| 饱和流塑淤泥的次固结特性研究 |
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| 引用本文： | 李志华,陈文辉,于志华,荣晓阳.饱和流塑淤泥的次固结特性研究[J].水利与建筑工程学报,2012,10(3):30-33. |
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| 作者姓名： | 李志华 陈文辉 于志华 荣晓阳 |
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| 作者单位： | 1. 中建五局土木工程有限公司,湖南长沙,410004
2. 东北大学资源与土木学院,辽宁沈阳,110004 |
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| 基金项目： | 国家自然科学基金，深部岩土力学与地下工程国家重点实验室，地质灾害防治与地质环境保护国家重点实验室 |
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| 摘 要： | 以辽宁大连瓦房店输水工程饱和流塑淤泥层地段管道施工难题作为分析对象,选取关键地段代表性土样开展试验研究,研究饱和流塑淤泥的次固结特性,并将变形与孔压消散规律的实验结果和太沙基固结理论计算结果进行对比。结果表明:饱和流塑淤泥的次固结系数与固结压力无关,相同固结压力作用下经过预压的淤泥的次固结系数比没有经过预压的淤泥的次固结系数大大减小。
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| 关 键 词： | 淤泥 次固结 变形特性 孔隙水压力 |
Study on Secondary Consolidation Characteristics of Saturated Flowing Muck |
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| LI Zhi-hua,CHEN Wen-hui,YU Zhi-hua,RONG Xiao-yang.Study on Secondary Consolidation Characteristics of Saturated Flowing Muck[J].Journal of Water Resources Architectural Engineering,2012,10(3):30-33. |
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| Authors: | LI Zhi-hua CHEN Wen-hui YU Zhi-hua RONG Xiao-yang |
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| Affiliation: | 1.CCFEB Civil Engineering Co,.Ltd.,Changsha,Hu’nan 410004,China;2.College of Resources & Civil Engineering,Northeastern University,Shenyang,Liaoning 110004,China) |
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| Abstract: | Taking the pipeline construction in the saturated flowing muck reach of Wafangdian water supply project in Dalian of Liaoning Province as the analysis object,the representative soil sample is selected to make the experimental research on the secondary consolidation characteristics of saturated flowing muck,and the experimental results of deformation property and pore pressure are compared with the calculation results of Karl Terzaghi consolidation theory.The results show that the secondary consolidation coefficient of saturated flowing muck has no relation to the consolidation pressure,and the secondary consolidation coefficient of the silt soil under same consolidation pressure after preloading is much smaller than that without preloading. |
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| Keywords: | silt soil secondary consolidation deformation property pore pressure |
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