| 膨胀土裂隙面强度的直剪试验研究 |
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| 引用本文： | 胡波,龚壁卫,程展林,刘鸣,周武华.膨胀土裂隙面强度的直剪试验研究[J].西北地震学报,2011,33(Z1). |
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| 作者姓名： | 胡波 龚壁卫 程展林 刘鸣 周武华 |
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| 作者单位： | 长江水利委员会长江科学院,水利部岩土力学与工程重点实验室,湖北武汉430010 |
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| 基金项目： | 国家自然科学基金(51008035); 国家“十一五”科技支撑计划项目(2006BAB04A10) |
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| 摘 要： | 膨胀土中原生裂隙面的存在往往导致膨胀土边坡的失稳。选取南水北调中线工程南阳段膨胀土进行裂隙面强度试验研究,研究成果表明,裂隙面中填充的灰白色粘土的含水量远高于两侧不含裂隙膨胀土的含水量,裂隙面的峰值强度不仅远远小于不含裂隙膨胀土的峰值强度,而且也小于不含裂隙膨胀土的残余强度。
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| 关 键 词： | 南水北调中线工程 膨胀土 裂隙面 抗剪强度 直剪试验 |
Direct Shear Test on Shear Strength of Fissure-plane in Expansive Soil |
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| HU Bo,GONG Bi-wei,CHENG Zhan-lin,LIU Ming,ZHOU Wu-hua.Direct Shear Test on Shear Strength of Fissure-plane in Expansive Soil[J].Northwestern Seismological Journal,2011,33(Z1). |
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| Authors: | HU Bo GONG Bi-wei CHENG Zhan-lin LIU Ming ZHOU Wu-hua |
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| Institution: | HU Bo,GONG Bi-wei,CHENG Zhan-lin,LIU Ming,ZHOU Wu-hua(Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources,Changjiang River Scientific Research Institute,Wuhan 430010,China) |
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| Abstract: | Fissures in the expansive soil often cause the failure of expansive soil slope.Shear strength characteristics of fissure-plane in a typical expansive soil,which is sampled in Nanyang section of the Middle Route Project of South-to-North Water Transfer,is studied by direct shear tests.The results show that water content of gray clay filling in fissures is significantly higher than that of expansive soil of both sides.Otherwise,the peak strength of fissure-plane is much lower than that of expansive soil witho... |
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| Keywords: | Middle route of South-to-North Water Transfer Project Expansive soil Fissure-plane Shear strength Direct shear test |
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