TY - GEN
T1 - Effect of Microscopic Properties on the Mechanical Behavior of Gravelly Soil by Using DEM
AU - Thoa, Ho Thi Kim
AU - Weng, Meng Chia
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2021
Y1 - 2021
N2 - The gravelly soil has a wide range of grain size distribution, and its mechanical properties are much different from the sand, clay, or gravel solely. The amount and properties of fine content play an important role in the mechanical behavior of gravelly soil. To investigate the effect of fine content, this study collected a series of drained triaxial test data of gravelly soil under different confining pressure, ranging from 1.2 MPa to 3.0 MPa. Then, the discrete element method (DEM) was adopted to simulate the behavior of gravelly soil. The DEM simulation was first validated with the test data of gravelly soil. The effect of microscopic factors, including grain size, porosity, and particle properties, are further investigated in this study. PFC2D was adopted with the trial input parameters of the simulation. The existence of many fine particles affected the stress-strain relationship on simulation. The effective modulus is proportional to the magnitude of shear stress, while the contrary response with shear strain.
AB - The gravelly soil has a wide range of grain size distribution, and its mechanical properties are much different from the sand, clay, or gravel solely. The amount and properties of fine content play an important role in the mechanical behavior of gravelly soil. To investigate the effect of fine content, this study collected a series of drained triaxial test data of gravelly soil under different confining pressure, ranging from 1.2 MPa to 3.0 MPa. Then, the discrete element method (DEM) was adopted to simulate the behavior of gravelly soil. The DEM simulation was first validated with the test data of gravelly soil. The effect of microscopic factors, including grain size, porosity, and particle properties, are further investigated in this study. PFC2D was adopted with the trial input parameters of the simulation. The existence of many fine particles affected the stress-strain relationship on simulation. The effective modulus is proportional to the magnitude of shear stress, while the contrary response with shear strain.
UR - http://www.scopus.com/inward/record.url?scp=85125746584&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-79650-1_1
DO - 10.1007/978-3-030-79650-1_1
M3 - Conference contribution
AN - SCOPUS:85125746584
SN - 9783030796495
T3 - Sustainable Civil Infrastructures
SP - 1
EP - 14
BT - Smart and Green Solutions for Civil Infrastructures Incorporating Geological and Geotechnical Aspects - Proceedings of the 6th GeoChina International Conference on Civil and Transportation Infrastructures
A2 - Khabbaz, Hadi
A2 - Xiao, Yang
A2 - Chang, Jia-Ruey
PB - Springer Science and Business Media B.V.
T2 - 6th GeoChina International Conference on Civil and Transportation Infrastructures: From Engineering to Smart and Green Life Cycle Solutions, GeoChina 2021
Y2 - 19 July 2021 through 21 July 2021
ER -