2) project opencast & underground mining
露天-井工联合开采
4) combined mining
露井联采
1.
Simulation research on the slope failure of horizontal thick coal seam under the condition of combined mining;
露井联采模式以前一直被金属矿山和浅埋倾斜煤层矿山的开采所采用,以往我们在开采浅埋水平厚煤层一般均采用露天或井工方法。
2.
Mechanism of the slope failure of horizontal thick coal seam under the condition of combined mining;
通过数值和相似材料模拟2种方法对露井联采下露天边坡的破坏过程进行了研究,结果显示,露天边坡的破坏是一个渐进的过程,决定开采安全的主要因素为露天与地下开采的边界垂直安全高度。
6) open-underground combined mining
露井联采
1.
The primary damage will evolve after mining under the slope if open-underground combined mining is carried out.
露天煤矿边坡是具有大量节理分布的初始损伤体,露井联采条件下的井工开采将使其上边坡体的初始损伤进一步演化。
补充资料：井工开采(见地下采煤)
井工开采(见地下采煤)
underground mining:see underground mining
井工开采采煤。underground mining见地下
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条