coal-seam stability

常見例句

The stability of goaf-side roadways depends on not only the abutment distribution, but also the fracturing degree of the coal seam and rock strata alone the pillar width.
一側采空巷道穩(wěn)定性不僅與支承壓力分布有關，而且與煤體受破壞程度有關。
It was succeeded in practical application. It is an useful exploration for the roadway stability control of fully-mechanized top-coal caving long-wall face in soft and thick coal seam.
并成功進行了實踐應用，為進一步完善松軟厚煤層長壁綜放工作面順槽穩(wěn)定性控制理論技術體系進行了有益探索。
In order to control the surrounding rock mass stability of fully mechanized large cutting height face in extremely-soft coal-gas burst thick seam effectively, stepped mining technology was presented.
基于對極軟突出厚煤層大采高綜采工作面端面煤巖穩(wěn)定性的有效控制，提出了臺階式采煤工藝，采用臺階式割煤方式；用數(shù)值模擬分析了臺階式割煤的防片幫機理。