Experimental study on influences of inter-layered arrangements of soilbags on reinforcement of sandy soil slopes

WANG Yan-qiao; LI Yi-lei; LIU Kang; XIONG Xu; ZHOU Lei; ZHANG Heng; ZHENG Xiao-tang; DENG Chang-ao

doi:10.11779/CJGE2020S2037

Volume 42 Issue S2

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Chinese Journal of Geotechnical Engineering > 2020 > 42(S2): 208-213. > DOI: 10.11779/CJGE2020S2037

WANG Yan-qiao, LI Yi-lei, LIU Kang, XIONG Xu, ZHOU Lei, ZHANG Heng, ZHENG Xiao-tang, DENG Chang-ao. Experimental study on influences of inter-layered arrangements of soilbags on reinforcement of sandy soil slopes[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(S2): 208-213. DOI: 10.11779/CJGE2020S2037

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Experimental study on influences of inter-layered arrangements of soilbags on reinforcement of sandy soil slopes

School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China

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Received Date: August 06, 2020
Available Online: December 07, 2022

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Abstract

Abstract

The effectiveness of soilbags on slope reinforcement is verified in many engineering applications. However, there is no systematic experimental study on the influences of the inter-layered arrangements of soilbags on the reinforcement of soil slopes. The laboratory physical model tests on the soil slopes reinforced by soilbags with five different inter-layered arrangements are conducted. The influences of the inter-layered arrangements of soilbags on the reinforcement of soil slopes and their characteristics are investigated by analyzing the failure mode and pressure of slopes, the horizontal transmission and vertical distribution of soil pressures, and the variation tendency of the horizontal displacements during the loading process. The experimental results show that the bearing capacity and the settlement are the largest when the vertically and horizontally inter-layered stagger arrangement of soilbags (Arrangement 1) is applied. Arrangement 1 has the best reinforcement effectiveness among the five different arrangements. In addition, the longer the tail is buried in the slope, the stronger the inter-layered constraint is. The stronger inter-layered constraint causes stronger embedding effectiveness between the soilbag layers, and this effectiveness exhibits stronger deformation constraint, which induces better reinforcement effectiveness.
- sandy soil slope,
- soilbag,
- model test,
- arrangement

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