南水北调中线工程安阳段渠坡换填土的强度特性研究

Jun-hao ZHANG,Zheng-han CHEN,Qiang-qiang MIAO,Shu-guo SUN,Zhi-hua YAO

Journal of Logistical Engineering University（2011）

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Abstract

为了分析南水北调中线工程安阳段渠坡的稳定性,对该渠坡换填土在不同含水率下进行了不固结不排水三轴剪切试验.研究结果表明:剪切速率对基质吸力的影响较大,而对强度的影响较小；通过比较确定了合适的剪切速率；含水率相同的试样在不同围压下的强度值在pf -qf坐标上呈良好的线性关系；得到了试样在不同含水率下的总强度指标,建立了总内摩擦角和总黏聚力与含水率的关系式.

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Key words

moisture content,shear strength,triaxial shear test,matric suction,shear rate

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