该项研究为防止矿山井下主溜井、破碎硐室等以及地表产尘量较大的固定尘源污染问题提供了新途径。
It has provided a new way to prevent dust pollution problem at some fixed dust sources such as in main pass, underground crushing chamber and on surface.
本文介绍了金厂峪金矿副并提升系统改造概况和在破碎不稳固的近地表岩体中开挖卷扬机硐室获得成功的经验。
This paper presents the transformation situation of the hoist system for service shaft and the successful experience of driving hoist room in the break and unstable rock mass near to surface.
以某地下铜矿为研究对象，研究了地表要求保护的前提下极破碎矿体的顶板再造上向分段充填采矿法。
Take an underground copper mine as studying object, on which the surface has to be protected, the mining method of sublevel filling method with roof reconstructing is studied.
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