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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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TL;DR: In this article, the seismic response of unanchored steel liquid storage tanks is investigated using the endurance time (ET) dynamic analysis procedure and compared to responses obtained for anchored tanks under actual ground motions and intensifying ET records.
Abstract: Liquid storage tanks are essential structures that are often located in residential and industrial areas; thus an assessment of their seismic performance is an important engineering issue. In this paper, the seismic response of unanchored steel liquid storage tanks is investigated using the endurance time (ET) dynamic analysis procedure and compared to responses obtained for anchored tanks under actual ground motions and intensifying ET records. In most cases, the results from ground motions are properly obtained with negligible differences using ET records. It is observed that uplifting of the tank base, which is closely related to the tank aspect ratio, has the greatest significance in the responses of the tank and can be predicted with reasonable accuracy by using currently available ET records.
23 citations
TL;DR: In this article, the uncertainties and quality of bearing capacity factor prediction models of shallow foundations are evaluated using a statistical framework that aids in uncertainty quantification and model quality evaluation, and it is shown that the more inaccurate the input parameters are, the more uncertain the estimated model prediction becomes.
23 citations
01 Jan 2012
TL;DR: In this article, a geosynthetic georeinforced geomagnetworks is defined as a set of geogrids that are defined as "forces" that can be either enforced or unreinforced.
Abstract: 在忍受在 georeinforced 上放松粘土似的斜坡的长带地位的能力上增强的 geosynthetic 的效果被调查。用长带地位在之上上的有限元素分析的一系列数字学习的结果增强并且 unreinforced 粘土似的斜坡被介绍。这个工作的目的到：1 ) 在长带地位的熊能力上决定加强的影响邻近的斜坡， 2 ) 建议加强的一个最佳数字并且 3 ) 在 geogrids 增强的粘土似的土壤调查磨擦角度的效果。调查被从斜坡改变地位的边距离执行。geosynthetic 层的另外不同的数字被用于获得最大的适用能力和最小的解决。完成第三个目的，二个不同磨擦角度被使用。结果证明负担解决行为和地位的最终的适用能力能被增强层的包括更加改进。但是使用超过一层加强，最终的适用能力不更加变化。它也被看那为增强并且 unreinforced 斜坡，有边距离的增加的适用的能力增加。另外，当土壤磨擦角度被增加，增强的效率减少。
23 citations
TL;DR: In this article, a parametric analysis of cantilever sheet pile walls is performed under surcharge loading for settlement and deflection through pseudo-static approach using finite difference-based program FLAC2D.
Abstract: Sheet pile walls are used to support moderate height of excavation. If bracing system or anchors are not provided, it gets stability mainly from passive earth resistance below the dredge line. Non-availability of large open space in metro cities gives the perception to engineers to go deeper in the earth and use sheet pile walls for supporting various types of works like parking space and housing utilities. To avoid the damage to surrounding structure, proper analysis of settlement and deflection of the wall should be carried out. The deflection and settlement of wall depend on soil properties, depth of excavation and wall properties. In the present study, cantilever sheet pile walls are analyzed under surcharge loading for settlement and deflection through pseudo-static approach using finite difference-based program FLAC2D. A parametric study is carried out assuming an elastic–perfectly plastic Mohr–Coulomb model with non-associated flow rule by varying the seismic coefficients, embedded depth, soil–wall friction angle, type of soil, magnitude of surcharge and distance from the top of the wall. The results show that by increasing the coefficient of horizontal seismic acceleration, the deflection and settlement of cantilever sheet pile walls increase. It is also observed that with an increase in distance of surcharge from top of the wall, both settlement and deflection decrease.
23 citations
TL;DR: In this article, the bearing capacity factor was assessed using 60 estimation methods for rough footings on sand subjected to static vertical loading, and the influence on the Nγ values o...
Abstract: The range of variation of the bearing capacity factor, Nγ, was assessed using 60 estimation methods for rough footings on sand subjected to static vertical loading. The influence on the Nγ values o...
23 citations
Cites background from "Foundation analysis and design"
...If, in addition, the influence on of the level of stress (Bowles 1996) and intermediary principal stress (Meyerhof 1963) is also considered, along with the influence on the factor N of the dilatancy angle, (Borst and Vermeer 1984; Frydman and Burd 1997; Yin et al....
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