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DOI	10.1016/j.coldregions.2018.08.012
	Development of a novel plane strain test apparatus for frozen soils
	Yao, Xiaoliang; Zhang, Mingyi; Xu, Guofang; Yu, Fan
发表日期	2018
ISSN	0165-232X
EISSN	1872-7441
起始页码	252
结束页码	262
卷号	155
英文摘要	In this paper, a novel apparatus enable of high controlling accuracy of temperature was developed for plane strain test of frozen soils. A cryostat was used to control test temperature. To improve temperature distribution uniformity of frozen soil specimens, two guiding plates were installed into the cryostat to force cooling air distribute uniformly surround specimen. According to test results, the temperature difference between different monitored points and average temperature can be controlled at +/- 0.2 degrees C. By taking Chinese standard sand as study object, compression tests under different axial strain rates were conducted. The images on the surface with strain restrained were captured during loading process, and strain localization evolution was analyzed with PIV technique. It was indicated that, with decrease of strain rate, shear band inclination and width do not change notably, while the strain field distributes more uniformly and concentration of which was decreased.
英文关键词	Frozen soils; Novel apparatus; Plane strain test; Strain localization
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS关键词	IMAGE VELOCIMETRY PIV ; DEFORMATION MEASUREMENT ; MECHANICAL-BEHAVIOR ; SILTY SAND ; MODEL ; TEMPERATURE
WOS记录号	WOS:000444514700023
来源期刊	COLD REGIONS SCIENCE AND TECHNOLOGY
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/240138
作者单位	[Yao, Xiaoliang; Zhang, Mingyi; Yu, Fan] Chinese Acad Sci, Northwest Inst Eco Environm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; [Xu, Guofang] Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Yao, Xiaoliang,Zhang, Mingyi,Xu, Guofang,et al. Development of a novel plane strain test apparatus for frozen soils[J]. 中国科学院西北生态环境资源研究院,2018,155.
APA	Yao, Xiaoliang,Zhang, Mingyi,Xu, Guofang,&Yu, Fan.(2018).Development of a novel plane strain test apparatus for frozen soils.COLD REGIONS SCIENCE AND TECHNOLOGY,155.
MLA	Yao, Xiaoliang,et al."Development of a novel plane strain test apparatus for frozen soils".COLD REGIONS SCIENCE AND TECHNOLOGY 155(2018).