Environmental Vibration Analysis Induced by Subway Trains Running in Overlapping Shield Tunnels

Abstract:

Environmental vibration problem caused by rail transport is always a crucial problem for the development of rail transport harmoniously and favorably. Lots of legislations have formulated to constrain this problem in many countries, however, most of them are worked out based on the analysis results and measured data from only single rail line. With the further development of rail transportation in China, more and more engineering will cross the others inevitably, which will cause a more complicated problem with multi-vibration source. And obviously, the multi-vibration source problem is not the linear superposition of several single vibration source problems. Focusing on two being planned overlapping shield tunnels, the computation model is established and the environmental vibration is calculated and analyzed by considering the running mode and running number of subway train. Fitting analysis is conducted and empirical formulas for vibration attenuation and then, the vibration range is determined accordingly. The research results in the paper can provide guide for the pre-design of overlapping engineering and also can offer references for the completion of relative legislations.

• Periodical: Advanced Materials Research (Volumes 671-674)
• Pages: 214-217
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.671-674.214
• Online since: March 2013
• Authors: Yuan Wen Liu, Xiao Feng Ren
• Keywords: Environmental Vibration, Overlapping Shield Tunnel, Subway Train

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