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Deformation Analysis of Granular Soils under Dynamic Compaction Based on Stochastic Medium Theory

Author

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  • Jifang Du
  • Shuaifeng Wu
  • Sen Hou
  • Yingqi Wei

Abstract

Dynamic compaction (DC) is widely used to improve the mechanical properties of soils and other granular fill material upon which foundations or other structures are to be built. To calculate the inner deformation induced by DC, a computational model based on stochastic medium theory was developed to deduce the amount of deformation in the fill from the geometry of the DC crater. For this model, the tamper-soil system was simplified to an axisymmetric geometry and the probability of any unit of material below the crater being deformed can be calculated. Subsequently, the deformation at any point can be obtained by integration. Input parameters for the model were established by back analysis using the results from a DC field test and published data. Comparing the model results to results from actual and simulated DC programs shows that the computational model is useful for calculating deformation induced by DC without the need to consider the constitutive model of the soil.

Suggested Citation

  • Jifang Du & Shuaifeng Wu & Sen Hou & Yingqi Wei, 2019. "Deformation Analysis of Granular Soils under Dynamic Compaction Based on Stochastic Medium Theory," Mathematical Problems in Engineering, Hindawi, vol. 2019, pages 1-10, July.
    • Handle: RePEc:hin:jnlmpe:6076013
    DOI: 10.1155/2019/6076013
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