One of the important factors taken into account in the tunnel classification is the style of deformation and failure, which is related to initial stress state in wall rock.
隧道按埋深分类应考虑的主要因素之一是围岩的变形破坏方式，而后者与围岩的初始应力状态密切相关。
In order to meet technical needs and minimize the deformation of tunnel, bolt-grouting supporting program was adopted on analysis of interaction between supporting and wall rock.
为了满足掘进巷道的技术要求，解决巷道的变形，通过对巷道支护与围岩相互作用及目前各类巷道支护形式及支护效果分析研究，决定采用锚注支护方案。
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