干旱区生态环境知识资源中心(Arid): The Undrained Characteristics of Tengger Desert Sand from True Triaxial Testing

Arid

DOI	10.1155/2021/6320397
	The Undrained Characteristics of Tengger Desert Sand from True Triaxial Testing
	Li, Xuefeng; Lu, Weinan; Ma, Zhigang; Tuo, Ni
通讯作者	Li, XF (corresponding author), Ningxia Univ, Sch Phys & Elect Elect Engn, Yinchuan 750021, Ningxia, Peoples R China. ; Li, XF (corresponding author), Ningxia Univ, Solid Mech Inst, Yinchuan 750021, Ningxia, Peoples R China.
来源期刊	ADVANCES IN CIVIL ENGINEERING
ISSN	1687-8086
EISSN	1687-8094
出版年	2021
卷号	2021
英文摘要	Aimed at the characteristics of aeolian sand under rapid construction conditions in desert geotechnical engineering, a series of the true triaxial undrained test were carried out on the GDS apparatus. The 3D deformation, failure, and other characteristics of the dense sand are obtained. Under the condition of same pc, the state transition point where the void water pressure changes from increasing to decreasing appears earlier and leads to enhanced dilatancy with the increase of b, which means the enhanced dilatancy of dense sand caused the increase in strength. The results of the same b shows that the void water pressure generally indicates a decrease at low confining pressure and an increase at high confining pressure, indicating that the aeolian sand shows dilatancy at low confining pressure and contraction at high confining pressure. The state transition point increases with the increase of pc, but all points tend to the same critical state line and state transition line. When b = 0, the critical state line is q = 1.57 p ', and the state transition line is q = 1.23 p '. When b = 1, the critical state line is q = 1.24 p ', and the state transition line is q = 1.04 p '. The results at same b obtained the unified critical state line and the state transition line. Therefore, the true triaxial test can obtain the unified relationship of void ratio, pc and b, which overcomes the fact that the existing test cannot consider the influence of b. The test results provide a basis data for the design, construction, and maintenance of geotechnical engineering in Tengger Desert.
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000675824900001
WOS关键词	STRAIN LOCALIZATION ; APPARATUS ; SOIL
WOS类目	Construction & Building Technology ; Engineering, Civil
WOS研究方向	Construction & Building Technology ; Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362324
作者单位	[Li, Xuefeng; Lu, Weinan; Ma, Zhigang; Tuo, Ni] Ningxia Univ, Sch Phys & Elect Elect Engn, Yinchuan 750021, Ningxia, Peoples R China; [Li, Xuefeng] Ningxia Univ, Solid Mech Inst, Yinchuan 750021, Ningxia, Peoples R China
推荐引用方式 GB/T 7714	Li, Xuefeng,Lu, Weinan,Ma, Zhigang,et al. The Undrained Characteristics of Tengger Desert Sand from True Triaxial Testing[J],2021,2021.
APA	Li, Xuefeng,Lu, Weinan,Ma, Zhigang,&Tuo, Ni.(2021).The Undrained Characteristics of Tengger Desert Sand from True Triaxial Testing.ADVANCES IN CIVIL ENGINEERING,2021.
MLA	Li, Xuefeng,et al."The Undrained Characteristics of Tengger Desert Sand from True Triaxial Testing".ADVANCES IN CIVIL ENGINEERING 2021(2021).