| 天津吹填软土沉积特性及其微观结构研究 |
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| 引用本文： | 杨爱武,杜东菊,卢力强.天津吹填软土沉积特性及其微观结构研究[J].水文地质工程地质,2010,37(5):83-87. |
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| 作者姓名： | 杨爱武 杜东菊 卢力强 |
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| 作者单位： | 天津城市建设学院土木工程系;天津市软土工程特性与工程环境重点实验室; |
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| 基金项目： | 天津市科技发展计划项目，天津市科技发展计划重点科技攻关项目，科技创新能力与环境建设平台项目 |
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| 摘 要： | 吹填软土由于其物质成分和沉积环境千差万别,决定了其工程性质也差别很大,具有区域性特点。本文以大型沉降柱模拟吹填泥浆自然沉积,对天津滨海新区吹填泥浆静水沉降过程中泥水分界面、含水量、孔隙比变化及其沉积后的相关特性进行了探讨,并对其微观结构特征进行了研究。试验结果分析表明:天津吹填土富含粘土矿物,微结构不稳定。在沉积过程中,颗粒分选明显,各项指标前期变化大,后期趋于稳定,总体工程性质差,难以直接满足工程建设的需要,需进行相应的处理。
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| 关 键 词： | 吹填软土 沉积特性 微观结构 泥水分界面 |
Study on sediment characteristics and micro-structure of soft dredger soil of Tianjin |
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| YANG Ai-wu,DU Dong-ju,LU Li-qiang.Study on sediment characteristics and micro-structure of soft dredger soil of Tianjin[J].Hydrogeology and Engineering Geology,2010,37(5):83-87. |
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| Authors: | YANG Ai-wu DU Dong-ju LU Li-qiang |
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| Institution: | 1.Department of Civil Engineering,Tianjin Institute of Urban Construction,Tianjin 300381,China;2.Key Laboratory of Soft Soil Engineering Character and Engineering Environment of Tianjin,Tianjin 300381,China |
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| Abstract: | Due to the different material composition and depositional environments,the engineering properties of soft dredger soil varied widely and also has regional characteristics.In order to probe the mud-water interface,water content and void ratio changes in the procession of subsidence and post-depositional characteristics of Tianjin soft dredger soil,the large-scale settlement column is designed to simulate the natural sediment of the mud,and its micro-structure is also studied.The test results sho... |
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