探讨表面张力对变水头法粘性土渗透系数测定试验的影响  

Discussion on the impact of surface tension on cohesive soil permeability coefficient determination tests of the variable head method

作　　者：任杰[1] 戴波[1] 

机构地区：[1]河海大学大禹学院,江苏南京210098

出　　处：《吉林水利》2013年第3期19-21,共3页Jilin Water Resources

摘　　要：本文从力学角度分析了表面张力对测压管读数的影响,并利用分析所得误差规律对实验室中变水头法测定粘土渗透系数试验进行误差分析,得出实验室中变水头法测粘土渗透系数玻璃管读数应遵循的规律,最终得出可减小误差的两种方法。This article analyzed the surface tension on the piezometer tubereadings from a mechanical point of view and carried out error analysis of claypermeability coefficient test error of variable head laboratory deter- mination withanalysis of the resulting error rule ;It obtained the glass tube reading regulation ofelay permeabil- ity coefficient of variable head measured in the lab, and ultimatelygot two methods reduced errors.

关 键 词：表面张力 渗透试验 数据对比 误差分析 

分 类 号：TV443[水利工程—水工结构工程]