1) Stope safety
采场安全
2) safety grades of mining stope
采场安全等级
3) stope safety span
采场安全跨度
1.
On the basis,the stope safety span and stability time of mined-out area are evaluated and predicted.
通过对白牛厂矿区的工程地质调查、矿岩力学性质试验,选取了表征矿山岩体工程质量的各种指标,获得了岩体工程分类结果——RMR值和Q值,并根据评分结果分别对井下采场安全跨度和采空区稳定时间进行了评价和预测。
4) safety mining
安全开采
1.
Analysis of the mining failure regularity and safety mining of the weak and weathered composite roof;
软弱风化复合顶板采动破坏规律与安全开采分析
2.
The scientized mining technology includes efficient mechanized mining,green mining,safety mining,and mining with high exploitation rate while the scientized mining refers to the one which can realize the coal mining with the highest efficiency on the precondition.
科学采矿是指实现既能最大限度地高效采出煤炭资源而又保证安全和保护环境的开采技术,科学采矿主要包括机械化高效开采、绿色开采、安全开采及提高资源回采率等方面。
3.
Those provide basis for safety mining of coal floor.
从分析煤层底板的裂隙分布出发,建立裂隙岩体的渗流模型,然后应用该模型分析得到的渗流场,采用考虑渗流软化效应的弹塑性有限元方法,分析了煤层开采过程中煤层底板破坏状态,为受煤层安全开采的提供了依据。
5) safe mining
安全开采
1.
The authors introduced the development of China's mining technology of fully-mechanized top-coal caving and clarified fully-mechanized top-coal caving as a productive and safe mining method.
对于高瓦斯煤层进行放顶煤开采,在硬顶煤和硬顶板特殊的地质条件下,必须采取特殊的措施才能安全开采。
补充资料：采采
1.犹言采了又采。
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