文章摘要信息 关键词 ： 厚冲积层；厚煤层；分层开采；开采上限；安全煤岩柱 [gap=699]Keywords : thick alluvium；thick coal seam；slicing mining；mining upper limit； safety pillars
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thick-alluvium 厚冲积层
deep thick alluvium 深厚冲积层
special thick alluvium 特厚冲积层
extremely thick alluvium 巨厚冲积层
deep and thick alluvium 深厚冲积层
thick alluvium covered area 冲积覆盖层
After applying cover rock supporting plate theory, the damage patterns and intensity and stiffness damage criteria are calculated and analyzed under the condition of thick alluvium and hard solid rock.
应用覆岩托板理论计算分析了厚松散层厚坚硬岩层条件下托板的破坏形态及强度、刚度破坏准则。
参考来源 - 厚松散层厚硬岩层开采地表移动变形规律研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The freezing method became the preferred shaft sinking method when constructing in thick alluvium and unstable aquifer.
冻结法已成为深厚冲积层及不稳定含水层的首选施工方法。
The mine construction technology in deep and thick alluvium associated with the practical situation of Juye Zhaolou mine are talked about and summarized in this paper.
本文结合巨野矿区赵楼矿井实际建设情况对深厚冲积层建井技术进行了探讨和总结。
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