期刊文献+

测定土壤饱和渗透系数的试验方法与结果优化 被引量:10

Test Method for the Determination of Soil Saturated Permeability Coefficients and the Optimization of Results
下载PDF
导出
摘要 土的渗透系数是一个极其重要的水文地质参数,它反映了土壤和岩层的透水性能,是地下水计算中一个不可缺少的指标,但土的渗透试验受诸多因素的影响,如土的物理性质、试验环境、试验场所、人为操作等。为了较为客观、准确地获取包气带浅层土壤饱和渗透系数,本文概述了Guelph渗透仪法野外渗透试验和室内变水头渗透试验测定土壤饱和渗透系数的原理与方法,并通过统计学中的置信区间对试验数据进行了优化处理。结果表明:野外试验测得的土壤饱和渗透系数较室内试验大,但误差在一个数量级内;室内试验测得的土壤饱和渗透系数与《工程地质手册》(第三版)给出的土壤饱和渗透系数参考值接近;Guelph渗透仪用于野外测定土壤饱和渗透系数的可靠性较高。 Hydraulic conductivity is one of the most important hydrogeological parameters, for it reflects the permeability of soil and rock, which is an indispensable index in the calculation of groundwater. Soil permeability test is affected by many factors, such as soil physical properties, test environment, test site, manual operation and so on. For the purpose of obtaining soil saturated permeability coefficients in the shallow soil of unsaturated zone accurately and objectively,this paper discusses the principle and method of Guelph permeameter test and the indoor varying-head permeability test,and also optimizes the test data by constructing confidence intervals. The results show that values of saturated permeability coefficients in field test are higher than those in laboratory test, but the inaccuracies are within one order of magnitude, and that the measured values in laboratory test are closer to those given by Manual of Engineering Geolo- gy (Third Edition). The study indicates that Guelph permeameter used for the determination of soil saturat- ed permeability coefficient in field is of high reliability.
出处 《安全与环境工程》 CAS 北大核心 2013年第5期144-148,162,共6页 Safety and Environmental Engineering
关键词 土壤 饱和渗透系数 Guelph渗透仪法 室内渗透试验 置信区间 可靠性 soil saturated permeability coefficient Guelph permeameter indoor permeability test confi-dence interval ~ reliability
  • 相关文献

参考文献13

  • 1甘德福,袁雅康.土的基本性质与室内土工试验[M].上海:地质学会出版,1984.
  • 2Zooz, R. H. , M. A. Arshad. Soil infiltration and hydraulic con ductivity under long-term no-tillage and conventional tillage sys tems[J]. Canadian Journal of Soil Science, 1996,76 (2) : 143 - 152.
  • 3Gimenez, G. , R. R. Allmaras, D. R. Huggins, et al. Prediction of the saturated hydraulic conductivity-porosity dependence using fractals[J]. Soil Sci. Soc. Am. J. ,1997,61(5):1285-1292.
  • 4南京水利科学研究院土木研究所.土木试验技术手册[M].北京:人民交通出版社,2003:65-69.
  • 5杨诗秀,段新杰.田间测定土壤水分参数的研究——圭尔夫渗透仪的应用[J].灌溉排水,1991,10(2):43-47. 被引量:12
  • 6GB/T50123-1999.土工试验方法标准[S].[S].,..
  • 7伍靖伟,杨金忠.圭夫仪与双套环测定土壤饱和渗透系数的试验比较[J].灌溉排水学报,2003,22(2):44-47. 被引量:12
  • 8孙翠先,郑树清.基于均匀分布参数估计的几个结果[J].大学数学,2006,22(5):129-133. 被引量:6
  • 9张巨洪,朱军,刘祖照,等.BASIC语言程序库[M].北京:清华大学出版社,1983:152.
  • 10工程地质编写委员会.工程地质手册(第三版)[M].北京:中国建筑工业出版社,1992.

二级参考文献39

共引文献359

同被引文献125

引证文献10

二级引证文献32

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部