| 邯郸击实膨胀土的微结构与含水量关系研究 |
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| 引用本文： | 贾东亮,牛兰芹,李燕. 邯郸击实膨胀土的微结构与含水量关系研究[J]. 河北工程大学学报(自然科学版), 2006, 23(2): 57-62 |
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| 作者姓名： | 贾东亮 牛兰芹 李燕 |
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| 作者单位： | 河北工程大学,土木学院,河北,邯郸,056038;河北工程大学,土木学院,河北,邯郸,056038;河北工程大学,土木学院,河北,邯郸,056038 |
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| 基金项目： | 河北省自然科学基金 , 河北省科技攻关项目 |
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| 摘 要： | 定性分析了邯郸击实膨胀土在不同含水量下的结构形式,发现邯郸击实膨胀土的微结构在含水量较低时,表现为集粒结构;在含水量较高时,定向性增强,趋于紊流结构。利用Matlab数字图形处理工具,结合像素的概念,通过编程计算不同含水量下土的颗粒分布分维,发现含水量较低时,分维值较大,颗粒集团化低;含水量较高时,分维值较小,颗粒集团化高。
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| 关 键 词： | 击实膨胀土 集粒结构 紊流结构 含水量 分形 颗粒分布分维 |
| 文章编号： | 1007-6743(2006)02-0057-06 |
| 修稿时间： | 2005-12-28 |
The relation of compacted expansive soils between microstructure and water content in Handan |
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| JIA Dong-liang,NIU Lan-gin,LI Yan. The relation of compacted expansive soils between microstructure and water content in Handan[J]. Journal of Hebei University of Engineering(Natural Science Edition), 2006, 23(2): 57-62 |
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| Authors: | JIA Dong-liang NIU Lan-gin LI Yan |
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| Abstract: | The structure form of compacted expansive soils under different water content are analyzed qualitatively.The results show that microstructure is aggregate structure under low water content,and the direction character become outstanding with the increasing of water content,furthermore trend to turbulent structure.The soils have fractal character is made sure by Matlab.The grain array form is described quantitatively by fractal dimension of grain distribution.The results show that with the increasing of water content,fractal dimension of grain distribution value is decreasing and grain conglomeration degree is strengthened. |
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| Keywords: | compacted expansive soils aggregate structure turbulent structure water content fractal fractal dimension of grain distribution |
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