Results 101 to 110 of about 3,099 (160)

Equivalent diameter of a prefabricated vertical drain

Geotextiles and Geomembranes, 2009
The aim of this study is to evaluate numerically the equivalent diameter of a prefabricated vertical drain (PVD) using an equal flow rate approach. This approach requires that the equivalent circular well to be able to yield similar discharge as a PVD well when subjected to similar pressure-controlled pumping condition.
Abuel-Naga, Hossam, Bouazza, Abdelmalek
openaire   +3 more sources

Asymmetric gate-induced drain leakage and body leakage in vertical MOSFETs with reduced parasitic capacitance

IEEE Transactions on Electron Devices, 2006
Vertical MOSFETs, unlike conventional planar MOSFETs, do not have identical structures at the source and drain, but have very different gate overlaps and geometric configurations.
V D Kunz, T Uchino, C H De Groot
exaly   +1 more source

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The Draining of a Vertical Plate

Mathematical Proceedings of the Cambridge Philosophical Society, 1930
When a vessel of liquid has been emptied and put aside, a thin film of liquid clings to the inside and gradually drains down to the bottom under the action of gravity. The layer being thin, the motion is very nearly laminar flow, and the curvature of the surface in a horizontal direction may be ignored.
openaire   +1 more source

Self-Similar Draining near a Vertical Edge

Physical Review Letters, 2020
When a liquid film drains on a vertical plate, the film becomes nonuniform near the vertical edge. Here we experimentally report the three-dimensional (3D) self-similar shape of this film. Based on the well-known 2D self-similar solution of a draining film far from the edge, we identify a new 3D self-similar scaling, which converts the partial ...
Nan Xue, Howard A. Stone
openaire   +2 more sources

Design Curves for Prefabricated Vertical Drains

Journal of Geotechnical and Geoenvironmental Engineering, 1997
Vertical drains and preloading are very effective and economical ground modification techniques for accelerating primary consolidation and compensating some secondary compression of soft compressib...
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Consolidation of double‐layered ground with vertical drains

International Journal for Numerical and Analytical Methods in Geomechanics, 2001
AbstractVertical drains are usually installed in subsoil consisting of several layers. Due to the complex nature of the problem, over the past decades, the consolidation properties of multi‐layered ground with vertical drains have been analysed mainly by numerical methods.
Tang, Xiao-Wu, Onitsuka, Katsutada
openaire   +1 more source

Installation Stress in Prefabricated Vertical Drains

Journal of Geotechnical and Geoenvironmental Engineering, 2003
Prefabricated vertical drains (PVDs) normally consist of a core and a filter (sleeve) made with polymeric materials. Modern installation rigs are capable of installing them at considerable speed in soft soil deposits. This note reports the tension developed in a PVD filter sleeve during the installation process, which was monitored with strain gauges ...
Karunaratne, G.P., Chew, S.H., Leong, K.W., Wong, W.K., Lim, L.H., Yeo, K.S., Hee, A.M.   +6 more
openaire   +1 more source

Recent Advances in Prefabricated Vertical Drains

Ports 2013, 2013
Modern port development on the US East Coast and Gulf Coast many times takes place on soft and compressible sites. As such, ground improvement is employed to meet project design criteria. Due to the relative economy of implementing surcharge combined with prefabricated vertical drains, the use of prefabricated vertical drains is growing.
A. D. Goldberg, M. A. Palmatier
openaire   +1 more source

Draining Collars and Lenses in Liquid-Lined Vertical Tubes

Journal of Colloid and Interface Science, 2000
The speed at which an annular liquid collar drains under gravity g in a vertical tube of radius a, when the tube has an otherwise thin viscous liquid lining on its interior, is determined by a balance between the collar's weight and viscous shear stresses confined to narrow regions in the neighborhood of the collar's effective contact lines.
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The efficiency of partially penetrating vertical drains

Géotechnique, 1985
The Paper deals with the problem of consolidation of a clay layer in which vertical partially penetrating drains have been installed. The influence of well resistance is considered in the analysis, which is performed by means of the finite element method. The drainage pattern for each drain is assumed to be axisymmetric. Diagrams of the average degree
K. Runesson, S. Hansbo, N. E. Wiberg
openaire   +1 more source