Journal of geotechnical and geoenvironmental engineering, Vol. 135 N° 11. Journal of geotechnical and geoenvironmental engineering - Novembre 2009
| Titre : | Journal of geotechnical and geoenvironmental engineering, Vol. 135 N° 11. Journal of geotechnical and geoenvironmental engineering - Novembre 2009 |
| Type de document : | Bulletin |
| Paru le : | 29/12/2009 |
Dépouillements
Article : texte imprimé
A. Bobet, Auteur ;
A. Fakhimi, Auteur ;
S. Johnson, Auteur
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The paper presents a description of the methods used to model rock as discontinuous media. The objective of the work is to bring to the geomechanics community recent advances in numerical modeling in the field of rock mechanics. The following me[...]
Article : texte imprimé
Sami O. Akbas, Auteur ;
Fred H. Kulhawy, Auteur
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The results of 167 full-scale field load tests were used to examine several issues related to the load-displacement behavior of footings in cohesionless soils under axial compression loading, including (1) method to interpret the “failure load” [...]
Article : texte imprimé
Sami O. Akbas, Auteur ;
Fred H. Kulhawy, Auteur
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An extensive database of full-scale field load tests was used to examine the bearing capacity for footings in cohesionless soils. Each load test curve was evaluated consistently to determine the interpreted failure load (i.e., bearing capacity) [...]
Article : texte imprimé
Bengt H. Fellenius, Auteur ;
Sung-Ryul Kim, Auteur ;
Sung-Gyo Chung, Auteur
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The development of strain in two 31 and 56 m long instrumented postdriving grouted cylinder piles at a site west of Busan, South Korea, were monitored during 200 days after construction, whereupon a static loading test was performed. Initial str[...]
Article : texte imprimé
Jong-Sik Park, Auteur ;
Yong-Sun Joo, Auteur ;
Kim, Nak-Kyung, Auteur
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This study discusses the new earth retention system with prestressed wales. The prestressed wale provides a high flexural stiffness that resists bending caused by lateral earth pressures. The prestressed wale system consists of wales, steel wire[...]
Article : texte imprimé
Debra F. Laefer, Auteur ;
Seyit Ceribasi, Auteur ;
James H. Long, Auteur
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In many tunneling and excavation projects, free-field vertical ground movements have been used to predict subsidence, and empirical limits have been employed to evaluate risk. Validity of such approaches is largely unknown given that ground move[...]
Article : texte imprimé
Amy B. Cerato, Auteur ;
Gerald A. Miller, Auteur ;
Jumanah A. Hajjat, Auteur
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Volume changes due to wetting may occur in naturally deposited soils as well as earthen construction (e.g., compacted fills or embankments). Depending on the stress level, some soils exhibit increase in volume upon wetting (swell) while others m[...]
Article : texte imprimé
D. V. Griffiths, Auteur ;
Gordon A. Fenton, Auteur
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The paper discusses finite element models for predicting the elastic settlement of a strip footing on a variable soil. The paper then goes on to compare results obtained in a probabilistic settlement analysis using a stochastic finite element me[...]
Article : texte imprimé
Michael C. Palmer, Auteur ;
Thomas D. O’Rourke, Auteur ;
Nathaniel A. Olson, Auteur
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This paper provides an assessment of tactile pressure sensors for geotechnical applications. A tactile pressure sensor is an array of small sensing units, called sensels, embedded in a polymeric sheet or pad that measures the magnitude and distr[...]
Article : texte imprimé
Jason T. DeJong, Auteur ;
Zachary J. Westgate, Auteur
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Difficulty in predicting the transfer of load from a structural element to the surrounding soil has limited the reliability of geotechnical design and performance. The remaining uncertainty in load transfer mechanics is primarily due to the loca[...]
Article : texte imprimé
Hossam M. Abuel-Naga, Auteur ;
Abdelmalek Bouazza, Auteur
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Numerical experiments were conducted to understand the effect of geometric and transport characteristics of a geomembrane-geosynthetic clay liner (GM/GCL) composite liner on gas leakage rate through a circular defect in the geomembrane (GM). The[...]
Article : texte imprimé
Ahmed Elgamal, Auteur ;
Jinchi Lu, Auteur ;
Davide Forcellini, Auteur
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Finite-element (FE) simulations are increasingly providing a versatile environment for conducting lateral ground deformation studies. In this environment, mitigation strategies may be assessed in order to achieve economical and effective solutio[...]
Article : texte imprimé
Hossein Hayati, Auteur ;
Ronald D. Andrus, Auteur
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Data from over 30 sites in 5 countries are analyzed to develop updated factors for correcting liquefaction resistance for aged sand deposits. Results of cyclic laboratory tests on relatively undisturbed and reconstituted specimens suggest an inc[...]
Article : texte imprimé
Kirk C. Ellison, Auteur ;
José E. Andrade, Auteur
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Recent criteria have been developed to describe the onset of static liquefaction in constitutive models. This paper expands the theory to a finite-element framework in order to predict potentially unstable regions in granular soils at the engine[...]
Article : texte imprimé
Patricia M. Gallagher, Auteur ;
Yuanzhi Lin, Auteur
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Mitigation of liquefaction potential in loose granular soil can theoretically be achieved through permeation and subsequent gelation of dilute colloidal silica stabilizer. However, practical application of this technique requires efficient and a[...]
Article : texte imprimé
J. A. Cholewa, Auteur ;
R. W. I. Brachman, Auteur ;
I. D. Moore, Auteur
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Pipe bursting is a construction technique that involves the replacement of an existing buried pipe with potentially much less surface disturbance than traditional cut and cover construction. However, excessive ground movements associated with pi[...]
Article : texte imprimé
Scott M. Munro, Auteur ;
Ian D. Moore, Auteur ;
Richard W. I. Brachman, Auteur
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Two 381 mm (15 in. nominal) diameter fiber reinforced cement pipes have been tested under embankment loading conditions to study pipe response in both low stiffness, fine grained backfill, and a high stiffness graded granular backfill. Pipe defo[...]
Article : texte imprimé
J. A. Priest, Auteur ;
W. Powrie, Auteur
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The measurement of track stiffness, or track modulus, is an important parameter for assessing the condition of a railway track. This paper describes a method by which the dynamic track modulus can be determined from the dynamic displacements of [...]
Article : texte imprimé
Yuri D. Costa, Auteur ;
Jorge G. Zornberg, Auteur ;
Benedito S. Bueno, Auteur
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An experimental testing program was undertaken to investigate failure mechanisms induced by the active movement of a deep rectangular trapdoor underlying a granular soil. Reduced-scale models were tested under normal gravity as well as under an [...]
Article : texte imprimé
Y. M. Cheng, Auteur ;
Z. N. Liu, Auteur ;
W. D. Song, Auteur
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Underground mine caving may induce collapse of the ground during ore caving, particularly when there is a loose material on top of the mine. In the present paper, a laboratory test is performed to model this mining problem which is followed by a[...]
Article : texte imprimé
P. K. Robertson, Auteur
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Although the cone penetration test (CPT) and flat-plat dilatometer test (DMT) have been used for over 30 years, relatively little has been published regarding comprehensive correlations between the two in situ tests. This paper presents prelimin[...]
Article : texte imprimé
Mohamed Ashour, Auteur ;
Gary Norris, Auteur ;
Tung Nguyen, Auteur
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The technique presented deals with the assessment, based on drained test behavior and formulation, of the undrained postcyclic stress-strain behavior of sands under limited or complete (full) liquefaction and its associated strength. At present,[...]
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