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选用 2D—σ有限元计算软件 ,对深部平行巷道在构造应力场中的稳定性进行了数值分析 ,着重讨论了深部平行巷道围岩的变形特征、塑性区发育特征、围岩应力分布特征和动态演化过程 ,探明了构造应力作用与深部平行巷道围岩变形破坏的动态关系及围岩破坏机理 ,给出了合理的岩柱间距。
2D-σ finite element software was used to analyze the stability of deep parallel tunnel in tectonic stress field. The deformation characteristics of surrounding rock in deep parallel tunnel, the development of plastic zone, the stress distribution and dynamic characteristics of surrounding rock Evolution process, the dynamic relationship between tectonic stress and deformation and failure of surrounding rock in deep parallel roadway and the failure mechanism of surrounding rock are proved, and a reasonable spacing between rock columns is given.