Characteristics of Non-Cohesive Embankment Failure

4th International Conference on Civil and Environmental Engineering for Sustainability

地球科学;生态环境科学;经济学

Yusof, Z.M.^1 ; Wahab, A.K.A.^1 ; Ismail, Z.^1 ; Amerudin, S.^2

Department of Hydraulics and Hydrology, Faculty of Civil Engineering, Universiti Teknologi Malaysia, UTM Johor Bahru

81310, Malaysia^1

Department of Geoinformation, Faculty of Geoinformation and Real Estate, Universiti Teknologi Malaysia, UTM Johor Bahru

81310, Malaysia^2

关键词: Embankment failure;    Embankment height;    Inflow rate;    Medium grains;    Noncohesive soil;    Peak discharge;    Potential failure modes;    Sediment grain size;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/140/1/012044/pdf
DOI  :  10.1088/1755-1315/140/1/012044

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Embankments are important infrastructure built to provide flood control. They also present risks to property and life due to their potential to fail and cause catastrophic flooding. To mitigate these risks, authorities and regulators need to carefully analyse and inspect dams to identify potential failure modes and protect against them. This paper presents morphology of an embankment study and its sediment behaviour of different grain sizes after the embankment fails. A few experiments were carried out for the embankment size of 1V:3H with different sediment grain sizes; medium and coarser sand. The embankment material used is non-cohesive soil with the embankment height of 0.1 m. The embankment is tested with inflows rate of Q = 0.8 L/s. Experimental results showed the peak discharge for the same inflow rate is affected by the shape of embankment breached. The peak discharge of medium grain size of the embankment is highest, which gave 3.63 L/s in comparison with a coarser embankment. This concludes that the embankment morphology patterns are dissimilar to each other. The flow and dimension of embankment are shown to influence the characteristics of embankment failure.