Open AccessEvaluation of a tunnel in Yunnan using CRD construction method
Author(s) -
Jun Duan,
Canrong Huang,
Xiangyang Cui,
Ké Li,
Hongyan Guo
Publication year - 2019
Publication title -
e3s web of conferences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.203
H-Index - 22
eISSN - 2555-0403
pISSN - 2267-1242
DOI - 10.1051/e3sconf/201913604020
Subject(s) - arch , vault (architecture) , geotechnical engineering , settlement (finance) , displacement (psychology) , tunnel construction , geology , deformation (meteorology) , mining engineering , structural engineering , engineering , computer science , psychology , oceanography , world wide web , payment , psychotherapist
According to the surrounding rock conditions of Re Shuitang Tunnel NO.2, it is analyzed whether the CRD method is suitable for such surrounding rock conditions. By comparing and analyzing the distribution of plastic zone of surrounding rock during construction and the displacement deformation of tunnel monitoring point, the tunnel is constructed. The plastic zone of the middle arch and the arch is obviously changed, and should be reinforced. The settlement of the right vault and the side wall is larger than the left side, which is about 19.8% and 21.9%. According to the analysis results, the vault should be reinforced in advance during tunnel construction to prevent collapse and ensure construction safety, and provide reference for future construction.