Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Seismic Response Analysis of Tunnel under Multi-point Seismic Motion

ZHOU yun-dong;SHANGGUAN Zi-heng;CHU Fei-fei;WU Yong-xing;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University;Geotechnical Research Institute,Hohai University;  
To guarantee the safety of a tunnel,a nonlinear numerical analysis of an earthquake is carried out by using the FEM software.The elastic model was used to model the characteristics of concrete tunnel under circulating load.The Mohr-Coulomb model was adopted for soils,and the artificial boundary was chosen as the boundary condition.For the purpose of comparing the responses of uniform waves,traveling waves,coherent waves,and traveling-coherent waves,artificial multi-point earthquake acceleration was encoded into the FEM model.Compared with the calculation results of consistent excitation,the analysis shows that non-uniform seismic excitation can significantly increase both the force and displacement of the tunnel,which can have adverse effects on the seismic performance of the tunnel.This research conclusion can provide scientific basis for anti-seismic design and further analysis of long-tunnel structures.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved