无底柱分段崩落法应进一步研究的几个问题

SOME CRITICAL ISSUES IN APPLICATION OF PILLARLESS SUBLEVEL CAVING METHOD

本文分析了目前无底柱分段崩落法应用中存在问题 ,指出了应对覆盖岩层的自然分级、崩落体形态以及放出体———松动体———崩落体三者关系进一步深入研究 ,强调把放矿与爆破作为一个有机整体进行综合研究 ,对于优化结构参数 ,降低矿石损失贫化 ,提高矿山经济效益具有重要意义。

Some critical issues in application of pillarless sublevel caving method are analysed.Further research should be done to natural classification of capping rock;shape & form of breaking-down rock;relationship between drawing-out rock,loose rock and breaking-down rock.To optimize the structural parameters,reduce ore's dilution rate and increase mine's benefit,it is of great importance that the drawing operation andblasting operation are studied as a complete unit.\;