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As a granular material, the mechanical properties of soil are very complex, especially for sandy soils, which are directly related to their physical state, and are characterized by the shear contraction of loose sand and the shear expansion of dense sand [1]. In addition, the loose and dense state of sandy soil is not only related to its relative density, but also depends on the amount of peripheral pressure exerted during the shear process. For sandy soils with the same relative density, shear swelling may occur at lower perimeter pressures while shear shrinkage may occur at higher perimeter pressures [1]. Saturated loose sands can even reach a state of static liquefaction during shear, which is a problem encountered from time to time in practical engineering. The development of an intrinsic model that can describe the complex mechanical properties of sandy soils is of high engineering and academic value.

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Model Description of Mechanical Properties and Temperature Effects in Gassy Sand

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  • 发表日期：

    2026年

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  • Guangchang Yang

摘要

As a granular material, the mechanical properties of soil are very complex, especially for sandy soils, which are directly related to their physical state, and are characterized by the shear contraction of loose sand and the shear expansion of dense sand [1]. In addition, the loose and dense state of sandy soil is not only related to its relative density, but also depends on the amount of peripheral pressure exerted during the shear process. For sandy soils with the same relative density, shear swelling may occur at lower perimeter pressures while shear shrinkage may occur at higher perimeter pressures [1]. Saturated loose sands can even reach a state of static liquefaction during shear, which is a problem encountered from time to time in practical engineering. The development of an intrinsic model that can describe the complex mechanical properties of sandy soils is of high engineering and academic value.