金川构造应力场对巷道工程稳定性的影响

在研究金川矿区断层产状要素与构造应力场分布规律之间关系的基础上，定义了表征矿岩和围岩中2组优势节理面剪切滑移危险程度的破坏因子，分析了矿区沿脉方向上，由主应力方向变动引起的矿体上盘围岩中2组优势节理面上破坏因子的变化过程。计算结果给出，在矿区东部，F₁产状节理面是巷道稳定的主控因素，而在矿区西部，F₁₇产状节理面有可能成为巷道稳定的主控因素。理论分析与沿脉巷道变形破坏的现场监测结果相一致。

Effect of Jinchuan Structural Stress Field on Workings Engineering Stability

Based on the study of the relationship between the main occurrence factor of the faults in Jinchuan deposit area and the distribution law of structural stress field, the paper defines the destruction factor that characterizes the shearing sliding danger degree of the two sets of dominant joints of ore rock and wall rock, and analyzes the destruction factor of the two sets of along-vein dominant joints in the upper wall rock caused by the variation of the main stress direction. The calculation results indicate that in the east of the deposit area, F1 joint plane occurrence is the main factor controlling the workings stability while in the west of the area, F17 joint plane occurrence may become the main factor controlling the workings stability, The theoretical analysis results conform to those of the site monitoring of deformation destruction of along-vein workings.