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野猪山隧道右线出口科研段按照软弱围岩变形控制工法进行施工,属于软弱围岩隧道进洞施工工法的新尝试。本文详细介绍了软弱围岩变形控制工法在野猪山隧道进洞施工中的应用情况,并从控制围岩变形与保证围岩稳定、施工进度、风险控制三个方面对软弱围岩变形控制工法的施工效果进行评价,其中,控制围岩变形、保证围岩稳定的评价基于三个指标,即拱顶沉降、钢支撑内力和玻璃纤维锚杆加固效果,另外,还进一步对玻璃纤维锚杆施工的经验教训进行了总结,为掌子面玻璃纤维锚杆施工的改进提供了方向。
The scientific research section of the right exit of the Wild Pig Tunnel was constructed according to the deformation control method of soft surrounding rock, belonging to a new attempt of tunnel construction method for soft surrounding rock tunnel. This paper introduces the application of deformation control method of weak surrounding rock in tunnel construction of Yezhushan Tunnel in detail. From the aspects of controlling the deformation of surrounding rock and guaranteeing the stability of surrounding rock, construction schedule and risk control, The evaluation of the surrounding rock deformation and the stability of the surrounding rock are based on three indexes, namely the vault settlement, the steel support internal force and the reinforcement effect of the glass fiber anchor. In addition, the construction of the fiberglass anchor The lessons learned were summarized, providing a direction for the improvement of the construction of fiberglass anchor rod on the face.