| 重塑上海淤泥质粘土直剪试验 |
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| 引用本文： | 高彦斌,王江锋,叶观宝,孟静.重塑上海淤泥质粘土直剪试验[J].煤田地质与勘探,2010,38(1). |
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| 作者姓名： | 高彦斌 王江锋 叶观宝 孟静 |
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| 作者单位： | 1. 同济大学岩土及地下工程教育部重点实验室,上海,200092;同济大学地下建筑与工程系,上海,200092
2. 同济大学岩土及地下工程教育部重点实验室,上海,200092;同济大学地下建筑与工程系,上海,200092;华北水利水电学院,河南,郑州,450011 |
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| 基金项目： | 上海市重点学科建设项目(B308);;国家自然科学基金项目(40702051) |
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| 摘 要： | 直剪试验是测定土体抗剪强度常用的方法。通过对重塑上海第4层淤泥质粘土分别进行固结快剪和慢剪试验,对慢剪和快剪的剪应力和剪切位移曲线以及慢剪和快剪的抗剪强度曲线进行分析,并对其剪应力与剪切位移关系曲线进行归一化分析,拟合得到各竖向压力下τ?S?S的归一化方程,进而统一了各竖向压力下τ/P.S?S的归一化方程,并通过抗剪强度曲线图可得到抗剪强度参数粘聚力(c)和内摩擦角(?);抗剪强度和剪切破坏时与剪切面上的含水率有较好的线性关系。
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| 关 键 词： | 重塑土 直剪试验 抗剪强度 归一化 |
Direct shear experiment research on remolded Shanghai silt clay |
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| GAO Yanbin,WANG Jiangfeng,YE Guanbao,MENG Jing.Direct shear experiment research on remolded Shanghai silt clay[J].Coal Geology & Exploration,2010,38(1). |
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| Authors: | GAO Yanbin WANG Jiangfeng YE Guanbao MENG Jing |
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| Institution: | 1.Key Laboratory of Geotechnical and Underground Engineering;Tongji University;Ministry of Education;Shanghai 200092;China;2.Department of Geotechnical Engineering;3.North China Institute of Water Conservancy and Hydroelectric Power;Zhengzhou 450011;China |
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| Abstract: | In this paper,fourth silt clay in Shanhai was remolded to carry out experiment of direct shear,namely consolidation quick shear and slow shear,the curves of shear stress and shear strength were analyzed in summary.The normalized curves of its shearing stress and shear displacement were also analyzed,and the normalization equation was obtained,the relations between shear strength and water content of the shearing failure were discussed. |
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| Keywords: | remolded clay direct shear shear strength normalization |
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