摘要
在不良地质条件下用反台阶法进行引水隧洞的开挖。利用自制的小直径低爆速XD药卷进行了光面爆破试验。结果表明,使用XD光爆专用炸药,减少了爆破对保留岩体的破坏,隧洞成型良好,半孔率超过80%。文中介绍了XD炸药的性能,并与瑞典诺贝尔公司古立特小直径炸药性能进行了对比。此外,阐述了爆破参数、爆破效果以及取得的经济效益。
The pilot tunnel method w as used for excavation of a divers ion tunnel in poor geology conditi ons Using self made,small diameter and low velocity XD pipe explosive ,smooth blasting tests were conduc ted The testing results show that the damage of blasting to remainin g rockmass is reduced with even tu nnel contour and a half cast facto r of over 80% when using special X D explosive for smooth blasting In this paper,the performance of XD e xplosive was introduced and compar ed with that of small diameter Gur it explosive produced by Nitro Nob el Company in Sweden In addition,t he blasting parameters,blasting ef fect and the obtained economic ben efit were expounded
出处
《工程爆破》
2003年第2期49-52,共4页
Engineering Blasting
