Evolution of mesostructure and mechanical characteristics of cemented granular soils under undrained cyclic loads

被引：4
|
作者：
Sun, Yi [1 ]
Liu, Enlong [1 ,2 ]
Zhi, Bin [3 ]
机构：
[1] Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Water Resources & Hydropower, Chengdu 610065, Peoples R China
[2] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China
[3] Xian Univ Sci & Technol, Sch Architecture & Civil Engn, Xian 710054, Peoples R China
来源：
GRANULAR MATTER | 2022年 / 24卷 / 01期
关键词：
Cyclic loading; Complex network; Cemented soils; Mesostructure; Discrete element method; BEHAVIOR; CLAY; DEFORMATION; CONSTANT; SAND;
D O I：
10.1007/s10035-021-01191-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The mechanical behaviors of cemented granular soils under undrained conditions and cyclic loads were determined through numerical simulations and the details about the contact network and bonds of numerical sample were investigated. The evolution of the internal structure of the samples subjected to cyclic loads was analyzed based on the results of parameters from a complex network. The results showed that the evolution of the residual pore-water pressure strongly correlated with the parameters of complex network and a new pore-water pressure model was proposed based on these parameters. Therefore, the evolution of the mesostructure can be used to describe the development of the pore-water pressure generated in granular cemented soils.
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收藏
页数：15
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