Through adpting U-steel bolting with wire mesh in 21 dip of Lugou coal mine, condition of roadway supporting is improved, technological and economic results are gained.
芦沟矿21采区下山通过采用U型钢-锚网支护，改善了巷道支护状况，取得了明显的技术经济效益。
The bolting with wire mesh is commonly used actual mining roadway of the thick coal seam, and in some cases the cabling reinforcement should be considered.
采用锚网支护方式维护厚煤层放顶煤沿底回采巷道时，多数需要考虑锚索加固问题。
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