Probability of Local Liquefaction of Saturated Sands in Half-Space Domains under a Train of Surface Point Explosions

Probability of Local Liquefaction of Saturated Sands in Half-Space Domains under a Train of Surface Point Explosions

The probability of liquefaction in saturated sand deposits subjected to a train of shear stress pulses propagating from a point blast source applied at the boundary surface of the elastic medium is investigated. The load effect is evaluated in approximate closed form using three-dimensional tensoria...

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Main Author: Luis A. de Béjar
Format: Article
Language:English
Published: Hindawi Limited 2010-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.3233/SAV-2010-0494
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spelling doaj-b741b4a4b2404a99a709e5dc316e44562020-11-25T01:08:30ZengHindawi LimitedShock and Vibration1070-96221875-92032010-01-0117111910.3233/SAV-2010-0494Probability of Local Liquefaction of Saturated Sands in Half-Space Domains under a Train of Surface Point ExplosionsLuis A. de Béjar0Geotechnical and Structures Laboratory, US Army Engineer Research and Development Center, ATTN: CEERD-GS-M (Bldg. 5008), 3909 Halls Ferry Road, Vicksburg, MS 39180-6199, USAThe probability of liquefaction in saturated sand deposits subjected to a train of shear stress pulses propagating from a point blast source applied at the boundary surface of the elastic medium is investigated. The load effect is evaluated in approximate closed form using three-dimensional tensorial mathematical physics in polar cylindrical coordinates. The adopted criterion of liquefaction has been experimentally verified both in the laboratory and in the field when continua of saturated sands were subjected to equivalent cyclic shear stress due to earthquake excitation. A first-order second-moment technique for the probabilistic assessment of the liquefaction potential in practical situations is developed and implemented in a computer program. Parametric studies are conducted to examine the sensitivity of results to the second-moment characterization of intervening key physical quantities.http://dx.doi.org/10.3233/SAV-2010-0494
collection DOAJ
language English
format Article
sources DOAJ
author Luis A. de Béjar
spellingShingle Luis A. de Béjar
Probability of Local Liquefaction of Saturated Sands in Half-Space Domains under a Train of Surface Point Explosions
Shock and Vibration
author_facet Luis A. de Béjar
author_sort Luis A. de Béjar
title Probability of Local Liquefaction of Saturated Sands in Half-Space Domains under a Train of Surface Point Explosions
title_short Probability of Local Liquefaction of Saturated Sands in Half-Space Domains under a Train of Surface Point Explosions
title_full Probability of Local Liquefaction of Saturated Sands in Half-Space Domains under a Train of Surface Point Explosions
title_fullStr Probability of Local Liquefaction of Saturated Sands in Half-Space Domains under a Train of Surface Point Explosions
title_full_unstemmed Probability of Local Liquefaction of Saturated Sands in Half-Space Domains under a Train of Surface Point Explosions
title_sort probability of local liquefaction of saturated sands in half-space domains under a train of surface point explosions
publisher Hindawi Limited
series Shock and Vibration
issn 1070-9622
1875-9203
publishDate 2010-01-01
description The probability of liquefaction in saturated sand deposits subjected to a train of shear stress pulses propagating from a point blast source applied at the boundary surface of the elastic medium is investigated. The load effect is evaluated in approximate closed form using three-dimensional tensorial mathematical physics in polar cylindrical coordinates. The adopted criterion of liquefaction has been experimentally verified both in the laboratory and in the field when continua of saturated sands were subjected to equivalent cyclic shear stress due to earthquake excitation. A first-order second-moment technique for the probabilistic assessment of the liquefaction potential in practical situations is developed and implemented in a computer program. Parametric studies are conducted to examine the sensitivity of results to the second-moment characterization of intervening key physical quantities.
url http://dx.doi.org/10.3233/SAV-2010-0494
work_keys_str_mv AT luisadebejar probabilityoflocalliquefactionofsaturatedsandsinhalfspacedomainsunderatrainofsurfacepointexplosions
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