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Failure Evolution Characteristics and Resistivity Damage Model of Expansive Clay with Filled Fissures under Uniaxial Compression

文献类型：期刊论文

作者Gao, Zhiao1,2; Kong, Lingwei1,2; Zhou, Zhenhua1,2; Wang, Shuangjiao2,3
刊名KSCE JOURNAL OF CIVIL ENGINEERING
出版日期2023-06-24
页码15
关键词Fissures Uniaxial compression Stress-strain-resistivity curves Digital image correlation (DIC) Damage model
ISSN号1226-7988
DOI10.1007/s12205-023-0134-9
英文摘要The fissure in expansive soil is an important factor to control the failure and stability of expansive soil foundation, slope, and underground engineering. This study utilizes the uniaxial compression-resistivity testing system to investigate the damage evolution of expansive clay with filled fissures by evaluating the stress-strain-resistivity curves of filled fissures with inclination angles of 0 & DEG;, 15 & DEG;, 30, 45 & DEG;, and 60 & DEG;. Within the study context, the samples were continuously photographed and observed during the test, and the local strain was analyzed using digital image correlation technology. Moreover, a mechanical damage model of fissured expansive soil was proposed based on the resistivity testing data. Generally, the test results have shown increasing the inclination angles of fissures decreases the strength linearly and changes the stress-strain behavior from hardening to softening. The failure modes of various fissure morphologies are classified into three main types: compressive fracture failure (0 & DEG;), slip-fracture coupling failure (15 & DEG; and 30 & DEG;), and slip failure (45 & DEG; and 60 & DEG;). The development characteristics of local strains with different fissure inclination angles are significantly different. Moreover, the soil's effective conductivity and strain have shown significance when developing damage models. This study provides a reference for understanding fissured soil's failure process and applying comprehensive resistivity testing technology in fissured soil mechanics.
资助项目National Key Research and Development Program of China[2019YFC1509901]
WOS研究方向Engineering
语种英语
WOS记录号WOS:001016173000005
出版者KOREAN SOCIETY OF CIVIL ENGINEERS-KSCE
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/111268]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Kong, Lingwei
作者单位1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Zhiao,Kong, Lingwei,Zhou, Zhenhua,et al. Failure Evolution Characteristics and Resistivity Damage Model of Expansive Clay with Filled Fissures under Uniaxial Compression[J]. KSCE JOURNAL OF CIVIL ENGINEERING,2023:15.
APA Gao, Zhiao,Kong, Lingwei,Zhou, Zhenhua,&Wang, Shuangjiao.(2023).Failure Evolution Characteristics and Resistivity Damage Model of Expansive Clay with Filled Fissures under Uniaxial Compression.KSCE JOURNAL OF CIVIL ENGINEERING,15.
MLA Gao, Zhiao,et al."Failure Evolution Characteristics and Resistivity Damage Model of Expansive Clay with Filled Fissures under Uniaxial Compression".KSCE JOURNAL OF CIVIL ENGINEERING (2023):15.

入库方式： OAI收割

来源：地质与地球物理研究所

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