摘要
新奥法的主要承载结构是初期支护,初期支护变形基本稳定后才进行二次衬砌,因此是二次衬砌的基础.通过对隧道初期支护沉降原因的分析,提出了针对该段不均匀沉降的整治措施.
The main load-bearing structure in NATM（New Austrian Tunneling Method）is initial support.The second lining establishes after the deformation of surrounding rocks and initial support-the basis of the second lining-has been basically stabilized.The causes of the initial support subsidence in Zhongxing Tunnel are analyzed.A method for renovating the subsidence is presented.
出处
《重庆交通大学学报（自然科学版）》
CAS
2007年第B10期28-29,40,共3页
Journal of Chongqing Jiaotong University(Natural Science)
关键词
隧道
初期支护
沉降
加固
tunnel
initial support
subsidence
reinforcement
