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台塬塬顶裂缝对黄土斜坡水文响应的影响
引用本文:武彩霞,戴福初,闵弘,涂新斌,邝国麟,周跃峰.台塬塬顶裂缝对黄土斜坡水文响应的影响[J].吉林大学学报(地球科学版),2011,41(5):1512-1519.
作者姓名:武彩霞  戴福初  闵弘  涂新斌  邝国麟  周跃峰
作者单位:中国科学院地质与地球物理研究所,北京,100029;中国科学院岩土力学研究所,武汉,430071;香港大学土木工程学系,香港,999077
基金项目:香港研究资助局项目(RGC7140/08E)
摘    要:针对黑方台黄土滑坡,从现场灌溉试验监测数据和数值模拟分析着手,研究灌溉过程中台塬斜坡的水文响应以及对黄土斜坡稳定性的影响.结果表明:短期的灌溉并不能对地下水位形成有效的补给,但是却容易引起斜坡浅部范围内体积含水量增加,从而使得抗剪强度降低,最终在台缘顶部发生滑塌,台塬顶部裂缝的存在会使得浅部体积含水量增加速度加快,加速...

关 键 词:黄土滑坡  台塬裂缝  灌溉水入渗  现场监测  数值分析

Influence of Cracks at the Platform on Hydrologic Response of Loess Slope
WU Cai-xia,DAI Fu-chu,MIN Hong,TU Xin-bin,Kwong, A. K. L.,ZHOU Yue-feng.Influence of Cracks at the Platform on Hydrologic Response of Loess Slope[J].Journal of Jilin Unviersity:Earth Science Edition,2011,41(5):1512-1519.
Authors:WU Cai-xia  DAI Fu-chu  MIN Hong  TU Xin-bin  Kwong  A K L  ZHOU Yue-feng
Institution:WU Cai-xia1,DAI Fu-chu1,MIN Hong2,TU Xin-bin1,Kwong,A.K.L.3,ZHOU Yue-feng3 1.Institute of Geology and Geopysics,Chinese Academy of Sciences,Beijing 100029,China 2.Institute of Rock and Soil Mechanics,Wuhan 430071,China 3.Department of Civil Engineering,University of Hong Kong,Hong Kong 999077,China
Abstract:A field irrigation experiment has been made in an instrumented loess landslide of Heifangtai.Hydrological response and its effect on loess slope are analyzed based on monitoring data and numerical modelling.The result indicates that the groundwater table cannot be enhanced by short-term irrigation.However,the volumetric water content at shallow depths of the slopes increased rapidly,reducing the shear strength of loess and resulting in shallow failure at the margin of the platform.The cracks at the margin o...
Keywords:loess landslide  cracks at the margin of platform  infiltration of irrigation  field monitoring  numerical analysis  
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