Blasting design method suited to given specific charge

摘要

PURPOSE: A blasting design method suitable for given specific charge is provided to achieve desired blasting effect by properly determining specific charge according to section. CONSTITUTION: A blasting design method suitable for given specific charge is as follows. According to predetermined total volume of rock to be blasted and predetermined volume and total specific charge for each section, the following equation is satisfied. C=Q/V=Qi/Vi=(V1C1+V2C2+...+VnCn)/(V1+V2+...+Vn)= ViCi/Vi, where C is the total specific charge of the whole blasting area, Q is the total amount of gun powder used for the whole blasting area, V is the total volume of rock to be blasted, Vi is the volume of one of n split sections of the rock to be blasted, and Ci is specific charge for each split section.