement of project management and so on . |
PDF Full Text Request