Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical Study on the Cavity-Induced Piping Failure of Embankment
Cavities are frequently found beneath conduits on pile foundations in old embankments. Cavity reduces seepage length significantly and consequently causes piping failure of embankments. Case studies of embankment failures indicate that the relative settlement between ground and pile supported-concrete conduit was the main reason of the cavity. In this paper, an attempt to simulate the cavity-induced piping failure mechanism was made using finite element numerical method. Piping potential is examined by carrying out parametric study for influencing factors such as cavity length, water level, and flow conditions. The concentration of hydraulic gradient adjacent to cavity was found. It is found that the hydraulic gradient close to the cavity exceeds considerably the critical hydraulic gradient causing piping. Piping failure potential due to the existence of cavity is evaluated and contour map for the potential risk of an embankment for piping failure is proposed.
Numerical Study on the Cavity-Induced Piping Failure of Embankment
Cavities are frequently found beneath conduits on pile foundations in old embankments. Cavity reduces seepage length significantly and consequently causes piping failure of embankments. Case studies of embankment failures indicate that the relative settlement between ground and pile supported-concrete conduit was the main reason of the cavity. In this paper, an attempt to simulate the cavity-induced piping failure mechanism was made using finite element numerical method. Piping potential is examined by carrying out parametric study for influencing factors such as cavity length, water level, and flow conditions. The concentration of hydraulic gradient adjacent to cavity was found. It is found that the hydraulic gradient close to the cavity exceeds considerably the critical hydraulic gradient causing piping. Piping failure potential due to the existence of cavity is evaluated and contour map for the potential risk of an embankment for piping failure is proposed.
Numerical Study on the Cavity-Induced Piping Failure of Embankment
H. J. Kim (Autor:in) / G. C. Park (Autor:in) / K. C. Kim (Autor:in) / J. H. Shin (Autor:in)
19.01.2016
oai:zenodo.org:1338882
International Journal of Earth, Energy and Environmental Sciences 9.0(12)
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC:
621
Catastrophic Embankment Piping Failure of Saskatchewan Provincial Highway No. 16
| British Library Conference Proceedings | 2008
Reliability analysis of piping in embankment dam
| British Library Conference Proceedings | 2010
Risk Assessment for Embankment Dams - Assessment of the Probability of Failure by Piping
| British Library Conference Proceedings | 1999