In this paper, an efficient and suitable testing method for evaluating the safety properties of the BMH bulk safety explosive for sulphide ore mining is presented.
本文介绍的是一种对BMH型硫化矿用散装安全炸药的研究非常有效、适用的安全性能检测方法。
In construction projects, such as mining engineering, communications and transport engineering, hydroelectricity and water conservancy engineering, rock mass slopes exist in bulk.
在矿山开采，交通运输和水利水电等建设工程中，大量存在着节理岩体边坡，其稳定性对工程实施有至关重要的影响。
Coalface of Daizhuang Coalmine, the authors believe that the roof in lower seam will form the "block-bulk-beam" structure easy to fall after the mining of top ultra-close seam.
通过对岱庄煤矿4300采区工作面的顶板结构分析，得出了上部极近距离煤层开采后，下部煤层顶板形成极易漏冒的“块体-散体-梁”结构。
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