shallow coal seam 浅埋煤层
shallow coal bed 浅埋煤层
shallow coal scam 浅埋煤层开采
shallow coal layer 浅部煤层
shallow coal pillar 浅部煤柱
shallow coal seam mining 浅埋煤层开采
shallow thick coal seam 浅埋深特厚煤层
The mining of shallow coal bed in Shenfu Mine is seriously threatened by suffosion hazard of coal shaft.
神府矿区浅部煤层开采受到矿井溃砂的严重威胁。
The occurrence characteristics of shallow coal seams have the direct influence on the layout of the fully mechanized coal faces and the mining work.
浅部煤层的赋存特征直接影响着综采面布设和开采。
Base on the weighing feature of the shallow coal bed, the specifying method of the support working resistance and safety margin is presented in the shallow coal bed.
依据浅埋煤层矿压显现特征，给出浅埋煤层长壁开采工作面支架合理工作阻力及安全界限的确定方法。
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