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A new method to obtain the distribution of rock stone in RSM subgrade by high density resistivity surveys is proposed. Using image processing technology, the true resistivity image could be transformed to a vector format which can imported into finite element software. The finite models of RSM subgrade are established based on the vector image. The RSM subgrade bearing capacity and differential settlement under foundation’s load are analyzed. Numerical analysis result shows that the bearing capacity of RSM subgrade is bigger than the soil subgrade. The differential settlement is effected mainly by subgrade stiffness under two corners of the foundation and the location of the interface of rock and soil.

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Numerical Analysis of Soil-Rock Mixture Subgrade Based on High Density Resistivity Surveys

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  • 出版模式：

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  • 发表日期：

    2025年

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  • Jiangong Chen,
  • Diming Lou

摘要

A new method to obtain the distribution of rock stone in RSM subgrade by high density resistivity surveys is proposed. Using image processing technology, the true resistivity image could be transformed to a vector format which can imported into finite element software. The finite models of RSM subgrade are established based on the vector image. The RSM subgrade bearing capacity and differential settlement under foundation’s load are analyzed. Numerical analysis result shows that the bearing capacity of RSM subgrade is bigger than the soil subgrade. The differential settlement is effected mainly by subgrade stiffness under two corners of the foundation and the location of the interface of rock and soil.