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Influence of Vehicle Load Mode on the Response of an Asymmetrically-Loaded Deep Excavation

  • Bo Liu
  • Dingwen ZhangEmail author
  • Peisheng Xi
Geotechnical Engineering
  • 18 Downloads

Abstract

At present, the research on the influence of vehicle load mode on response of asymmetrically-loaded deep excavation is limited. Based on a deep excavation which is adjacent to the expressway and is subjected to the asymmetric load induced by the weight of embankment and the vehicle load together, this paper presented several vehicle load conversion methods firstly. Then a numerical modelling was performed to simulate the response of deep excavation considering the above methods. Next, a field monitoring of response of deep excavation was performed to verify the simulation results. By comparing the simulated and monitored results, the optimum vehicle load mode was recommended. The results indicate that the vehicle load has a considerable influence on the response of deep excavation. For this study, the equivalent thickness of soil layer method and the improved equivalent thickness of soil layer method are recommended to treat the vehicle load. This paper also analysed the influence factor of the improved equivalent thickness of soil layer method and found the improvement effect of this method rapidly decreases with the increase of retaining wall height. For a very high retaining wall, the improvement effect of this method is limited.

Keywords

vehicle load asymmetric load deep excavation numerical simulation field monitoring improvement effect 

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Notes

Acknowledgements

This study was supported by the National Key R&D Program of China (2016YFC0800200), the Postgraduate Research & Practice Innovation Program of Jiangsu Province (No.KYCX17_0151) and the Scientific Research Foundation of Graduate School of Southeast University (No.YBJJ1791). These financial supports are gratefully acknowledged.

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Copyright information

© Korean Society of Civil Engineers 2019

Authors and Affiliations

  1. 1.School of TransportationSoutheast UniversityNanjingChina
  2. 2.Jiangsu Key Laboratory of Urban Underground Engineering and Environmental SafetySoutheast UniversityNanjingChina
  3. 3.State and Local Joint Engineering Laboratory of Structure Health Monitoring and Disaster PreventionAnhui Jianzhu UniversityHefeiChina

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