A method for microscopic unsaturated soil-water interaction analysis based on DDA

Longxiao Guo; Tonglu Li; Guangqi Chen; Pengcheng Yu; Xinyan Peng; Deguang Yang

doi:10.1016/j.compgeo.2018.12.002

A method for microscopic unsaturated soil-water interaction analysis based on DDA

Longxiao Guo, Tonglu Li, Guangqi Chen, Pengcheng Yu, Xinyan Peng, Deguang Yang

Division for Experimental Natural Science

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Unsaturated soil is a three-phase discontinues system, and microscopic analysis can provide an intrinsic understanding for macroscopic mechanical behavior of the soil. Discontinuous Deformation Analysis (DDA) has the advantage for analyzing the material like granular aggregates. Based on capillary mechanics, a newly developed algorithm is applied in conventional DDA code, which treats a DDA element as an ideal soil particle and exerts capillary force among elements. Then, to validate the extended method, an ideal microscopic soil model is established, and the simulation results are in good agreement with typical analytical solutions. It indicates that the developed DDA is reliable and applicable to explore unsaturated soil behaviors microscopically.

Original language	English
Pages (from-to)	143-151
Number of pages	9
Journal	Computers and Geotechnics
Volume	108
DOIs	https://doi.org/10.1016/j.compgeo.2018.12.002
Publication status	Published - Apr 2019

All Science Journal Classification (ASJC) codes

Geotechnical Engineering and Engineering Geology
Computer Science Applications

Access to Document

10.1016/j.compgeo.2018.12.002

Fingerprint Dive into the research topics of 'A method for microscopic unsaturated soil-water interaction analysis based on DDA'. Together they form a unique fingerprint.

Cite this

@article{0bd860b431fd4b55b2e70e1c3951943c,

title = "A method for microscopic unsaturated soil-water interaction analysis based on DDA",

abstract = "Unsaturated soil is a three-phase discontinues system, and microscopic analysis can provide an intrinsic understanding for macroscopic mechanical behavior of the soil. Discontinuous Deformation Analysis (DDA) has the advantage for analyzing the material like granular aggregates. Based on capillary mechanics, a newly developed algorithm is applied in conventional DDA code, which treats a DDA element as an ideal soil particle and exerts capillary force among elements. Then, to validate the extended method, an ideal microscopic soil model is established, and the simulation results are in good agreement with typical analytical solutions. It indicates that the developed DDA is reliable and applicable to explore unsaturated soil behaviors microscopically.",

author = "Longxiao Guo and Tonglu Li and Guangqi Chen and Pengcheng Yu and Xinyan Peng and Deguang Yang",

year = "2019",

month = apr,

doi = "10.1016/j.compgeo.2018.12.002",

language = "English",

volume = "108",

pages = "143--151",

journal = "Computers and Geotechnics",

issn = "0266-352X",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - A method for microscopic unsaturated soil-water interaction analysis based on DDA

AU - Guo, Longxiao

AU - Li, Tonglu

AU - Chen, Guangqi

AU - Yu, Pengcheng

AU - Peng, Xinyan

AU - Yang, Deguang

PY - 2019/4

Y1 - 2019/4

N2 - Unsaturated soil is a three-phase discontinues system, and microscopic analysis can provide an intrinsic understanding for macroscopic mechanical behavior of the soil. Discontinuous Deformation Analysis (DDA) has the advantage for analyzing the material like granular aggregates. Based on capillary mechanics, a newly developed algorithm is applied in conventional DDA code, which treats a DDA element as an ideal soil particle and exerts capillary force among elements. Then, to validate the extended method, an ideal microscopic soil model is established, and the simulation results are in good agreement with typical analytical solutions. It indicates that the developed DDA is reliable and applicable to explore unsaturated soil behaviors microscopically.

AB - Unsaturated soil is a three-phase discontinues system, and microscopic analysis can provide an intrinsic understanding for macroscopic mechanical behavior of the soil. Discontinuous Deformation Analysis (DDA) has the advantage for analyzing the material like granular aggregates. Based on capillary mechanics, a newly developed algorithm is applied in conventional DDA code, which treats a DDA element as an ideal soil particle and exerts capillary force among elements. Then, to validate the extended method, an ideal microscopic soil model is established, and the simulation results are in good agreement with typical analytical solutions. It indicates that the developed DDA is reliable and applicable to explore unsaturated soil behaviors microscopically.

UR - http://www.scopus.com/inward/record.url?scp=85059155016&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85059155016&partnerID=8YFLogxK

U2 - 10.1016/j.compgeo.2018.12.002

DO - 10.1016/j.compgeo.2018.12.002

M3 - Article

AN - SCOPUS:85059155016

VL - 108

SP - 143

EP - 151

JO - Computers and Geotechnics

JF - Computers and Geotechnics

SN - 0266-352X

ER -