宽孔距小抵抗线微差挤压爆破在石料开采中的应用

Application of Wide-space Small Burden Millisecond Compression Blasting in Stone Exploitation

阐述小抵抗线挤压微差爆破在三峡工程右岸地下厂房开挖块石开采中的试验和应用情况。通过多次爆破试验 ,优化钻爆参数 ,不仅大大提高了爆破效率 ,大幅度降低了工程成本 。

The experiments and its application of wide-space small burden compression millisecond blasting in the exploitation of stone by excavating in underground factory house at the right blank of the Three Gorges Project are described. The multiple blasting experiments and optimization of drilling blasting parameters were adopted to not only remarkably increase the blasting effectivenes and noticably lower the cost of engineering, but also optimize the mined rock size.