Field tests on deformation property of self-weight collapsible loess with large thickness

doi:10.1061/(ASCE)GM.1943-5622.0000320

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	Field tests on deformation property of self-weight collapsible loess with large thickness
	Wang, Xue-Lang 1,2; Zhu, Yan-Peng 1; Huang, Xue-Feng 1
刊名	International Journal of Geomechanics
	2014-06-01
卷号	14 期号:3
关键词	Deformation Sediments Soils Water content Building construction Deformation properties Large-thickness loess Moisture migration Self weight collapsible loess Self-weight Soaking test Volumetric moisture content
ISSN号	15323641
DOI	10.1061/(ASCE)GM.1943-5622.0000320
英文摘要	To study the deformation property of large-thickness self-weight collapsible loess and to understand the moisture migration law and matrix suction characteristics, a 40-m-diameter soaking test was conducted in the field with self-weight collapsible loess at a thickness of 36.5 m. The results showed that (1) the field collapse deformation law of the large-thickness self-weight collapsible loess varied in two periods, namely, the soaking period and the water cutoff period; (2) during the soaking test, the distribution of crack patterns appeared from local to overall, from near to far, and from dense to sparse, then gradually extended; (3) the volumetric moisture content changed in different soil locations; (4) suction developed steadily before soaking, whereas with a large amount of water, suction dropped steeply within a short time; and (5) the water content of soil above 20 to 25 m increased rapidly and soon reached saturation, whereas the water content of soil below that depth increased slowly and reached saturation with difficulty. The test results may be useful for similar projects in the area of self-weight collapsible loess with large thickness, and to help revise Chinese codes for building construction in collapsible loess regions. © 2014 American Society of Civil Engineers.
WOS研究方向	Engineering
语种	英语
出版者	American Society of Civil Engineers (ASCE)
WOS记录号	WOS:000337342900001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113602]
专题	兰州理工大学
作者单位	1.School of Civil Engineering, Lanzhou Univ. of Technology, Lanzhou; 730050, China; 2.Gansu Construction Vocational Technical College, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wang, Xue-Lang,Zhu, Yan-Peng,Huang, Xue-Feng. Field tests on deformation property of self-weight collapsible loess with large thickness[J]. International Journal of Geomechanics,2014,14(3).
APA	Wang, Xue-Lang,Zhu, Yan-Peng,&Huang, Xue-Feng.(2014).Field tests on deformation property of self-weight collapsible loess with large thickness.International Journal of Geomechanics,14(3).
MLA	Wang, Xue-Lang,et al."Field tests on deformation property of self-weight collapsible loess with large thickness".International Journal of Geomechanics 14.3(2014).