Discrete particle modelling as a tool in petroleum rock mechanics

Holt, R.M.; Li, L; Larsen, I.; Gorodkov, S. S.; Alassi, Haitham Tayseer

doi:10.1201/9781439833469.ch72

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A Continuum-discrete Fluid-particle Model1

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2007

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“…These failure modes are difficult to handle based on continuum models, and alternative discrete idealization tools have been used to study the mechanical properties of cemented soils [e.g. Ruistuen, 1997;Holt et al, 2000].…”

Section: A Continuum-discrete Fluid-particle Modelmentioning

confidence: 99%

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Shamy¹

2005

J. Earth. Eng.

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A coupled continuum-discrete hydromechanical model was employed to analyse the effects of cementation on the dynamic response of liquefiable deposits of granular soils. The discrete element method was used to idealise the solid phase and parallel bonds were utilised to model the inter-particle cementations. The pore fluid flow was addressed using averaged Navier-Stokes equations. The conducted simulations revealed a number of salient response patterns and mechanisms. Cemented granular soils were found to be generally highly resistant to liquefaction. However, full cementation of a shallow site may lead to a significant amplification of ground accelerations. A base isolation mechanism develops when a site is partially cemented and mitigates ground shaking hazard. The employed modeling approach provides an effective tool to assess the intricate micro-mechanical response mechanisms of saturated cemented soils.

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Section: A Continuum-discrete Fluid-particle Modelmentioning

confidence: 99%