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难采矿体采准巷道的支护刘斌（东北大学）１前言所谓难采矿体，系指矿体形态复杂、矿岩松软破碎、采场地压大、巷道破坏严重、开采十分困难的矿体。具有难采矿体的矿山，由于开采条件差，迟迟不能达产，采准巷道的破坏严重影响采矿生产正常进行。如玉石洼铁矿、张家洼铁矿...
Difficult mining quarry roadway support Liu Bin (Northeastern University) 1 Preface The so-called difficult mining body, refers to the complex ore body, rock loose soft crushing, mining site pressure, serious destruction of roadway, mining very difficult ore body. Due to the poor mining conditions, the mine with hard-to-dig ore body can not reach the end of production. The destruction of the roadway that is quasi-approved seriously affects the normal mining operation. Such as jade Wa Wa iron ore, iron ore Zhangjiawa ...