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金川矿区由于岩体破碎、地质构造复杂、地压大、巷道破坏严重而为地下工程人员所关注。多年来经过施工单位与科研单位的共同努力,已在不少方面取得了较大的进展。本文拟结合金川井巷工程施工的经验教训和有关的科研成果,对金川二矿区的工程地质、地压及巷道围岩变形控制方法提出看法,以供探讨。金川矿区位于祁吕-贺兰山字形构造体系的西翼,龙首山东端复背斜的北缘与阿拉善弧形构造边缘主旋褶带的斜接复合部位。现有地震资料说明,它至今仍有活动性。矿区岩层主要由深度变质岩系组成,岩层走向N55°W、倾向SW、倾角40～70°,呈单斜构造。岩体结构以断裂为主要形式。区内
Jinchuan mining area due to broken rock mass, complex geological structure, pressure, roadway damage and serious concern for underground engineers. Over the years through the joint efforts of construction units and research institutes, has made considerable progress in many aspects. Based on the experiences and lessons learned from the construction of Jinchuan Jingxiang Project and relevant scientific research achievements, this paper presents some opinions on engineering geology, ground pressure and deformation control of surrounding rock in Jinchuan No.2 mining area for discussion. The Jinchuan mining area is located in the west wing of the Qilu-Helan Mountain glyph structure and the miter composite zone of the northern margin of the eastern end anticline of the Longshou Mountains and the main fold of the Alxa arc structural margin. The available seismic data shows that it is still active today. The rock strata in the mining area are mainly composed of deep metamorphic rocks. The rock strata turn to N55 ° W with a tendency of SW and a dip angle of 40-70 ° with a monoclinic structure. The rock mass structure is mainly broken. Area