摘要
在石方路堑开挖施工中 ,采用硐室加预裂一次爆破成型综合爆破技术 ,可以解决以往硐室爆破难以解决的边坡稳定和边坡质量问题。这项技术能有效地改善主体石方爆破效果 ,降低工程成本 ,同时达到不清底不刷坡一次成型目的。文中介绍了设计方法和施工工艺 ,并概述了一次成型综合爆破技术的机理 。
In excavation of rock cut,the blasting technology combined chamber blasting with presplit blasting for once through shaping of slopes can be used for well solving the problem on the stability and quality of a slope which is difficult to be solved by use of conventional chamber blasting in the past This technology can effectively improve the blasting effect to dominant rock excavation,without clearing of slope toe and leveling of slope front,thus lowering the cost of the project In this paper,the design method and constructing process are introduced and the mechanics of the combined blasting technology is outlined In addition,the influence of geological discontinuities on blasting effect and the impact of the presplit fissure's width on once through shaping of slopes
出处
《工程爆破》
2003年第1期43-47,21,共6页
Engineering Blasting
