Experimental study on collapsibility evaluation and treatment depths of collapsible loess upon self weight with thick depth

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	Experimental study on collapsibility evaluation and treatment depths of collapsible loess upon self weight with thick depth
	Yang, Xiaohui 1; Huang, Xuefeng 1,2; Zhu, Yanpeng 1; Yao, Zhihua 2; Zhang, Shijing 1
刊名	Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering
	2014-05-01
卷号	33 期号:5 页码:1063-1074
关键词	Compaction Moisture determination Sediments Soil mechanics Soil moisture Coefficient of collapsibility Collapse loess Foundation treatment Remnant collapse amount Soaking test
ISSN号	10006915
英文摘要	The in-situ soaking tests on loess collapsibility upon deadweight with the thickness greater than 36.6 m were carried out including a deep layer soaking test on a foundation treated with compaction piles of different lengths, a soaking test on a foundation treated with the deep dynamic compaction inside holes and a soaking test on a foundation buried with TDR moisture meters without water injection holes. The significant foundation subsidence occurred due to deep soaking when the thick deadweight collapsible loess foundation was treated 6 to 12 m in depths upon. When the depths of treatment were from 15 to 20 m, the ground settlement upon deep soaking was small. When the treatment depth was more than 20 m, the settlements of the foundation can be ignored. When the water pit of soaking test was 22.5 to 25.0 m in depth, the soil moisture content increased rapidly and even reached saturation, while if the water pit was deeper, the moisture content increased slowly with little collapse of loess. So 22.5 to 25 m can be viewed as the critical depth of foundation treatment and collapsibility evaluation for thick deadweight collapsible loess. The collapsibility in different regions and soil microstructures should be evaluated adopting different coefficients of collapsibility.
语种	中文
出版者	Academia Sinica
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113541]
专题	土木工程学院
作者单位	1.School of Civil Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China; 2.Department of Architectural Engineering, Logistical Engineering University of PLA, Chongqing 401311, China
推荐引用方式 GB/T 7714	Yang, Xiaohui,Huang, Xuefeng,Zhu, Yanpeng,et al. Experimental study on collapsibility evaluation and treatment depths of collapsible loess upon self weight with thick depth[J]. Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering,2014,33(5):1063-1074.
APA	Yang, Xiaohui,Huang, Xuefeng,Zhu, Yanpeng,Yao, Zhihua,&Zhang, Shijing.(2014).Experimental study on collapsibility evaluation and treatment depths of collapsible loess upon self weight with thick depth.Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering,33(5),1063-1074.
MLA	Yang, Xiaohui,et al."Experimental study on collapsibility evaluation and treatment depths of collapsible loess upon self weight with thick depth".Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering 33.5(2014):1063-1074.