干旱区生态环境知识资源中心(Arid): Low embankment dynamic response under vehicle traffic loads in arid-oasis areas

Arid

DOI	10.1007/s11629-020-5980-z
	Low embankment dynamic response under vehicle traffic loads in arid-oasis areas
	Wan, Qi; Yang, Xiao-hua; Yin, Pei-jie; Bao, Han
通讯作者	Yang, XH
来源期刊	JOURNAL OF MOUNTAIN SCIENCE
ISSN	1672-6316
EISSN	1993-0321
出版年	2020
卷号	17 期号:7 页码:1776-1789
英文摘要	The use of low embankments is of significant concern for ecological protection in arid-oasis areas. Based on the project of Sansha Expressway located in Kashgar City, Xinjiang, China, physical model tests were conducted in this study to investigate the dynamic response of the low embankment as per the effects of road structure, load amplitude, load frequency, load cycle, and moisture content. The dynamic stress is shown to increase with load amplitude while the dynamic elastic modulus decreases with load amplitude under short-term loading. The load frequency slightly influences the soil's dynamic behavior; higher frequencies can improve the dynamic elastic modulus of the subgrade soil. The moisture content has greater influence on the mechanical properties of the subsoil than that of subgrade layer. The subgrade bears the majority of the traffic load as the stress dissipates to 37% of the whole value on its surface. The number of load cycles has the greatest effect on the dynamic response among the influencing factors tested. The dynamic elastic modulus with the type of long-term dynamic loading is only 40%-52% of that with static loading across the entire depth range. The dynamic stress shows significant accumulation with load cycles over the long-term dynamic loading test and becomes stable after 8 x 10(4)cycles of loading. An equation is established to quantify the cumulative dynamic stress in the low embankment under long-term dynamic loading conditions.
英文关键词	Low embankment Dynamic response Model test Moisture content Dynamic elastic modulus Cumulative dynamic stress
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000543987900017
WOS关键词	SATURATED SOFT CLAY ; HALF-SPACE ; PLASTIC STRAIN ; DEFORMATION ; MODEL ; PAVEMENT ; STRESS ; SETTLEMENT ; VIBRATION ; BEHAVIOR
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324860
作者单位	[Wan, Qi; Yang, Xiao-hua; Yin, Pei-jie; Bao, Han] Changan Univ, Sch Highway, Xian 710064, Peoples R China
推荐引用方式 GB/T 7714	Wan, Qi,Yang, Xiao-hua,Yin, Pei-jie,et al. Low embankment dynamic response under vehicle traffic loads in arid-oasis areas[J],2020,17(7):1776-1789.
APA	Wan, Qi,Yang, Xiao-hua,Yin, Pei-jie,&Bao, Han.(2020).Low embankment dynamic response under vehicle traffic loads in arid-oasis areas.JOURNAL OF MOUNTAIN SCIENCE,17(7),1776-1789.
MLA	Wan, Qi,et al."Low embankment dynamic response under vehicle traffic loads in arid-oasis areas".JOURNAL OF MOUNTAIN SCIENCE 17.7(2020):1776-1789.