養浜砂浜海岸域における不圧地下水の動態観測とその意義

• 関口 秀雄

  京都大学防災研究所

• 東 良慶

  京都大学防災研究所

• クリヨ サンボド

  京都大学大学院工学研究科社会基盤工学専攻

書誌事項

タイトル別名

• Field Observations of Unconfined Groundwater Dynamics in a Nourished Sand Beach

抄録

This paper describes the evolutions of sea level and unconfined groundwater table in a nourished sand beach that were measured over one year. Careful time-series analyses identified seasonable variations of the sea level and of the groundwater levels at the three observation wells installed. The groundwater levels proved to be consistently higher landwards, indicating the fresh groundwater discharge (FGD) into the sea. The rate of the FGD was evaluated in two steps. First, the transmissivity of the unconfined aquifer was assessed through analyses of the measured fluctuations of the groundwater levels that responded systematically to four major tidal constituents. Then the identified aquifer constant was incorporated into theoretical equations of FGD and of the related seawater intrusion into the beach.

収録刊行物

• 海岸工学論文集

  海岸工学論文集 54 721-725, 2007

  公益社団法人 土木学会

キーワード

• General Chemical Engineering

詳細情報

• CRID: 1390001204551319424
• NII論文ID: 130003808151
• DOI: 10.2208/proce1989.54.721
• ISSN: 18848222
• ISSN: 09167897
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可