| 变形对非饱和土渗透系数影响规律模拟研究 |
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| 引用本文： | 张雪东,赵成刚,刘艳.变形对非饱和土渗透系数影响规律模拟研究[J].工程地质学报(英文版),2010,18(1):132. |
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| 作者姓名： | 张雪东 赵成刚 刘艳 |
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| 作者单位： | 北京交通大学土木建筑工程学院 北京 100044 |
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| 基金项目： | 国家重点基础发展研究计划项目(973)(编号:2010CB732100);;国家自然科学基金(编号:50778013);;北京市自然科学基金(编号:8082020) |
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| 摘 要： | 渗透系数是非饱和土渗流分析中最重要的参数。本文以概率、统计理论为基础,结合流体力学的基本方程,建立了一个能够考虑孔隙结构影响的饱和土渗透系数计算模型,而后结合Mualeum(1976)的相对渗透系数模型以及Assouline(2006)提出并验证的孔隙结构参数随变形的变化规律,模拟了变形对非饱和土渗透系数的影响,通过和试验数据以及已有的模型对比。
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| 关 键 词： | 非饱和土渗透系数 孔隙结构 概率论 统计学 变 形 |
PROBABILITY BASED MODEL FOR INFLUENCE OF DEFORMATION ON HYDRAULIC CONDUCTIVITY FUNCTION OF UNSATURATED SOILS |
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| ZHANG Xuedong ZHAO Chenggang LIU Yan.PROBABILITY BASED MODEL FOR INFLUENCE OF DEFORMATION ON HYDRAULIC CONDUCTIVITY FUNCTION OF UNSATURATED SOILS[J].Journal of Engineering Geology,2010,18(1):132. |
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| Authors: | ZHANG Xuedong ZHAO Chenggang LIU Yan |
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| Institution: | School of Civil Engineering and Architecture,Beijing Jiaotong University,Beijing100044 |
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| Abstract: | The hydraulic conductivity function is the key parameter in the seepage analysis of unsaturated soil.Based on the foundational equation of fluid mechanics and the theory of probability and statistics,this paper proposes a theoretical model for saturated permeability function.This model can take the influence of soil structure into account.It is combined with the Mualeum(1976)relative permeability function model,together with the variation law of the structural parameters during deformation proposed by Assou... |
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| Keywords: | Hydraulic conductivity function Pore structure Theory of probability Theory of statistics Deformation |
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