New recognition of collapsibility evaluation and remnant collapse of loess

	New recognition of collapsibility evaluation and remnant collapse of loess
	Yao Zhi-hua 1; Huang Xue-feng 1,2; Chen Zheng-han 1; Fang Xiang-wei 1; Miao Qiang-qiang 1,3; Zhang Jiang-shui 1
	2014-04-01
发表期刊	Yantu Lixue/Rock and Soil Mechanics
ISSN	10007598
卷号	35 期号:4 页码:998-1006
摘要	Based on summarized results of several large-scale soaking tests, some new recognition about methodology of collapsibility evaluation and reasonable limit of remnant collapse are proposed to modify difference between computed collapse under overburden pressure and measured value, and to decrease the collapsible loess treatment depth. When acquiring the computed collapse under overburden pressure, a depth correction factor ξ is suggested to make computed collapse under overburden pressure and the computed collapse of laboratory tests approximate measured collapse of in-situ tests; and it will decrease remnant collapse of collapsible loess in deeper position in some degree. When obtaining computed collapse, a scheme amplifying coefficient threshold of collapsibility (0.015) is presented, the method combined with depth correction factor ξ can reach the expected goal to enlarge the computed collapse and decrease remnant collapse of deeper collapsible loess. The conception "critical collapsibility depth" of dead weight collapse loess with heavy section is proposed; the critical collapsibility depth is set as 20-25 m temporarily according to some test data. In combination with the method of depth correction factor and amplifying coefficient threshold of collapsibility, the conception of critical collapsibility depth can decrease effectively remnant collapse of collapsible loess. The research results will be of interest for similar projects in the area of dead weight collapse loess and be useful to revise "standard for building construction in collapsible loess regions".
关键词	Rock mechanics Soil mechanics Collapsibility coefficient Collapsible loess Computed collapse Depth corrections Overburden pressures Remnant collapse
收录类别	EI ; ESCI
语种	中文
WOS研究方向	Engineering
WOS类目	Engineering, Geological
WOS记录号	WOS:000409737400013
出版者	Academia Sinica
EI入藏号	20142117744618
EI主题词	Sediments
EI分类号	483 Soil Mechanics and Foundations - 483.1 Soils and Soil Mechanics
来源库	Compendex
分类代码	483 Soil Mechanics and Foundations - 483.1 Soils and Soil Mechanics
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/113626
专题	兰州理工大学
通讯作者	Yao Zhi-hua
作者单位	1.Logist Engn Univ PLA, Dept Architectural Engn, Chongqing 401311, Peoples R China; 2.Lanzhou Univ Sci & Technol, Sch Civil Engn, Lanzhou 730050, Gansu, Peoples R China; 3.Chongqing Commun Res & Design Inst, Chongqing 400067, Peoples R China
推荐引用方式 GB/T 7714	Yao Zhi-hua,Huang Xue-feng,Chen Zheng-han,et al. New recognition of collapsibility evaluation and remnant collapse of loess[J]. Yantu Lixue/Rock and Soil Mechanics,2014,35(4):998-1006.
APA	Yao Zhi-hua,Huang Xue-feng,Chen Zheng-han,Fang Xiang-wei,Miao Qiang-qiang,&Zhang Jiang-shui.(2014).New recognition of collapsibility evaluation and remnant collapse of loess.Yantu Lixue/Rock and Soil Mechanics,35(4),998-1006.
MLA	Yao Zhi-hua,et al."New recognition of collapsibility evaluation and remnant collapse of loess".Yantu Lixue/Rock and Soil Mechanics 35.4(2014):998-1006.