Model tests on influences of fill density on soil arching effects using transparent soil

YE Guan-bao; LI Ling-xu; ZHANG Zhen; TAO Feng-juan; CHENG Bin-nan

doi:10.11779/CJGE2022S2005

Volume 44 Issue S2

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Chinese Journal of Geotechnical Engineering > 2022 > 44(S2): 20-24. > DOI: 10.11779/CJGE2022S2005

YE Guan-bao, LI Ling-xu, ZHANG Zhen, TAO Feng-juan, CHENG Bin-nan. Model tests on influences of fill density on soil arching effects using transparent soil[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(S2): 20-24. DOI: 10.11779/CJGE2022S2005

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Model tests on influences of fill density on soil arching effects using transparent soil

YE Guan-bao^{1, 2,},
LI Ling-xu^{1, 2},
ZHANG Zhen^{1, 2, ,},
TAO Feng-juan^{1, 2},
CHENG Bin-nan^{1, 2}

1.
Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China
2.
Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China

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Received Date: November 30, 2022
Available Online: March 26, 2023

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Abstract

Abstract

The soil arching effect commonly exists in geotechnical engineering. The trapdoor tests are conducted using transparent soil to study the influences of fill density on the soil arching effect. The results show that under the lower compactness of the fill, the smaller relative displacement can reach the steady stage of soil arching, and improving the compactness of the fill can reinforce the soil arching effect. The fill density has no influences on the height of the inner arch, but significant influences on the outer arch. When the relative displacement is between 0% and 3%, the displacement reflectivity increases rapidly, and then gradually reaches a constant. Improving the fill density is beneficial to weakening the reflection of differential settlement. This study may provide a references for the influence of fill density on the evolution of soil arching.
- transparent soil,
- soil arching effect,
- fill density,
- trapdoor test

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