礦柱強度 的英文怎麼說
中文拼音 [kuàngzhùqiángdù]
礦柱強度
英文
pillar strength-
Based on the analysis of the evolution of the structural parameters of non - pillar sublevel caving of mines both in and outside china, it is pointed out that increasing continuously the sublevel height is not suitable for application in china because of the limitation of various factors while increasing the access space is the main way to reduce the amount of developing work, reduce the mining cost and increase the one - time caved ore amount so as to raise the mining strength and the labour production rate
分析了國內外礦山無底柱分段崩落法結構參數演變過程后指出，繼續增大分段高度由於諸多因素的限制，在我國並不適宜推廣應用，而增大進路間距卻是減少採準工程量、降低采礦成本、增大一次崩礦量、提高采礦強度和勞動生產率的主要途徑。
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