Mualem模型中的饱和导水率修正研究

张昊; 顾强康; 张仁义

doi:10.13961/j.cnki.stbctb.2015.03.003

您当前的位置：

首页 >

文章列表页 >

Mualem模型中的饱和导水率修正研究

试验研究

- Mualem模型中的饱和导水率修正研究
- Modification of Saturated Hydraulic Conductivity in Mualem Model
- 水土保持通报 2015年35卷第3期页码：168-171
- 作者机构：
  
  空军工程大学机场建筑工程系,陕西,西安,710038
- 作者简介：
- 基金信息：
  
  省部级项目"陕西延安机场工程"
- DOI：10.13961/j.cnki.stbctb.2015.03.003
  中图分类号：
- 纸质出版：2015
- 稿件说明：
移动端阅览
张昊, 顾强康, 张仁义. Mualem模型中的饱和导水率修正研究[J]. 水土保持通报, 2015,35(3):168-171.

ZHANG Hao, GU Qiangkang, ZHANG Renyi. Modification of Saturated Hydraulic Conductivity in Mualem Model[J]. Bulletin of Soiland Water Conservation, 2015, 35(3): 168-171.
张昊, 顾强康, 张仁义. Mualem模型中的饱和导水率修正研究[J]. 水土保持通报, 2015,35(3):168-171. DOI： 10.13961/j.cnki.stbctb.2015.03.003.

ZHANG Hao, GU Qiangkang, ZHANG Renyi. Modification of Saturated Hydraulic Conductivity in Mualem Model[J]. Bulletin of Soiland Water Conservation, 2015, 35(3): 168-171. DOI： 10.13961/j.cnki.stbctb.2015.03.003.

摘要

[目的

]

提高Mualem模型计算非饱和导水率的准确性。[方法

]

采用理论推导结合数据统计的方法研究该模型中的饱和导水率k

修正问题。基于Brooks-Corey土壤水分特征曲线模型

建立修正导水率k

与土壤水分特征曲线之间的理论关系式;通过回归分析得到k

与土壤水分特征曲线之间的理论关系式中相关参数。[结果

]

利用原状黄土的非饱和渗透试验数据

对考虑修正导水率k

的Mualem模型的准确性进行了验证

得到了比较满意的结果。[结论

]

研究成果可用于依据土壤水分特征曲线直接确定非饱和土导水率

对非饱和导水率预测研究具有一定参考价值。

Abstract

[Objective] In order to improve the accuracy of saturated hydraulic conductivity in the Mualem model. [Methods] The modification of the saturated hydraulic conductivity ks in the Mualem model was studied by theoretical method combined with data statistics. Based on the Brooks-Corey soil-water characteristic curve(SWCC) of unsaturated soil

a theoretical relationship between modified hydraulic conductivity and SWCC was presented

in which the correlation parameter was solved by regression analysis. [Results] Experimental data of undisturbed loess were used to evaluate the prediction outcomes of the Mualem model considering modified hydraulic conductivity ko

which showed satisfactory result. [Conclusion] This theoretical model can be used to determine unsaturated hydraulic conductivity directly from SWCC

which possesses some references for further research on the prediction of unsaturated hydraulic conductivity.

关键词

Keywords

references

谢定义,陈正汉.非饱和土力学特性的理论与测试[C]//土力学及基础工程学会.非饱和土理论与实践学术研讨会文集.北京:北京科技出版社,1992:227-229.

Mualem Y. A new model for predicting the hydraulic conductivity of unsaturated porous media[J]. Water Resources Research, 1976,12(3):513-522.

van Genuchten M T, Nielsen D R. On describing and predicting the hydraulic properties of unsaturated soils[J]. Ann. Geophys., 1985,3(5):615-628.

Schaap M G, Leij F J. Improved prediction of unsaturated hydraulic conductivity with the Mualem-van Genuchten model[J]. Soil Science Society of America Journal,2000,64(3):843-851.

Childs E C, Collis-George N. The permeability of porous materials[J]. Proceedings of the Royal Society of London(Series A):Mathematical and Physical Sciences, 1950,201,1066:392-405.

Marshall T J. A relation between permeability and size distribution of pores[J]. Journal of Soil Science, 1958,9(1):1-8.

Toledo P G, Novy R A, Davis H T, et al. Hydraulic conductivity of porous media at low water content[J]. Soil Science Society of America Journal, 1990,54(3):673-679.

Xu Y. Calculation of unsaturated hydraulic conductivity using a fractal model for the pore-size distribution[J]. Computers and Geotechnics, 2004,31(7):549-557.

Millington R J, Quirk J P. Permeability of porous solids[J]. Trans. Faraday Soc., 1961,57:1200-1207.

Burdine N T. Relative permeability calculations from pore size distribution data[J]. Journal of Petroleum Technology, 1953,5(3):71-78.

Kunze R J, Uehara G, Graham K. Factors important in the calculation of hydraulic conductivity[J]. Soil Science Society of America Journal, 1968,32(6):760-765.

Rawls W J, Brakensiek D L. Prediction of soil water properties for hydrologic modeling[C]. ASCE, 1985.

姚志华,陈正汉,黄雪峰,等.非饱和原状和重塑Q

黄土渗水特性研究[J].岩土工程学报,2012,34(6):1020-1027.

雷志栋,杨诗秀,谢森传.土壤水动力学[M].北京:清华大学出版社,1988:21,92-94.

浏览量

1726

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

黄土丘陵区退耕地植被恢复过程中土壤入渗特征的变化

EN-1固化剂对4种土壤饱和导水率的影响研究

典型旱地红壤水力学特性及其影响因素研究

晋西不同土地利用方式下土壤饱和导水率的影响因素

高寒矿区排土场边坡植被恢复年限对产流产沙的影响