Chinese core journals in science and technology
Chemical Abstracts Service (CAS) database
EBSCO Academic Database in the United States
Japan Science and Technology Agency Database (JST)
According to the occurrence conditions of the ore body in Baoshan Jinchanghe Lead-Zinc Mine,the technical scheme of raise construction is selected.The applicability of general drilling and blasting method,shaft sinking in single time blasting,shaft sinking by VCR method and raise drilling rig method is analyzed.Based on the com-bination of qualitative and quantitative evaluation methods,each shaft sinking method is evaluated,and the comprehensive score is obtained according to economic comparison,quality comparison,progress comparison and safety comparison,finally the optimal scheme is determined.The main ore pass,ore passes in mining districts and stopes adopt shaft sinking by raise drilling rig method,the stope cutting shaft is blasted by VCR method,and the air return shaft is blasted by general drilling and blasting.According to the use of different vertical shafts,different shaft sinking techniques are flexibly adopted,so that the engineering application effect is relatively good.