论文部分内容阅读
前言由于金属矿床赋存状态千变万化,人们为了开采各种技术条件不同的矿床,在生产实践中已发展了适宜各种不同技术条件的采矿方法,但也遇到某些条件复杂的矿体,开采比较困难,如矿体倾角在30度至50度之间,矿体厚度3至4米以下,底板不平整,沿走向与沿倾斜变化较大,用普通留矿采矿法同采,矿石不能借自重下放,而用全面采矿法回采,底板坡度又较大,人员在斜坡上作业既不方便又不安全,若架设工作台,环节多,工艺复杂。用爆力
Preface Due to the ever-changing metal deposit status, people have developed mining methods suitable for various technical conditions in the production practice in order to mine various deposits with different technical conditions. However, some complicated ore bodies have also been encountered and mined More difficult, such as the orebody dip angle between 30 degrees to 50 degrees, the ore body thickness of 3 to 4 meters below the floor is not flat, along the trend and along the tilt change larger mining with ordinary ore mining with mining, ore can not be borrowed Decentralization, mining and comprehensive mining method, the slope of the floor and larger, staff on the slopes of work is neither convenient nor safe, if erection of workbench, more links, complex technology. With the explosive force