【摘要】 介绍了马宅顶不对称连拱隧道新奥法施工过程中现场监测的项目、手段及方法。基于监测结果,分析了不对称连拱隧道围岩和支护系统的变形及受力特点,获得围岩的动态信息以指导施工,为支护体系的优化提供依据,并对监测结果进行了讨论,可为日后同类工程的设计、施工和监测提供有益的借鉴。更多还原

【Abstract】 The contents,technique,and method of monitoring in Mazhaiding non-symmetrical multi-arch tunnel constructed by application of NATM are presented. Based on the measured data,the deformation and stress properties of surrounding rocks and supporting system are analyzed. The in-time information is applied to guide tunnel construction and optimize the supporting system,and the monitoring results are discussed. The experience and data presented in the paper can be refereed in the design,construction and research of similar tunnel.更多还原