【摘要】 在对小铁山巷道式充填采矿法巷道掘进效率的调查 ,运用爆破理论对调查结果进行分析总结的基础上 ,提出了几种合理的掘进爆破掏槽方案 ,经过现场实践验证 ,改进后的爆破效率达 90 %以上 ,大大提高了采掘度和采场生产能力。更多还原

【Abstract】 Based on investigation of drifting effectiveness of stoping and filling in Xiaotieshan Mine and analysis of the results invested,several reasonable cut methods are presented.Verified by site operation,improved blasting cut method’s effectiveness is raised to more than 90% and drifting rate,capability are increased greatly.更多还原