【作者】 孙长寿； 方祖烈；

【Author】 SUN CHANGSHOU FANG ZULIE (UNIVERSITY OF SCICNCE AND TECHNOLOGY BEIJING)

【机构】 北京科技大学；

【摘要】 本文采用赤平投影分析法对巷道工程中关键块体的稳定性进行了直观、有效地分析。对关键块体的支护作了深入地研究,提出了快速高效的压双筋条——组合锚杆支护体系。这种支护体系在西石门铁矿的应用中获得了很好的效果。更多还原

【Abstract】 In this paper,author effectively analyses key blocks in excalations by analytical method of spherical projection,deeply researches how to support key blocks and finally proposes the system of supporting key blocks in which a group of bolts and the double—steel-bars are used.This system of supporting key blocks used in Xi Shimen Iron Mine and has got a good result.更多还原