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Abstract:
Based on the background of metro construction in Nanjing city, a large-scale shaking table test is accomplished to model the dynamic soil-tunnel interaction with liquefiable soils included in site. According to the aim and characteristic of test, the essential rules used to supervise the scale ratio design of test are formulated and the scale relations and the ratio of model system are deduced. How to prepare the model soils and to build the model structure are studied. Physical characteristics of model soils and micro-concrete are given by lab tests. According to the earthquake response characteristic of metro tunnel calculated by finite-element method, arrangement plans of sensors are made. At last, three waves of earthquake ground motion are selected as inputs and loading conditions are set out by considering the earthquake environment of Nanjing city. Test results prove that the shaking table test scheme for dynamic soil-metro tunnel interaction is reasonable. Analysis of the test results will make in another paper.
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Source :
Journal of Earthquake Engineering and Engineering Vibration
ISSN: 1000-1301
Year: 2006
Issue: 6
Volume: 26
Page: 178-183
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 2