Study on Seismic Response of Adjacent Overlapping Shield Tunnels

摘要

More and more shield tunnels will crossing each other with very short distance with the rapid development of urban rail transit construction in China. Focusing on one adjacent overlapping shield tunnel engineering, its three dimensional calculation model is established based on some simplification and its seismic response is analyzed in the paper. The analysis results show that the complicated structure has good seismic ability and can satisfy the seismic demand. The research results in the paper can provide preliminary design for relevant practical engineering in future.