Showing papers in "Geotechnique in 1955"
2,139 citations
TL;DR: The theories of vertical and horizontal subgrade reaction are based on the simplifying assumptions that the subgrade obeys Hooke's law as mentioned in this paper, and that the reaction on the base of a rigi...
Abstract: Synopsis The theories of vertical and horizontal subgrade reaction are based on the simplifying assumptions that the subgrade obeys Hooke's law, and that the subgrade reaction on the base of a rigi...
629 citations
TL;DR: In this article, theoretical analyses of the influence of ground-water conditions on the bearing capacity of cohesionless material are summarised and compared with the main results of laboratory and some field loading tests on sand.
Abstract: Synopsis Theoretical methods for estimating the effect of roughness of the base on the bearing capacity are outlined in the first part of the Paper and compared with the results of some loading tests on model footings. In the second part of the Paper theoretical analyses of the influence of ground-water conditions on the bearing capacity of cohesionless material are summarised and compared with the main results of laboratory and some field loading tests on sand. Dans la premiere partie du Document I'auteur expose dans leurs grandes lignes les methodes theoriques propres a l'eevaluation de l'effet de la rugosite de la base sur la capacite portant et les compare avec les resultats de certains essais de charge sur des modeles de semelles. Dam la seconde partie du Document, des analyses theoriques de l'influence des conditions avec nappes d'eau souterraines snr la capacite portante des mateeriaux non coherents sont resumees et comparees avecles principaux resultats d'essais en laboratoire et de certains essai...
301 citations
87 citations
TL;DR: The use of circular sliding surfaces in the analysis of stability problems in clay has become very widely adopted, and the history of its early days is therefore a matter of considerable interest, both to specialists in soil mechanics and to civil engineers generally as mentioned in this paper.
Abstract: Synopsis The Paper describes the work at Gothenburg leading to the introduction, in 1916, of the use of circular sliding surfaces in the analysis of stability problems in clay. This assumption has become very widely adopted, and the history of its early days is therefore a matter of considerable interest, both to specialists in soil mechanics and to civil engineers generally. Ce document decrit les travax effectues a Gothenburg et qui ont conduit a l'introduction, en 1916, de l'emploi des surfaces de glissements circulaires pour l'analyse des problemes de la stabilite dans l'argile. Cette hypothese a ete tres largement adoptee par la suite et l'historique de ses debuts est done une question du plus grand interet a la fois pour les specialistes de la mecanique du sol et pour les Ingenieurs du Genie Civil en general.
66 citations
40 citations
TL;DR: The slide at Bekkelaget, October 7th, 1953 as discussed by the authors was described as a big single slide with an even sliding surface parallel to the slope, and the stability calculations have been carried out through a Φ=0 analysis, which gives a factor of safety very close to 1.0.
Abstract: The present article describes the slide at Bekkelaget, October 7th, 1953. This slide took place in quick clay and comprised road and railway embankment in a length of ab. 100 metres and adjacent slope of slight declivity inclination in a distance of ab. 100 metres outside the filling. The gliding out occurred very quickly as a big single slide with an even sliding surface parallel to the slope. Comprehensive borings and laboratory investigations with stability calculations have been performed. Due to the existence of good maps and profiles the slide region could be reconstructed with great accuracy. The stability calculations have been carried out through a Φ=0 analysis, which gives a factor of safety very close to 1,0. No works worth mentioning have been performed on the site since 1920, and the filling must therefore have had a factor of safety close to 1,0 during the last 30 years. During this period no movements have been observed in the road and railway embankment or in the outside slope.
16 citations
12 citations
12 citations
TL;DR: In the last 15 years, injection of cement-sand slurries into the subgrades of unstable railroad track has become a routine method of stabilisation in the United States as discussed by the authors.
Abstract: Synopsis During the last 15 years, injection of cement-sand slurries into the subgrades of unstable railroad track has become a routine method of stabilisation in the United States. This Paper describes the equipment developed for the work, the grouting mixtures used, and the results obtained. Savings in cost of maintenance are, on the average, sufficient to repay the cost of grouting in about 3 years, whereas the benefits generally have continued for many more years. Fills that have become unstable because of accumulation of water in large voids have also been successfully treated by the method. Au cours des quinze dernieres annees, l'injection de coulis de sable et ciment dans les plates-formes de terrassement de voies ferrees est devenu methode courante de stabilisation aux Etats-Unis. Ce document decrit le materiel mis au point pour ce genre de travaux, les melanges de mortiers liquides utilises et les resultats obtenus. Les economies effectuees du point de vue des frais d'entretien sont en moyenne su...