Numerical analyses of surface and internal erosion of soil structures

K. Fujisawa, Shin-ichi Nishimura, A. Murakami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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
Title of host publication14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering
Publication statusPublished - 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

Fingerprint

dams (hydrology)
piping
soil structure
embankment
soil erosion
Erosion
surface area
Embankments
erosion
Soils
embankment dam
erosion rate
soil
Embankment dams
Levees
fluid
Fluids
fluids
rate
particle

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. In 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering

Numerical analyses of surface and internal erosion of soil structures. / Fujisawa, K.; Nishimura, Shin-ichi; Murakami, A.

14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering. 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fujisawa, K, Nishimura, S & Murakami, A 2011, Numerical analyses of surface and internal erosion of soil structures. in 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering. 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2011, Hong Kong, China, 5/23/11.
Fujisawa K, Nishimura S, Murakami A. Numerical analyses of surface and internal erosion of soil structures. In 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering. 2011
Fujisawa, K. ; Nishimura, Shin-ichi ; Murakami, A. / Numerical analyses of surface and internal erosion of soil structures. 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering. 2011.
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