摘要
在路堑开挖石方施工中,采用挤压爆破技术及强行拉槽双向挤压爆破技术控制爆破飞石，爆破块度及震动。实践证明，实施这种爆破方法，块度均匀、大块率低，比普通爆破均匀度指数提高6％，通过工程实践给出了合理微差时间及有关挤压煤破参数。
This paper discusses the control of flying rocks, lump size and vibration of extruding blasting in cutting excavation. It is proved that the lump are more uniform, theoversized lump ratio is lower, the index of uniform is enhanced 6％ than common blasting.The reasonable delay time and the parameters of extruding blasting are offeredthrough the practice.
出处
《爆破》
CSCD
1998年第3期29-32,共4页
Blasting
