摘要
依据巷道特点,针对原有爆破设计存在的缺陷,提出了新的掏槽形式和爆破参数。通过对原有爆破设计的优化,使得循环进尺由原来的1.3 m提高到2.0 m,周边眼痕率也达到70%以上,取得了良好的经济效益。
Based on the characteristics of tunnel, aiming at the existing defects of the original blasting design, put forward a new cutting and demolition parameter. Through the optimization of the original design of blasting, the cycle drilling length increases from 1.3 m to 2.0 m, peripheral hole mark rate can reach more than 70%, has obtained the good economic efficiency.
出处
《煤炭技术》
CAS
北大核心
2015年第4期82-84,共3页
Coal Technology
关键词
深井岩巷
掘进
光面爆破
爆破参数
优化
deep rock roadway
drilling
smooth blasting
blasting parameters
optimization
