drift mining 中文意思是什麼

drift mining 解釋
導洞開采
  • drift : n 1 漂亮；（潮流的）推進力。2 漂流物；吹積物；堆積物；【地質學；地理學】冰磧，漂礫。3 傾向，趨勢...
  • mining : n 1 采礦，采礦業，礦業。2 敷設地雷[水雷]。adj 開礦的，采礦的。 a mining engineer 采礦工程師。 min...
  1. Application of caving mining technology with bottom under condition of flat dipping mid - thick body and unstable rock caused the most of trench and bottom drift, located in abutment, to be destroyed and low recovery in south area, xishimen iron mine

    摘要在緩傾斜中厚礦體底板巖性不穩固的條件下，採用有底柱崩落法，由於電耙道大多處于空區邊部應力集中的部位，致使塹溝及底部結構巷道破壞嚴重而使回收率極低，採用無底柱崩落卸壓則可有效解決上述難題。
  2. According to the actual condition in jinchuan longshou mine, using three - dimensional numerical simulation, this paper analyzes the stresses, displacements and safety factors of mined - out area and filling body under the conditions of different filling height of down hexagon drift, and the drew conclusions provide theoretic guidance for safety mining

    結合龍首礦的實際情況，利用三維數值模擬的方法對龍首礦下向六角形大斷面進路不同充填高度情況下采空區及充填體的應力、位移及安全率等進行了分析研究，所得出的結論為礦山安全生產提供了理論指導。
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