The roof control design in mined field is the key to roof control and the movement rule of roof terrane is the basis of the roof control design.
采场控顶设计是顶板管理的关键因素，而顶板岩层的运动规律是采场控顶设计的依据。
According to the studying and acquainting with the direct roof control of Datong mining area, this paper offers a kind of simple and workable classification for direct roofs.
根据作者对大同矿区直接顶板控制的研究和了解，提出了一种简单易行的直接顶分类方法。
The practices showed that the complex roof of C4 seam was effectively controlled. Therefore the roof control problem of the coal mining face under the complex roof conditions was solved.
实践应用表明，C4煤层复合顶板得到了有效的控制，解决了复合顶板条件下回采工作面的顶板控制问题。
With Xiangxi Gold mine as an example, this article describes the mining technology, roof-control procedure, stope-monitoring fo...
本文以湘西金矿为例介绍其回采工艺、控顶技术和采场安全监测、光弹、相似模拟试验及边界元计算的结果。
With Xiangxi Gold mine as an example, this article describes the mining technology, roof-control procedure, stope-monitoring fo...
本文以湘西金矿为例介绍其回采工艺、控顶技术和采场安全监测、光弹、相似模拟试验及边界元计算的结果。
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