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深埋特长隧道地形、地质条件复杂、隧道埋深大,设计制约因素多,常伴有断裂带、破碎带、岩爆、突泥、涌水等地质灾害,给设计和施工带来了很大的盲目性。文章以深埋特长隧道财神梁隧道为研究对象,对隧道掌子面所揭露围岩岩体、结构特征进行调查、记录以及分析掌子面围岩等级,分析监控量测所得实际围岩变形案例,对不同级别不同地质条件下的围岩稳定性进行分析比较,总结分析深埋特长隧道围岩稳定性的特点及其影响因素,为设计和施工安全提供参考。
The terrain of deep buried tunnel has complex geologic conditions, large buried depth and many design constraints, which are often accompanied by geological disasters such as fault zone, broken zone, rockburst, mud and gushing water, which bring great design and construction blindness. In this paper, the Choi Shen-Liang tunnel, a buried tunnel, is taken as the research object to investigate the rock masses and structural features of the surrounding rocks exposed from the palm face of the tunnel, to record and analyze the grade of the surrounding rock of the face and to analyze and analyze the actual surrounding rock deformation cases , Analyzes and compares the stability of surrounding rock under different geological conditions and summarizes the characteristics and influencing factors of the surrounding rock stability of the deep buried tunnel and provides references for the design and construction safety.