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采场冒顶
释义
采场冒顶
Encyclopedia
工学
矿井地压灾害
释
roof strata collapse of working face
采场冒顶
采场或巷道等地下空间上部岩体或矿体与原始岩层或矿层脱离,并在重力作用下垮塌、塌落、陷落的过程或现象。简称冒顶。是地下矿山常发、多发灾害之一。
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portrait brick of wine shop
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portrait in the News
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portrait of Guanyin in bluish-white ceramic
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portrait of the goddess and the lady of the Xiang
portrait of the King Miaozhuang of the Sansheng Opera Troupe in Xihe County
Portrait of Yang Zhuxi
Portrait of Yang Zhuxi by Wang Yi
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Portrait Painting
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