Dynamic response of utility tunnel during the passage of Rayleigh waves
Jie Li1, Qingxia Yue2, Jun Chen1
1 State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China 2 School of Civil Engineering, Shandong Jianzhu University, Ji’nan 250101, China
Dynamic response of utility tunnel during the passage of Rayleigh waves
Jie Li1, Qingxia Yue2, Jun Chen1
1 State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China 2 School of Civil Engineering, Shandong Jianzhu University, Ji’nan 250101, China
摘要The modeling methodologies and calculation of dynamic response of underground structure under Rayleigh waves is investigated in this paper. First the free field responses under Rayleigh waves are analyzed and the numerical results agree well with the theoretical results. Then, the approximate Rayleigh waves are put forward based on the preliminary research, and Rayleigh wave field is obtained through fast Fourier transform technique. Taking a utility tunnel as an example, its dynamic responses under Rayleigh waves is calculated by ABAQUS. The results demonstrate that bending deformation is the main component of structural deformation and the deformation at the top of the structure is about twice as much as that at bottom of the structure. The effect of soil-structure interface and the buried depth of underground structure are also investigated via parameter analysis. For the shallow buried underground structures, Rayleigh waves can be the key factor to control the responses and damage of the structure.
Abstract：The modeling methodologies and calculation of dynamic response of underground structure under Rayleigh waves is investigated in this paper. First the free field responses under Rayleigh waves are analyzed and the numerical results agree well with the theoretical results. Then, the approximate Rayleigh waves are put forward based on the preliminary research, and Rayleigh wave field is obtained through fast Fourier transform technique. Taking a utility tunnel as an example, its dynamic responses under Rayleigh waves is calculated by ABAQUS. The results demonstrate that bending deformation is the main component of structural deformation and the deformation at the top of the structure is about twice as much as that at bottom of the structure. The effect of soil-structure interface and the buried depth of underground structure are also investigated via parameter analysis. For the shallow buried underground structures, Rayleigh waves can be the key factor to control the responses and damage of the structure.
基金资助:key project of the National Science and Technology Pillar Program (Grant No. 2006BAJ03B03) and Research Fund from State Key Laboratory for Disaster Reduction in Civil Engineering (Grand No. SLDRCE08-C-03)
通讯作者:
Jie Li
E-mail: lijie@tongji.edu.cn
引用本文:
Jie Li, Qingxia Yue, Jun Chen. Dynamic response of utility tunnel during the passage of Rayleigh waves[J]. 《地震学报》英文版, 2010, 23(1): 13-24.
Jie Li, Qingxia Yue, Jun Chen. Dynamic response of utility tunnel during the passage of Rayleigh waves. Earthquake Science, 2010, 23(1): 13-24.
