| 吹填土沉积后微观结构特征定量化研究 |
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| 引用本文： | 刘莹,王清.吹填土沉积后微观结构特征定量化研究[J].水文地质工程地质,2006,33(3):124-128. |
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| 作者姓名： | 刘莹 王清 |
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| 作者单位： | 1. 北京交通大学土木建筑工程学院,北京,100044
2. 吉林大学建设工程学院,长春,130026 |
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| 摘 要： | 粘性土微观结构是土体的一个重要质量特征.在外界环境条件影响下,吹填土在宏观上所表现出来的各种特性,都是其内在微观结构发生变化的外在反映.因此,微观结构对土的性质变化起着十分重要的作用.本文以连云港地区吹填土为研究对象,对其沉积后微观结构进行了定量测试,获得结构单元体的等效粒径、丰度、定向频率和定向分维数等定量化数据,并对结构单元体大小、平面形态和定向性进行了分析,该研究为吹填土工程性质的评价和改善提供了重要依据.
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| 关 键 词： | 吹填土 微观结构 定量化 沉积 |
| 文章编号： | 1000-3665（2006）03-00124-05 |
| 收稿时间： | 2005-12-27 |
| 修稿时间： | 2006-03-20 |
Quantitative study of microstructure characteristics of dredger fills after sediment |
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| LIU Ying,WANG Qing.Quantitative study of microstructure characteristics of dredger fills after sediment[J].Hydrogeology and Engineering Geology,2006,33(3):124-128. |
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| Authors: | LIU Ying WANG Qing |
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| Institution: | 1. School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China ; 2. College of Construction Engineering, Jilin University, Changehun 130026, China |
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| Abstract: | The microstructure is an important quality characteristic of clay. The macro-properties are extrinsic reflection of change in intrinsic microstructure under the influence of environment. Therefore, microstructure plays a significant role on the property changing of soil. The quantitative tests of microstructure of dredger fill after sediment in Lianyungang have been performed in this paper, and equivalent diameter, abundance, direction frequency and direction fractal dimensions of structural unit have been gained. According to these quantitative data, we analyzed the size, plane shape and directionality of structural unit of dredger fills. It provides an important basis for evaluation and improvement of dredger fill in engineering properties. |
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| Keywords: | dredger fills microstructure quantitative sediment |
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