摘要
针对在全风化千枚岩条件下,双向六车道双连拱隧道的修建过程中发生大变形、支护结构开裂等现象,结合全风化千枚岩特性,进行大变形原因分析,提出隧道收敛及沉降的变形控制原则及具体措施。实施后,隧道大变形得到了根本性控制,降低了工程风险。
Aiming at the phenomenon such as large deformation, cracking of supporting structure in the con- struction process of double-arch tunnel with weathered phyllite, the reasons for large deformation were analyzed according to the all weathered phyllite characteristics. The deformation control principle and measures of tunnel convergence and settlement were put forward. After taking these measures, the large deformation of tunnel has been controlled fundamentally, which reduced the risk of project.
出处
《筑路机械与施工机械化》
2012年第1期67-71,共5页
Road Machinery & Construction Mechanization
关键词
全风化千枚岩
双连拱隧道
变形
控制措施
weathered phyllite
double-arch tunnel
deformation
control measure
