金川Ⅲ矿区主井工程地质影响因素分析

The Specific Geologic Environment and Reason Analysis of Deformation and Failure of Main Shaft in Deposit Ⅲ of Jinchuan

应用工程地质综合分析方法,对金川Ⅲ矿区主井工程地质条件和井筒变形破坏的影响因素进行分析,认为主井区的工程地质条件极为复杂,地应力高,岩体富水性强,是岩体变形强烈地段;井筒的严重变形破坏与F1、F2断层的赋存形态、矿区位于构造运动强烈的高地应力区以及Ⅲ矿区主井工程位于地下水相对丰富的低山丘陵与山前冲沟积扇结合部位有关.研究结果为下一步井筒返修方案设计提供了参考依据.

The engineering geological conditions of main shaft in Deposit Ⅲ and the influencing factors of its failure are studied by a comprehensive analysis of Engineering Geology. The engineering geological conditions of the main shaft are very complicated for its ground stress is high,the rockmass has a water yield property and it is highly deformed. The F1.F2 fault species and Jinchuan deposits are located in high stress area with intense tectonic motion,and Jinehuan Ⅲ filed is located in combining site of low hill and mountain front gulch which are abundant in ground water. These features are relevant to the gross distortion of the main shaft. This conclusion can be used as a reference for the next design for repairing the shaft.