摘要
光面爆破是井巷掘进中的一种先进爆破技术,它是控制爆破中的一种方法,目的是使爆破后留下的井巷围岩形状规则,符合设计要求,具有表面平整,损伤小,稳定性好。光面爆破只限于断面周边一层岩石(主要是顶部和两帮),所以又称为轮廓爆破或周边爆破。它具有减少超挖、成形好、围岩稳定性好、提高井巷施工进度、降低巷道支护成本等优点。
Smooth blasting, one method of the controlled blasting, is an advanced blasting technology in the shaft and dritt excavation, and is intended to have regular surrounding rock which meets the design requirements and owns even surface, small damage and good stability ＇after the blasting. It is limited to oue layer of the rock surrounding the cross section （ mainly the top and two sides）, and is ＇also called contour blasting or perimeter blasting. It has such merits as over - break reduetiun, good forming, good stability of surrounding rock, the improvement of the drilt construction progress, cost reduction of workings supporting, and etc.
出处
《山东煤炭科技》
2012年第6期16-17,共2页
Shandong Coal Science and Technology
关键词
光爆
管理
岩巷
快速
掘进
smooth blasting management stone drift speediness and tunneling
