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Conference of the Arabian Journal of Geosciences

CAJG 2018: Recent Advances in Geo-Environmental Engineering, Geomechanics and Geotechnics, and Geohazards pp 169–171Cite as

Numerical Investigation of the Interface Shear Behaviors Between Double Soil Layers Using PFC2D

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Part of the book series: Advances in Science, Technology & Innovation ((ASTI))

Abstract

The influence of the interface morphology and stiffness ratio of the deformation modulus of upper and lower layers on the stress-shear displacement curves and shear strength parameters were investigated with numerical shear tests in PFC2D. The shear strength of the specimen increases with the increase of the normal stress. The lager the normal stress, the later the peak shear stress would appear. In case of saw teeth at the interface, the peak values of the shear stress appear in the end of the shear tests. The increase of the stiffness ratio can cause the connection fracture in the lower layer particles with smaller stiffness and reduce the thickness of the shear band. The smaller saw teeth size and stiffness ratio, the larger the shear stress.

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Acknowledgements

This work was funded by the National Key R&D Program of China (2016YFC0600903).

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Authors and Affiliations

  1. State Key Laboratory for Geomechanics and Deep Underground Engineering, School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou, China

    Zhong-Liang Zhang, Zhen-Dong Cui & Ling-Zi Zhao

Authors
  1. Zhong-Liang Zhang
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  2. Zhen-Dong Cui
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  3. Ling-Zi Zhao
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Corresponding author

Correspondence to Zhen-Dong Cui .

Editor information

Editors and Affiliations

  1. Sfax National School of Engineering, University of Sfax, Sfax, Tunisia

    Amjad Kallel

  2. Kütahya Dumlupınar University, Kütahya, Turkey

    Zeynal Abiddin Erguler

  3. China University of Mining and Technology, Xuzhou, Jiangsu, China

    Zhen-Dong Cui

  4. The University of Western Australia, Perth, WA, Australia

    ALi Karrech

  5. University of Adelaide, Adelaide, WA, Australia

    Murat Karakus

  6. Department of Materials Science and Engineering, The University of Arizona, Tucson, AZ, USA

    Pinnaduwa Kulatilake

  7. Edith Cowan University, Perth, WA, Australia

    Sanjay Kumar Shukla

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Zhang, ZL., Cui, ZD., Zhao, LZ. (2019). Numerical Investigation of the Interface Shear Behaviors Between Double Soil Layers Using PFC2D. In: Kallel, A., et al. Recent Advances in Geo-Environmental Engineering, Geomechanics and Geotechnics, and Geohazards. CAJG 2018. Advances in Science, Technology & Innovation. Springer, Cham. https://doi.org/10.1007/978-3-030-01665-4_40

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