气候变化领域集成服务门户(CCPortal): Critical dynamic stress for the frozen subgrade soil

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DOI	10.1080/14680629.2022.2052940
	Critical dynamic stress for the frozen subgrade soil
	Zhou, Zhiwei; Shen, Mingde; Wang, Qingzhi
通讯作者	Zhou, ZW (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou, Peoples R China. ; Zhou, ZW (通讯作者)，Univ Chinese Acad Sci, Beijing, Peoples R China.
发表日期	2020
ISSN	1468-0629
EISSN	2164-7402
英文摘要	Triaxial dynamic tests at the temperature -6 degrees C were performed on frozen subgrade soil to study accumulative deformation and resilient deformation properties. Based on the shakedown theory, a reliable evaluation for the long-term serviceability of the frozen subgrade was further presented. The influences of confining pressure, dynamic stress amplitude, initial stress path and initial stress ratio on dynamic properties of frozen subgrade soil were analysed. The evolution features of accumulative permanent strain under cyclic loading were experimentally determinated. The boundary functions for plastic shakedown area and plastic creep area were further established. Critical dynamic stresses for the different deformation areas can be calculated by the experimental data and the proposal formula. The influences of consolidation pressure and initial stress ratio on critical dynamic stress were discussed in detail. The distribution characteristics (envelope line loci) of the critical dynamic stress were investigated in the mean stress-the shear stress space.
关键词	LOADING EXPERIMENTAL-EVIDENCE THAWED SATURATED CLAY CONSTITUTIVE MODEL FLEXIBLE PAVEMENTS MECHANICAL-PROPERTIES DEFORMATION-BEHAVIOR ENERGY-DISSIPATION SHAKEDOWN ANALYSIS PLASTIC STRAIN SHEAR MODULUS
英文关键词	High-speed railway; critical dynamic stress; cyclic stress path; embankment stabilisation
语种	英语
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
WOS类目	Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS记录号	WOS:000773782200001
来源期刊	ROAD MATERIALS AND PAVEMENT DESIGN
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253916
作者单位	[Zhou, Zhiwei; Shen, Mingde; Wang, Qingzhi] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou, Peoples R China; [Zhou, Zhiwei; Shen, Mingde; Wang, Qingzhi] Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Zhiwei,Shen, Mingde,Wang, Qingzhi. Critical dynamic stress for the frozen subgrade soil[J]. 中国科学院西北生态环境资源研究院,2020.
APA	Zhou, Zhiwei,Shen, Mingde,&Wang, Qingzhi.(2020).Critical dynamic stress for the frozen subgrade soil.ROAD MATERIALS AND PAVEMENT DESIGN.
MLA	Zhou, Zhiwei,et al."Critical dynamic stress for the frozen subgrade soil".ROAD MATERIALS AND PAVEMENT DESIGN (2020).