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.
| Language | English |
|---|---|
| Pages | 143-151 |
| Number of pages | 9 |
| Journal | Computers and Geotechnics |
| Volume | 108 |
| DOIs | |
| Publication status | Published - Apr 1 2019 |
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All Science Journal Classification (ASJC) codes
- Geotechnical Engineering and Engineering Geology
- Computer Science Applications
Cite this
A method for microscopic unsaturated soil-water interaction analysis based on DDA. / Guo, Longxiao; Li, Tonglu; Chen, Guangqi; Yu, Pengcheng; Peng, Xinyan; Yang, Deguang.
In: Computers and Geotechnics, Vol. 108, 01.04.2019, p. 143-151.Research output: Contribution to journal › Article
}
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 - 2019/4/1
Y1 - 2019/4/1
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.
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U2 - 10.1016/j.compgeo.2018.12.002
DO - 10.1016/j.compgeo.2018.12.002
M3 - Article
VL - 108
SP - 143
EP - 151
JO - Computers and Geotechnics
T2 - Computers and Geotechnics
JF - Computers and Geotechnics
SN - 0266-352X
ER -