| 黄土微结构的试验研究 |
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| 引用本文： | 李兰.黄土微结构的试验研究[J].水文地质工程地质,2004,31(3):17-19,50. |
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| 作者姓名： | 李兰 |
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| 作者单位： | 中国地震局分析预报中心兰州基地,兰州,730000 |
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| 基金项目： | 国家自然科学基金项目(50379049)，地震联合基金(1031011) |
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| 摘 要： | 本文通过电镜扫描分析手段,对Q3黄土试验场地土样微结构特征的各项指标进行了比较和分析,旨在找出其规律性。同时,本文还介绍了黄土微结构的研究方法和要求。结合室内实验,对所获得的一系列黄土特性量化指标进行了分析对比,揭示了微结构与黄土液化之间的内在联系。研究结果表明,由统计值变异系数,能达到对黄土场地液化势起到相当程度确定性的目的,验证了利用微结构研究黄土结构变化的可行性。
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| 关 键 词： | 微结构 变异系数 黄土 |
| 文章编号： | 1000-3665(2004)03-0017-03 |
Study on microstructure of loess |
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| Li Lan.Study on microstructure of loess[J].Hydrogeology and Engineering Geology,2004,31(3):17-19,50. |
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| Authors: | Li Lan |
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| Abstract: | The quantitative characteristic of microstructure of loess is an important factor which influences engineering properties of loess. Using the Japan-made JEM-1200X scanning electronic microscope, the microstructure of prone seismic subsidence Q_3 loess is analyzed and its regularity is obtained. At the same time, methods and requirements for study on microstructure are also discussed. The purpose of this study is to discover the relationship between microstructure of loess and its liquefaction through combining soil testing and microstructure analysis. It is found that the quantitative indices of microstructure of loess can be used to evaluate some of the engineering concerns like liquefaction with fairly good accuracy. The variability coefficient of statistic values proves that the study on the change of structures using microstructure of loess is quite feasible. |
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| Keywords: | microstructure variability coefficient loess |
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