The Study about Hole Distance Calculating Method of Wide-Space Bench Blasting
The technology of wide-space bench blasting has been more and more applied to blasting engineerings of conservancy, hydropower, mining, highway and railway, but at the stage the design of hole distance of wide-space bench blasting is mainly used analogy method and site testing method, there is no precise calculation formula for reference. According to this situation, this paper puts forward the calculation formula of hole distance, which is based on the analysis of the physical process of rock destroyed by blasting, and combined with engineering examples of wide-space blasting at home and abroad, compares the hole distance that is calculated by formula with the hole distance adopted by practical engineerings that have received good blasting results ,the degree of match between the two is over 95%, remedying the defects of the study how to calculat hole distance of wide-space blasting.
Brendan Gan, Yu Gan and Y. Yu
S. L. Dai and Y. Cheng, "The Study about Hole Distance Calculating Method of Wide-Space Bench Blasting", Advanced Materials Research, Vols. 378-379, pp. 3-6, 2012