It is one of the important research projects in the field of controlling water-inrush from roof that the calculating method of water flowing fracture height caused by coal mining.
煤层开采所引发的上覆岩层导水断裂带高度的计算方法是矿井顶板水害防治中的重要研究课题之一。
It is one of the important research projects in the field of controlling water-inrush from roof that the calculating method of water flowing fracture height caused by coal mining.
煤层开采所引发的上覆岩层导水断裂带高度的计算方法是矿井顶板水害防治中的重要研究课题之一。
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