IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
Alternative TitleRelation between evolution of clay shear strength and landslide induced by acid rain - Taking landslides in Three Gorges reservoir area for example
赵宇1,2; 崔鹏1; 胡良博2
Corresponding Author赵宇
Source Publication岩石力学与工程学报
Other AbstractPossible effects of changes in soil shear strength induced by acid rain on landslide formation are investigated. Soil samples from freshly exposed slip surface and adjacent surface have been studied at two landslides in the Three Gorges Reservoir area, China. A visibly higher smectite content at the slip surface and a dominant content of illite in the adjacent surface are observed. In laboratory, remolded soils are subjected to acid water immersion and tested for changes in their mineral compositions and shear strength after immersion with different durations. The largest change occurs in the internal friction angle, which drops over one-third, going with the change of the original smectitic soil with a substantial illite component into completely smectite dominated soil. Subsequently the internal friction angle rises back, simultaneously with neoformation of kaolinite at the expense of the smectite component. Changes in cohesion are much less significant. The original koalinite-rich and illite-rich samples are found to be much more stable. A chemo-mechanical model of clay is discussed at last.
Keyword边坡工程 抗剪强度演化 滑面 黏土 酸雨 重塑土 三峡库区
Subject AreaP642.22
Indexed ByEI ; CSCD ; 北大中文核心
Accession numberAccession number:20091412017472
Citation statistics
Cited Times:13[CSCD]   [CSCD Record]
Document Type期刊论文
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
赵宇,崔鹏,胡良博. 黏土抗剪强度演化与酸雨引发滑坡的关系——以三峡库区滑坡为例[J]. 岩石力学与工程学报,2009,28(3):576-582.
APA 赵宇,崔鹏,&胡良博.(2009).黏土抗剪强度演化与酸雨引发滑坡的关系——以三峡库区滑坡为例.岩石力学与工程学报,28(3),576-582.
MLA 赵宇,et al."黏土抗剪强度演化与酸雨引发滑坡的关系——以三峡库区滑坡为例".岩石力学与工程学报 28.3(2009):576-582.
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