5 results for “Daniel Dias”

Research ArticleOpen accessIn the author namesSpread Foundations on Rigid Inclusions Subjected to Complex Loading: Comparison of 3D Numerical and Simplified Analytical ModellingDaniel Dias, Bruno SimonThis paper relates results of a large number of 3D numerical models of a single spread footing over a soil reinforced by four rigid inclusions and submitted to a large set of complex loading. This numerical study using the FLAC 3D software was done under funding of the ASIRI research project in an aim to support appropriate guidelines for design … …American Journal of Applied Sciences, Vol. 12, Issue 8 · 12 Sep 2015 · 6,850 accessesView PDF Cite

Research ArticleOpen accessIn the author namesKey Factors in the Face Stability Analysis of Shallow TunnelsDaniel Dias, Pierpaolo OresteStability of the excavation face in shallow tunnels and in poor ground is at present a relevant problem in tunnelling. A new calculation procedure is illustrated in this study for the analysis of the effect on the face stability in shallow tunnels of the following key factors: pre-support structures, presence of groundwater, free length of the tunnel (length of the … …American Journal of Applied Sciences, Vol. 10, Issue 9 · 24 Aug 2013 · 7,022 accessesView PDF Cite

Research ArticleOpen accessIn the author names3D Modelling for Mechanized Tunnelling in Soft Ground-Influence of the Constitutive ModelNgoc-Anh Do, Daniel Dias, Pierpaolo Oreste, Irini Djeran-MaigreThe main purpose of this study was to provide a three-dimensional numerical model which would allow to show the influence of the constitutive model of the ground on the tunnel lining behaviour and displacement field surrounding the tunnel. Most of the processes that occur during mechanized excavation have been simulated in this model. Besides the well-known elastic linear perfectly plastic … …American Journal of Applied Sciences, Vol. 10, Issue 8 · 24 Jul 2013 · 8,377 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordFollowing the Heart: The History of the J-Curve in Stroke RiskShoshana Reshef, Daniel ReshefReports of a J-shaped relationship between blood pressure and ischemic stroke are rare. The purpose of this study was to trace the published history of the J-curve theory as it relates to blood pressure, ischemic heart disease and eventually ischemic stroke. The J-curve publications on the relationship between Diastolic Blood Pressure (DBP) and ischemic stroke suggest that in certain populations, … …American Journal of Pharmacology and Toxicology, Vol. 3, Issue 1 · 31 Mar 2008 · 7,359 accessesView PDF Cite