Researching the method of using consistency index estimating the permeability coefficient of clay

Liu Hai-wei

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Researching the method of using consistency index estimating the permeability coefficient of clay

更新时间：2023-11-14

- Researching the method of using consistency index estimating the permeability coefficient of clay
- Advanced Engineering Sciences Vol. 47, Issue Z1, Pages: 48-52(2015)
- 作者机构：
  
  西安理工大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2015，
  
  Published Online：1 December 2014，
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刘海伟.“研究生论坛”稿件：利用稠度指标估算粘土渗透系数的方法研究[J].工程科学与技术,2015,47(Z1):48-52.

Liu Hai-wei. Researching the method of using consistency index estimating the permeability coefficient of clay. [J]. Advanced Engineering Sciences 47(Z1):48-52(2015)
刘海伟.“研究生论坛”稿件：利用稠度指标估算粘土渗透系数的方法研究[J].工程科学与技术,2015,47(Z1):48-52. DOI：

Liu Hai-wei. Researching the method of using consistency index estimating the permeability coefficient of clay. [J]. Advanced Engineering Sciences 47(Z1):48-52(2015) DOI：

摘要

中文摘要: 粘土的渗透系数一直无法利用方便易测的参数估算。针对此问题，从分析无效孔隙对土体渗透特性的影响出发，首先定义了粘土无效孔隙比的概念，然后利用粘土的稠度界限指标液限，推导出有效孔隙比的计算公式，对常用的砂土渗透系数经验公式进行修正，得出粘土的渗透系数经验公式。最后以粘土的渗透系数经验公式为基础，对一个工程实例进行渗流计算。通过分析考虑与不考虑无效孔隙比计算结果之间的差异，以及将渗透系数的计算值同室内试验的实测值进行对比，验证了粘土渗透系数经验公式的合理性。

Abstract

Abstract:The permeability coefficient of clay had been not calculated using the easily measured parameters. For this problem，according to the analysis of invalid pore effects on soil seepage characteristics

the invalid void ratio were defined first. Caculation formulas of the efficient void ratio were derivated by the liquid limit. Then

the empirical formulas of clay permeability coefficient were obtained by modifying the common empirical formulas of sand permeability coefficient .Finally

based on the empirical formula of clay permeability coefficient

the seepage of an engineering project was calculated. By analyzing the difference between considered and unconsidered the invalid void ratio

comparing the calculated value of permeability coefficient with the measured value of laboratory test

the reasonable of the empirical formulas of clay permeability coefficient had been verified.

关键词

粘土无效孔隙比稠度指标渗透系数经验公式

Keywords

Clayinvalid void ratioConsistency indexempirical formula of permeability coefficient

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