自然由来の重金属高含有岩盤掘削ずり埋立に対する周辺粘性土の遮水材としての利用可能性(<小特集>土壌汚染とその対策 : 最新動向 : 土壌汚染対策法施行から1年余が経過して)

概要

論文の詳細を見る
The excavated rocks from tunnel construction in volcanic areas contain higher heavy metal. Impervious structure using sheet or bentonite is installed to prevent the effluent of the embankment filled with the rocks, although the rationalization is necessary. This study examines use of the clayey soil located near the embankment to reduce the leaching Batch experiments showed that arsenic leaching from crushed altered igneous rocks occurred in two steps, a faster and the subsequent slower one. This indicates that the clayey layer can attenuate the arsenic by its adsorption. This method will be effective in the sealing of heavy metal.
社団法人地盤工学会の論文
2004-09-01