金川二矿区地应力特征及其对巷道变形破坏的影响研究
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Study on Ground Stress Characteristics and Its Influence on Roadway De-formation Failure in Jinchuan No.2 Mining Area
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图2. 金川二矿区主应力—深度散点图 |
Fig.2. Scatter plot of principal stress and depth in Jinchuan No.2 mining area |
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