谢续文
Xie Xuwen(Changsha Mining Research Institute,Changsha 410012)

• 1:长沙矿山研究院

摘要(Abstract)：

深圳盐田港西山沟口大沟槽采用导爆管雷管孔外延时起爆和沟槽渐进开挖布孔方式相结合进行一次爆破开挖，满足了快速、安全成沟要求。它的顺利施爆，为今后沟槽爆破提供了一种高效、安全、低成本的新方法。
Once-blasting excavation of large ditch has been carried by means of out-of-hole delay detonation of Nonel detonator combined with the hole pattern of gradual-advancing excavation of dicth at Xishan Mouth in Shenzhen Yantian Harbour,and the quick and safe excavation of ditch has been obtained. This successful blasting provides a new method with high efficiency,safety and low cost for the ditch blasting in the future.

关键词(KeyWords)： 沟槽爆破，孔外延时，渐进开挖，一次开挖
Ditch blasting Out-of-hole delay detonation Gradual advancing excavation Once-excavation

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作者(Author): 谢续文
Xie Xuwen(Changsha Mining Research Institute,Changsha 410012)

参考文献(References)：

• 1冯叔瑜等．城市控制爆破．北京：中国铁道出版社，1987．2孙金华，郦江水．覆铜壳雷管底部破片速度测试．爆破器材，1993，（1）．