Determination on Unit Explosive Consumption of Drilling and Blasting Method Construction for Limestone Surrounded Roadway

Unit explosive consumption is an important parameter for the design of blasting chart,the paper studied the reasonable explosive consumption in borehole- blasting method construction of limestone surrounded roadway,respectively using relevant parameter calculation,quota look- up table method and arrangement sequence calculation. And the results show that the explosive consumption is in the range of 1. 987 ~ 2. 7kg. The study could provide basis for the determination of material consumption quota and provide references for similar projects.