地下水揚水法による汚染地盤の修復効果に関する一考察(<小特集>汚染地盤の修復)

概要

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In order to find a simple way of estimating the restorative effect of pumping groundwater in a section of ground sealed with an impervious wall of steel sheet piles, etc., unsaturated seepage column tests using a solution of TCE solvent or salt water were carried out, various considerations being made. The results showed that the restorative effect of pumping groundwater was dependent on the degree of saturation of the contaminated ground and could be assessed quantitatively from the water retention curve of the ground. Further, as a measure to improve the restorative efficiency in clayey ground, the formation of "water channels" using a sand pile method of ground improvement was considered, and improvement in restorative efficiency was checked through a saturated-unsaturated seepage analysis. It was shown that the restorative efficiency was improved.
社団法人地盤工学会の論文
2002-10-01