Research on Vulnerable Part of Shallow-buried Tunnel Structure under Earthquake Action
Based on the seismic fortification of the shallow-buried tunnel section on the north line of Zengjiayan bridge tunnel engineering in Chongqing,the seismic dynamic response analysis of the shallow-buried tunnel is carried out based on the dynamic finite element numerical method,including acceleration response analysis,displacement response analysis and the first and the third principal stress response analysis.The analysis results show that the side wall and arch foot of shallow-buried tunnel are vulnerable parts under the action of earthquake,which has certain guiding significance for the seismic design and construction of shallow-buried tunnel.
shallow-buried tunnelearthquake actionvulnerable part of the structuredynamic finite element
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