Lessons Learnt from Damage of Highway Tunnels in Wenchuan Earthquake
Bo Gao, Zhengzheng Wang, Yuan Song, Yusheng Shen · Journal of Southwest Jiaotong University · 2009
Based on the field investigation of 18 tunnels along Dujiangyan-Wenchuan highway,the damage patterns of highway tunnels were systematically described,the damage mechanisms were analyzed,and some proposals were put forward for the future rehabilitation of the tunnels damaged by the Wenchuan earthquake. The research results show that the damage degree of the tunnels is associated not only with ground shaking,but also with geological disasters induced by slope instability and fault displacement. The research provides a reference for the seismic design of tunnels,the reconstruction of the disaster areas in the earthquake and the revision of corresponding codes and regulations.