漳州二号山体北侧的松动爆破CHAMBER LOOSE BLASTING IN THE NORTH SIDE OF ZHANGZHOU No.2 HILL
陈连进
Chen Lianjin (Fujian Blasting Equipment Industry Company,Fuzhou 350025)
摘要(Abstract)：
福建漳州开发区二号山体北侧松动爆破，因临近３．５万吨级码头，要求爆破产生的最大震动速度必须低于３ｃｍ／ｓ，最远飞石距离在３００ｍ以内。采用不同的爆破作用指数、合理间隔堵塞装药微差分段、精确控制最小抵抗线和药室端部，以及间隙堵塞等措施，取得满意效果。
The north side of No.2 hill in a development area is located near a port of 35000t,and therefore it is required that blasting vibration should not exceed 3cm/s and the flying rocks should be within 300m.The application of different crater index,rational deck charge and millisecond blasting and the precise control of burden,chamber end and spacing stemming have presented a satisfactory result of the chamber loose blasting.
关键词(KeyWords)：
微差爆破，松动爆破
Millisecond blasting Loose blasting
基金项目(Foundation):
作者(Author):
陈连进
Chen Lianjin (Fujian Blasting Equipment Industry Company,Fuzhou 350025)