Experimental study of the behavior of soil-gravel mixtures

WANG Teng; HU Daisong; ZHANG Ga

doi:10.16511/j.cnki.qhdxxb.2018.22.018

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Journal of Tsinghua University(Science and Technology) ›› 2018, Vol. 58 ›› Issue (5) : 456-460. DOI: 10.16511/j.cnki.qhdxxb.2018.22.018

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Experimental study of the behavior of soil-gravel mixtures

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Abstract

The strength and deformation characteristics of the soil-gravel mixtures must be studied for disaster prevention and to improve safety. Serialized plain strain tests are conducted on various soil-gravel mixtures with aluminum bars used to simulate the gravel. The tests show that the gravel content and gravel shape significantly affect the strength and deformation of the soil-gravel mixtures. The peak strength and dilatancy characteristics increase as the gravel content increases and the gravel becomes more psephitic. Measurements of the gravel movement show that the gravel impedes the formation and development of the shear band by providing a rolling resistance which increases the peak strength.

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soil-gravel mixtures / plain strain test / strength / dilation

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WANG Teng, HU Daisong, ZHANG Ga. Experimental study of the behavior of soil-gravel mixtures[J]. Journal of Tsinghua University(Science and Technology). 2018, 58(5): 456-460 https://doi.org/10.16511/j.cnki.qhdxxb.2018.22.018

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