飽和多孔媒体におけるDNAPL浸透メカニズムに関する実験的研究

• 上野 孝之

  (株) 大林組技術研究所

• GIRI RABINDRA RAJ

• 西田 憲司

  (株) 大林組技術研究所

• 佐藤 邦明

  埼玉大学地圏科学研究センター

書誌事項

タイトル別名

• AN EXPERIMENTAL STUDY ON DNAPL FINGERING MECHANISM IN SATURATED POROUS MEDIA

抄録

Knowledge of DNAPL fingering phenomena in water-saturated porous media, which is not well investigated, is expected to be useful to get more insights on the contaminant transport behaviors. Laboratory experiments on trichloroethylene (TCE) fingering behaviors in saturated uniform glass sphere porous media were carried out. Two different approaches were adopted in interpreting the experimental results. The effective porosity (n_eD) and modification factor (k_D) varied in the ranges 4.0 × 10^-2 to 5.0 × 10^-2 and 2.0 × 10^-4 to 5.0 × 10^-2 respectively in these experiments. A correlation between diameter ratio (δ_e) and Reynolds number (R_e) for TCE fingers has been established. The n_eD, values for three different glass sphere sizes were almost the same while the values of k_D function increased with increasing glass sphere size. The diameter ratio decreased as finger Reynolds number increased.

収録刊行物

• 水工学論文集

  水工学論文集 47 313-318, 2003

  公益社団法人 土木学会

キーワード

• DNAPL migration
• fingering
• velocity of fingering
• groundwater contamination
• saturated porous media
• TCE
• porosity

詳細情報

• CRID: 1390282680146734592
• NII論文ID: 10024473684
• NII書誌ID: AA1045915X
• ISSN: 09122508
• ISSN: 18849172
• ISSN: 09167374
• DOI: 10.2208/prohe.47.313
• Web Site: http://id.nii.ac.jp/1586/00014343/
• データソース種別:
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• 抄録ライセンスフラグ: 使用不可