The external load exerted on the support used in sub-level caving face generally moves forward.
放顶煤工作面的支架外载荷普遍前移。
On the basis of analyzing mechanical situation of floor strata of roadway driving along goaf in fully mechanized sub level caving face, a mechanical model was established.
在分析综放沿空掘巷底板力学环境的基础上,建立了底板力学分析模型。
The research results have been applied successfully in the no. 8105 fully mechanized face with sub-level caving of Yanjiahe Coal Mine, and satisfactory technical and economic effects are achieved.
研究成果在燕家河煤矿8105综放面成功应用,并取得了满意的技术经济效益。
The research results have been applied successfully in the no. 8105 fully mechanized face with sub-level caving of Yanjiahe Coal Mine, and satisfactory technical and economic effects are achieved.
研究成果在燕家河煤矿8105综放面成功应用,并取得了满意的技术经济效益。
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