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Volume 39 Issue 8
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Abstract
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MU Bao-gang, LI Xu, GONG Wei-ming, ZHAO Xue-liang. Model tests on deformation characteristics of caissons under long-term horizontal load[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(8): 1388-1397. DOI: 10.11779/CJGE201708005
Citation: MU Bao-gang, LI Xu, GONG Wei-ming, ZHAO Xue-liang. Model tests on deformation characteristics of caissons under long-term horizontal load[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(8): 1388-1397. DOI: 10.11779/CJGE201708005
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Model tests on deformation characteristics of caissons under long-term horizontal load

  • 1. School of Civil Engineering, Southeast University, Nanjing 210096, China;
    2. Taizhou Architectural Design Institute Co., Ltd., Taizhou 225300, China

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  • Received Date: April 17, 2016
  • Published Date: August 24, 2017
    Graphical Abstract
    • Abstract
  • In order to study the deformation characteristics of caissons buried in soft clay under long-term horizontal load, three groups of model tests are designed and done. The capacity of caissons is first identified, then further tests are carried out to study the load-deformation curves, distribution characteristics of soil pressures in the passive area, displacements at top of the caissons, short-term and long-term displacement characteristics of soils in the passive area. Based on the test data, the ideal elastic-plastic of p-y curve is revised according to the loading time and magnitude. The results calculated by the revised formula agree with the test data, and the case studies show that the revised formula can provide theoretical and design guidance for the deformation calculation of caissons in soft soil areas.
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    • References (13)
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