关键词: 隧道, 变形, 支护

Abstract: Yanghe tunnel has the particularities of complex． Hole body of Yanghe tunnel appears long paragraphs carbonaceous schist，weak rock strength，poor stability and it is easy to melt into mud with water and vulnerable to collapse． Tunnel boring and serious deformation of surrounding rock result in severe deformation and collapse of initial supporting steel arch，which means that the security control and construction is of difficulty． According to the deformation time curve and time curve of surrounding rock pressure measured in field test，creep model inversion theological parameters are adopted，to analyze the mechanisms and characteristics of the tunnel carbonaceous schist lot of construction of large deformation． Control measures corresponding with carbonaceous schist grading standards are proposed，which is the technology breakthrough of deformation control of complex carbonaceous schist condition weak wall rock． Fast construction method for large deformation control of the tunnel under complex carbonaceous schist conditions is obtained．

Key words: tunnel, deformation, supporting