关键词:窄槽;预裂;缓冲;梯段;布孔 [gap=475]Key words: narrow groove; presplitting; buffering; step; hole distributing
基于20个网页-相关网页
层状复合岩体中岩层性质的差异常常导致预裂爆破效果不理想。
The rock property difference of bedded composite rock often does not lead to ideal Pre-splitting blasting effect.
在预裂爆破试验中，采用双因素试验方法，减少了试验的工作量。
During blasting test of rock split in advance using Double Factors test method, the work is reduced and predigested.
最后，对使用宽孔距的预裂爆破所产生的经济、社会效应进行了评价。
Finally, the economy, the social effect were used to appraise the pre-splitting blasting with wide pitch of holes.
应用推荐