气候变化领域集成服务门户(CCPortal): A novel method for estimating the elastic modulus of frozen soil

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DOI	10.1016/j.coldregions.2017.05.005
	A novel method for estimating the elastic modulus of frozen soil
	Ming, Feng; Li, Dongqing; Zhang, Mingyi; Zhang, Yu
发表日期	2017
ISSN	0165-232X
EISSN	1872-7441
起始页码	1
结束页码	7
卷号	141
英文摘要	In order to provide more reliable design parameters for geotechnical engineering, a completely analytical theory, which based on the assumption of linear elastic deformation in tension, is developed to determine the compressive elastic modulus and the tensile elastic modulus of materials simultaneously. With the Brazilian test method, the quantity-relationship between the displacement and the elastic modulus was derived. Five Brazilian splitting tests are used to check out the operability of the proposed test theory. The results show that the compressive elastic modulus is larger than the tensile elastic modulus under all loading conditions adopted in the test. The two elastic moduli in tension and compression change with the elapsed time when the samples are still in the elastic deformation stage. This is different from the previous consensus that is the elastic modulus is treated as a constant during the elastic deformation stage. This paper explores the reasons for those differences from the calculation method. The test results indicate that the proposed test method is feasible and liable, and can be treated as a convenient way to determine the elastic modulus through the Brazilian test. It was further thought that a new approach could be provided to estimate the compressive and tensile elastic moduli in Brazilian tests.
英文关键词	Frozen soil; Measured deformation; Compressive and tensile elastic modulus; Brazilian test
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS关键词	TENSILE-STRENGTH ; BRAZILIAN DISC
WOS记录号	WOS:000407693100001
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/240141
作者单位	[Ming, Feng; Li, Dongqing; Zhang, Mingyi; Zhang, Yu] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Ming, Feng,Li, Dongqing,Zhang, Mingyi,et al. A novel method for estimating the elastic modulus of frozen soil[J]. 中国科学院西北生态环境资源研究院,2017,141.
APA	Ming, Feng,Li, Dongqing,Zhang, Mingyi,&Zhang, Yu.(2017).A novel method for estimating the elastic modulus of frozen soil.COLD REGIONS SCIENCE AND TECHNOLOGY,141.
MLA	Ming, Feng,et al."A novel method for estimating the elastic modulus of frozen soil".COLD REGIONS SCIENCE AND TECHNOLOGY 141(2017).