The paper described the development plan, the selection of seam location and the arrangement methods of main roadway in Jinchang Coal Mine from the designing aspect under present geological condition.
在现有矿井地质条件下，从设计方面论述了晋昶煤矿的开拓方案、选择大巷层位及设计大巷布置方式。
The main factor causing destruction of roadway in tectonic stress field is found to be the high tensile strain, which appears after the coal seam above haulage roadway is mined.
提出在构造应力场中，开采运输巷道上方的煤体使巷道产生拉伸形变是巷道破坏的主要根源。
The main factor causing destruction of roadway in tectonic stress field is found to be the high tensile strain, which appears after the coal seam above haulage roadway is mined.
提出在构造应力场中，开采运输巷道上方的煤体使巷道产生拉伸形变是巷道破坏的主要根源。
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