复杂环境下中深孔爆破在石质路堑开挖中的应用

结合工程实例,针对在复杂环境下单响药量控制严格及高速公路路堑爆破开挖的特点,研究了中深孔控制爆破与预裂爆破和毫秒延时爆破相结合的综合爆破技术,重点介绍了毫秒延时爆破毫秒延期时间间隔的确定,确保安全振动一次齐发起爆药量的确定方法,以及安全校核等技术问题。

Application of medium - length pole blasting in complex environment to excavation of stone-cutting

This article examines the comprehensive blasting technique combined control blasting with pre-splitting blasting,and milli-second delay blasting,from a case of project in view of the strict control of explosive charge demand for one detonating,the features of excavation of expressway cutting by blasting,with emphasis on the determination of the extended time interval for milli-second delay blasting,the explosive charge demand for one detonating blasting,to ensure the safety vibration,with discussion on problems including the technique for safety check.