Hydraulic conductivity of sediment cubes before and after freezing

被引：0

作者：

Vaitl, Tobias ^{[1
]}

Goekpinar, Thorsten ^{[1
]}

Englert, Andreas ^{[1
]}

机构：

[1] Ruhr Univ Bochum, D-44780 Bochum, Germany

来源：

GRUNDWASSER | 2014年 / 19卷 / 03期

关键词：

Darcy experiments; Sandbox experiments; Upscaling experiments; Flow experiments; Hydraulic conductivity; Heterogeneous media; SOLUTE TRANSPORT; FLOW;

D O I：

10.1007/s00767-014-0257-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

To study flow and transport processes in heterogeneous porous media, frozen sediment cubes that were assembled in sandbox experiments may represent a viable procedure. In this investigation, it was important to find out how flow and transport properties would be modified by sediment freezing. In this study, a medium sand, a coarse sand and a fine gravel were investigated to find out to what extent the hydraulic conductivities might change before and after freezing. For this purpose, a cubic Darcy-cell was developed. The results of the study show that it is possible to produce 10 x 10 x 10 cm frozen sediment cubes with the presented apparatus. The study also suggests that freezing and subsequent thawing only caused small changes in hydraulic conductivity of the investigated sediments.

引用

页码：201 / 209

页数：9

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