Riverbank stability assessment under flooding conditions in the Red River of Hanoi, Vietnam

Thi Toan Duong, Hideo Komine, Minh Duc Do, Satoshi Murakami

研究成果: Article査読

9 被引用数 (Scopus)

抄録

The literature contains limited information on variations in the factors of safety (FOS) of riverbank stability associated with river water level (RWL) fluctuations. This paper analyses a case study on the portion of the Red River flowing through Hanoi using the finite element method and extending the mechanics of saturated and unsaturated soils to understand how the riverbank's FOS varies with RWL fluctuations. The results show that hydrostatic force is one of the key parameters influencing the FOS when the soil's hydraulic conductivity is less than 10-6m/s. However, the pore-water pressure and rate of RWL change are the key parameters influencing the FOS when the hydraulic conductivity is greater than 10-6m/s. The study also indicates that a surcharge of 50kPa or higher significantly weakens the riverbank stability and influences the FOS when the RWL rises. The construction of residential or other structures without taking special protection measures within 50m of the lateral riverbank should be avoided for safety reasons.

本文言語English
ページ(範囲)178-189
ページ数12
ジャーナルComputers and Geotechnics
61
DOI
出版ステータスPublished - 2014 9
外部発表はい

ASJC Scopus subject areas

  • 地盤工学および土木地質学
  • コンピュータ サイエンスの応用

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