中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 武汉岩土力学研究所
  3. 中科院武汉岩土力学所
Mechanical behavior of a fissured clay subjected to impact loading under the plane strain condition

文献类型：期刊论文

作者Gao, Zhiao1,2; Kong, Lingwei1,2; Sun, Zhiliang1,2; Wang, Shuangjiao1,3
刊名SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
出版日期2024-08-01
卷号183页码:14
关键词Fissures Clay Plane strain Impact loading Failure mechanism
ISSN号0267-7261
DOI10.1016/j.soildyn.2024.108764
英文摘要This study conducts several triaxial cyclic and plane strain cyclic impact tests on fissured soil under varying effective consolidation pressures, impact peak loads, and frequencies through the true triaxial test system to investigate the mechanical response characteristics. The results indicated that, under plane strain conditions, the specimens' shear resistance increases compared to that under triaxial loading. Moreover, the influence of fissures is challenging to quantify under triaxial loading compare to the mechanical response to fissure failure under the plane strain condition. As a result of the lateral confinement under plane strain conditions, the excess pore pressure, stress path, and lateral stress coefficient exhibit changes in sensitivity due to fissure damage, facilitating the analysis of the fissures' influence. Lower consolidation stress tends to increase the likelihood of fissure failure. As the peak impact stress escalates, the specimen deformation and excess pore pressure rise. When the impact peak stress reaches a critical value, the sample undergoes substantial deformation and fails rapidly. The impact of the frequency on specimen deformation correlates with the peak impact stress. Under low-impact peak stress, higher frequencies result in smaller deformations. However, under high-impact peak stress, a critical frequency exists. As the frequency increases, the difference between the maximum and minimum pore water pressure expands, with the change in this difference relating to fissure damage. Inherently, fissures in the soil significantly affect the mechanical properties under the impact load in the plane strain condition. The findings from this study can provide technical support for determining and evaluating the mechanical parameters of the fissured soil layer in light of the impact load.
资助项目National Key Research and Devel- opment Program of China[2019YFC1509901]
WOS研究方向Engineering ; Geology
语种英语
WOS记录号WOS:001252121600001
出版者ELSEVIER SCI LTD
源URL[http://119.78.100.198/handle/2S6PX9GI/41767]  
专题中科院武汉岩土力学所
通讯作者Kong, Lingwei
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
3.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Zhiao,Kong, Lingwei,Sun, Zhiliang,et al. Mechanical behavior of a fissured clay subjected to impact loading under the plane strain condition[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2024,183:14.
APA Gao, Zhiao,Kong, Lingwei,Sun, Zhiliang,&Wang, Shuangjiao.(2024).Mechanical behavior of a fissured clay subjected to impact loading under the plane strain condition.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,183,14.
MLA Gao, Zhiao,et al."Mechanical behavior of a fissured clay subjected to impact loading under the plane strain condition".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 183(2024):14.

入库方式： OAI收割

来源：武汉岩土力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。