Volume 11, Number 1 and B (Transaction B: Geotechnical Engineering, May 2013)                   IJCE 2013, 11(1 and B): 38-44 | Back to browse issues page

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Luo Y L. A continuum fluid particle coupled piping model based on solute transport. IJCE. 2013; 11 (1) :38-44
URL: http://ijce.iust.ac.ir/article-1-555-en.html

Abstract:   (15526 Views)

The occurrence of piping failures in earth structures demonstrates the urgency and importance of studying piping. With this

intention, a new piping model was developed in the framework of continuum mixture theory. Assuming that porous media are

comprised of solid skeleton phase, fluid phase and fluidized fine particles phase, the fluidized fine particles phase is considered

to be a special solute migrating with the fluid phase. The three phases interact while being constrained by the mass conservation

equations of the three phases, and a sink term was introduced into the mass conservation equation of the solid skeleton phase to

describe the erosion of fluidized fine particles, then a new continuum fluid-particle coupled piping model was established and

validated. The validation indicates that the proposed model can predict the piping development of complicated structures under

complex boundary and flow conditions, and reflect the dynamic changes of porosity, permeability and pore pressure in the

evolution of piping.

Full-Text [PDF 1603 kb]   (1696 Downloads)    
Type of Study: Research Paper | Subject: Soil Mechanics Classic

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