根据在蚕庄金矿的实践，本文叙述了开采厚度大，矿岩破碎的蚀变岩型金矿床的新方法。
According to the practice made in Can-Zhuang gold mine, this paper made a description on the new method to mine the altered rock type gold deposit of big thickness of broken orebody.
综合分析了开采深度、煤层倾角、煤层开采厚度、工作面斜长等地质采矿条件对底板采动导水破坏带深度的影响。
This paper analyzed the influence of mining depth, coal seam dip, mining height and face length on depth of floor water-conductive fissure zone.
银矿体具厚度大，埋藏浅，易开采的特点。
They are charactered by large thickness, shallow burial and easy mining.
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