摘要
新奥法是目前国内外广泛采用的隧道动态监测设计施工方法,监控量测是新奥法施工的重要组成部分。通过对汶马高速公路鹧鸪山隧道施工过程中隧道水平收敛和拱顶下沉的监测,研究了隧道围岩的变形规律,并运用回归分析进行了拟合,估算出围岩的最终变形量,推断出二次衬砌的合理时机,防止施工中重大事故的发生,确保了隧道施工安全和质量,为类似工程的施工提供了参考。
New Austrian Tunneling Method（NATM） is a design and construction method used Ior dynamic momtonng oI a tunneJ wmcn is widely adopted at home and abroad at present. Monitoring measurement plays an important role in the construction of this method. By monitoring horizontal convergence and vault sink in the construction of Zhugu Mountain Tunnel in Wenma expressway, studied the deformation of the surrounding rock of the tunnel. And by using regression analysis for fitting, estimated the ultimate deformation of surrounding rock to infer the reasonable supporting time of second support. The purpose is to prevent the occurrence of major accidents in the construction and ensure the safety and quality of the tunnel construction. Besides, it can take as a reference for the construction of similar projects.
出处
《四川建筑科学研究》
北大核心
2015年第1期141-145,共5页
Sichuan Building Science
基金
教育部创新团队发展计划资助项目(IRT0955)
关键词
鹧鸪山隧道
围岩变形
监控量测
回归分析
Zhegu Mountain Tunnel
deformation of surrounding rock
monitoring measurement
regression analysis
