梵净山2号隧道进口山体变形及衬砌开裂处理技术研究

摘要

Displacement of partial mountain and deformation and crack of tunnel structure occur at entrance of Fanjing Mountain Tunnel No. 2 during construction. Through research, comprehensive treatment is adopted for treatment and stabilization of mountain, such as anchor lock anti - slide pile, grouting in cave for reinforcement, counter pressure backfilling outside cave, and then arches of tunnel are changed, which effectively solve the disease of mountain and tunnel.%梵净山2号隧道进口端,在施工过程中山体局部出现位移及隧道结构变形、开裂现象,通过研究,首先采取锚锁抗滑桩、洞内注浆加固、洞外反压回填等综合措施进行处理、稳定山体,然后进行隧道换拱处理,有效地解决了山体及隧道病害。