摘要
针对广西大厂矿务局铜坑锡矿细脉带分段空场法采场，用爆破模拟的方法，从爆破动载作用角度提出了保护矿柱的技术措施：利用波的干涉效应降低爆破震动强度来减轻矿柱受损程度；采用Ｖ形或大孔距小抵抗线布孔方式降震以保护矿柱；选择孔底空气间隙装药方式使矿柱壁破坏最小。
Abstract In regard to the Toughen Tin Mine of Dachang Mine Bureau in Guangxi Province where the sublevel-open stoping method is used for the fine vein and by way of blasting simulation,technical measures have been suggested for protecting the ore pillars from the viewpoint of the blasting dynamic load function. The measures include: to use the interference effect of the stress wave to reduce the vibration strength by the blasting. so as to lighten the pillar damage ito apply the hole patten of V-type or large hole space and small resistance line to reduce the vibration in order to protect the pillars land to select the air-gap explosive loading at the hole bottom so that the rupture of the pillar walls can be minimized.
出处
《金属矿山》
CAS
北大核心
1994年第3期15-19,共5页
Metal Mine
