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Foundation analysis and design
01 Jan 1968-
TL;DR: In this paper, Fondation de soutenagement et al. presented a reference record for Dimensionnement Reference Record created on 2004-09-07, modified on 2016-08-08.
Abstract: Keywords: Fondation ; Mur de soutenement ; Pieux ; Capacite portante ; Ancrage ; Dimensionnement Reference Record created on 2004-09-07, modified on 2016-08-08
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01 Jan 2011
TL;DR: In this article, the authors present a Table of Table of contents of the paper "A Table of the Future" for the paper this article... [1]..
Abstract: ............................................................................................................................. ii Preface ............................................................................................................................... iii Table of
14 citations
TL;DR: In this paper, a numerical parametric study using the finite element program of PLAXIS was performed on single and double anchored sheet piles systems using different types of sandy soil backfill (loose, medium dense, and dense sand).
14 citations
Cites result from "Foundation analysis and design"
...Also, they observed carefully the Table 1 Horizontal wall movement required to achieve active state, Bowles [13]....
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...The horizontal displacements at the upper part of the wall were compared with the values given in Table 1 proposed by Bowles [13], which are sufficient to produce the active state of pressure....
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01 Apr 2010
TL;DR: In this article, the authors investigated the role of the Champlain clay in the formation and migration of water in the region of Lachenaie near Montreal, and showed that the presence of this clay can influence the concentration of Na+ and Cl- ions in the environment.
Abstract: RESUME Les argiles Champlain qui recouvrent la majorite des Basses Terres du Saint-Laurent, et notamment la region de Lachenaie pres de Montreal, ont ete deposees lors de l’episode marin de la mer Champlain il y a environ 10000 ans. Les concentrations des ions Na+ et Cl- dans l’eau interstitielle des argiles ainsi que dans le till et le roc sous-jacents, atteignent parfois 40 % a 50 % de la concentration de ces ions dans l’eau de mer, ce qui rend l’eau souterraine impropre a la consommation et a l’irrigation agricole, ce qui est le cas dans la region de Lachenaie pres de Montreal (Quebec). La presence de ces importantes teneurs en sels dans l’argile et le roc ont souleve plusieurs questions sur la nature des mouvements des eaux souterraines dans les argiles Champlain depuis leur formation ainsi que sur la migration de certains ions majeurs, et specialement des chlorures, durant ces 10000 dernieres annees. Les proprietes geotechniques, hydrauliques et geochimiques des argiles Champlain dans la region de Lachenaie (Quebec) ont ete etudiees afin d’essayer de comprendre les mouvements des eaux et de quelques ions majeurs dans l'argile et le roc sous-jacent.
Pour cela, neuf piezometres ont ete installes dans le roc et dix-huit dans l'argile. L’argile a ete echantillonnee en continu avec des tubes Shelby afin de minimiser le remaniement. Les echantillons d'argile intacte ont ete recueillis, extraits au laboratoire et utilises pour mener des analyses chimiques, isotopiques ainsi que des essais mecaniques et hydrauliques au laboratoire. Deux dispositifs d'extraction de l'eau interstitielle dans l'argile ont ete mis au point afin d’extraire des volumes d’eau sans pour autant influencer les concentrations des ions majeurs et du pH. On a remarque que le premier dispositif permet d’obtenir des echantillons d’eaux interstitielles representatives du milieu pour des pressions d’extraction maximales de 800 kPa. Un second dispositif a ete utilise pour des pressions superieures allant jusqu'a 30 MPa. On a pu constater une importante variation des concentrations et du pH de l’eau a partir de 1 MPa. Suite aux experiences de l’auteur, on recommande que l'eau des piezometres installes dans le roc soit echantillonnee par la methode connue sous le nom de purge et echantillonnage a faible debit et faible rabattement.
Les resultats des analyses chimiques de l'eau ont montre que les eaux interstitielles dans l'argile ainsi que les eaux circulant dans le roc sont des eaux extremement salees et impropres a la consommation et a l'usage agricole.---------- ABSTRACT The Champlain clay that covers most of the Saint-Laurent Lowlands, and in particular the region of Lachenaie near Montreal, was deposited during the marine episode of the Champlain Sea 10000 years ago. The high concentrations of Na+ and Cl- in the clay pore water and in the underlying till and rock, which sometimes reach 40% to 50% of the concentration of sea water, prevent one from using the water for human consumption or agricultural irrigation. The presence of these important contents of salts in the clay and the rock raised several questions about the nature of the movements of ground water in the Champlain clays since their formation as well as on the migration of the major ions, and especially the chlorides, during these last 10000 years. The geotechnical, hydraulic and geochemical properties of the Champlain clay in the region of Lachenaie (Quebec) were investigated in order to understand better the movements of groundwater and some major ions in the clay and the underlying bedrock.
A network composed of nine piezometers in the rock and eighteen in the clay was installed in order to monitor the chemistry of water and to do hydraulic tests. The clay was sampled continuously using Shelby tubes to minimize its reworking. These samples were extracted in the laboratory and used in the chemical and isotopic analysis and in the mechanical and geotechnical tests. Two pore water extractors were then developed in the Hydrogeology laboratory at the Ecole Polytechnique de Montreal: A low pressure and a high pressure device. The low pressure device made it possible to obtain representative pore water samples without affecting the major ions `concentrations and the pH for pressures lower than 800 kPa. The second device uses pressures up to 30 MPa. Large variations in the concentrations of the ions and in the pH were observed when the pressure of extraction exceeded 1 MPa. Also, as a result of the author’s experiments, it is recommended that ground water in the bedrock be sampled using the low-flow purging and sampling method. The results of the chemical analysis of the water samples show that the clay pore water and the water flowing in the underlying bedrock are extremely salty and can’t be used as drinking water or for agriculture.
14 citations
TL;DR: In this article, the authors developed a database containing 461 measured wall horizontal and vertical displacements from 75 fully instrumented soil nail walls under working conditions reported in the literature, and evaluated the accuracies of simplified wall displacement models currently adopted in four national soil nail wall design manuals.
14 citations
TL;DR: In this article, a simplified analytical approach to analyze soil-structure interaction of beam-column elements (i.e., beams, columns, piles, etc.) with generalized end-boundary conditions on a homogeneous or non-homogeneous Pasternak foundation is developed.
13 citations