Microsegmentation

Using spiral cutting and millisecond subsection blasting,the filling shafts were formed by one blasting.

为安全、高效完成充填井施工工程,采用潜孔钻机施工深孔,以螺旋掏槽和微差分段爆破,一次爆破形成充填井,安全条件好,施工进度快,劳动强度低,作业环境好。