Numerical analyses of surface and internal erosion of soil structures

K. Fujisawa, S. Nishimura, A. Murakami

Research output: Contribution to conferencePaper

Abstract

The failure of embankments, such as levees and embankment dams, due to overflow is a topic concerning the surface erosion, while the piping phenomenon is governed by the internal erosion. This paper presents several examples of numerical analyses on such phenomena, introducing the concept of erosion rate which is defined as the volume of soil particles eroded form unit surface area within unit time. The rate can be experimentally determined as a function of the force exerted by the fluid. The results of the numerical analyses have shown that the profiles of the embankment subject to overflow and the time required for the failure are predictable and that the development of piping within soil structures can be simulated.

Original languageEnglish
Publication statusPublished - Dec 1 2011
Event14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2011 - Hong Kong, China
Duration: May 23 2011May 27 2011

Other

Other14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2011
CountryChina
CityHong Kong
Period5/23/115/27/11

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ASJC Scopus subject areas

  • Soil Science
  • Geotechnical Engineering and Engineering Geology

Cite this

Fujisawa, K., Nishimura, S., & Murakami, A. (2011). Numerical analyses of surface and internal erosion of soil structures. Paper presented at 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2011, Hong Kong, China.