Opinions on Amendments to Partial Provisions for Tunnel Structure Calculation in“JTG D70-2010 Guidelines for Design of Road Tunnel”
（1 Sichuan Provincial Transport Department Highway Planning Survey, Design And Research Institute, Chengdu 610041; 2 Key Laboratory of Ministry of Education of Traffic Tunnel Engineering，Southwest Jiao tong University, Chengdu 610031）
Abstract：
Tunnel design is mainly based on empirical analogy method due to the complexity of tunnel structure, and the structure calculation and analysis is auxiliary. It is difficult and complex to study the calculation principle of tunnel structure and load, there are some problems to be found regarding the structural calculation in“Guidelines for Design of Road Tunnel”and revisions are needed. Analysis and discussion are conducted from the aspects of calculation method for loosening pressure on surrounding rock of the deep-buried multi-arch tunnel, arch feet constraint method for primary support and secondary lining calculation model and the bending moment solely borne by steel arch during checking steel arch and shotcrete strength. And some opinions on corresponding amendments are put forward.
TIAN Zhi-Yu,
Yang- Feng,
Zhang-Zhao-Jie etc
.Opinions on Amendments to Partial Provisions for Tunnel Structure Calculation in“JTG D70-2010 Guidelines for Design of Road Tunnel”[J] MODERN TUNNELLING TECHNOLOGY, 2017,V54(6): 1-7
2017, Vol. 54 