How to correctly understand the problem of deep mining with increasing the depth, it is key to resolve practical mining.
如何正确认识由于开采深度增加所带来的问题，是解决实际问题的关键。
Mining in deep mine generally refers to the mining technology apoted for mining the specific depth coal that is apart from surface.
深矿井开采一般是指为开采距地表特定深度的煤炭而采取的开采技术。
With the increasing depth of coal mining in China, there is an immediate need to improve the strength and durability of high performance concrete used in deep topsoil mine shafts.
随着我国煤矿开采深度的不断加大，对深厚表土层立井井壁所使用的高性能混凝土的强度、耐久性等性质的要求也越来越高。
Along with mining depth becoming deep and coal output increasing, the gas discharge increased, and gas problem of primary mining in coal face becomes important.
随着采煤深度的下延和产量的加大，瓦斯涌出量逐步增加，采煤工作面初采期间的瓦斯问题越来越引起重视。
With the increase of mining depth, the underground heat harm becomes more serious. Especially for deep shaft conditions, the temperature lowering has become a very important content in safety work.
随着矿井开采深度的增加，井下的热害日趋严重，尤其对于深井条件下，降温工作就成了安全工作极为重要的内容。
The definition of deep strip mining and reasonable mining depth are discussed and determined.
探讨了深部条带开采的定义以及合理的开采深度范围。
Based on the background of deep mining, some conclusions related to effects of temperature and confining pressure on behaviors of deformation and failure of rocks at depth are reviewed.
以深部开采为背景，讨论了温度和压力对深部岩石变形和破坏规律的影响。
With mining depth increasing continuously in our country, in condition of mining in the deep-lying, there are many problems in determining displacement Angle of stratum at present.
随着我国煤矿开采深度的不断增加，指出了目前岩层移动角的确定存在诸多问题。
With the mining depth increased, the stability control of the deep soft rock chamber group became a difficult problem in the engineering industry at home and abroad.
随着矿井开采深度的增加，深部软岩硐室群稳定性控制已成为困扰国内外工程界的难题。
With the mining depth increased, the stability control of the deep soft rock chamber group became a difficult problem in the engineering industry at home and abroad.
随着矿井开采深度的增加，深部软岩硐室群稳定性控制已成为困扰国内外工程界的难题。
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