| Title: | Determination of passive earth pressure using three-dimensional failure mechanism |
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| Authors: | ID Vrecl-Kojc, Helena (Author)
ID Škrabl, Stanislav (Author)
ID Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Authorship owner) |
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| Files: |  Acta_geotechnica_Slovenica_2007_Vrecl-Kojc,_Skrabl_Determination_of_passive_earth_pressure_using_three-dimensional_failure_mechanism.pdf (504,97 KB)
MD5: 9FEBC22CD80FCCE5193E812E72D09324
PID: 20.500.12556/dkum/91be351a-c343-48ea-a0b5-5db10aac829e
 http://fgserver3.fg.um.si/journal-ags/2007-1/article-2.asp
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
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| Abstract: | This paper presents a modified three-dimensional (3D) failure mechanism for determining the 3D passive earth pressure coefficient using the upper bound theorem within the framework of the limit analysis theory. The translational kinematically admissible failure mechanism generalized with a depth of h = 1.0 is considered in the analysis. The mechanism geometry presents a volume of rigid blocks composed of the central body and two lateral rigid bodies, which are connected by a common velocity field. The front surface of the central body interacts with the retaining wall, while the upper surface can be loaded by surcharge loading. The lateral body segments represent four- and three-sided polygons in the cross section of the central body; therefore, they define the polygonal failure surface of the central part. At the outer side, each segment of the lateral body is bounded by infinitesimally spaced rigid half-cones that describe the envelope of a family of half-cones. The numerical results of 3D passive earth pressure limit values are presented by non-dimensional coefficients of passive earth pressure influenced by the soil weight Kpg and a coefficient of passive earth pressure influenced by the surcharge Kpq. This research was intended to improve the lowest values obtained until now using the limit analysis theory. The results are presentedin a graphical form depending on the geometrical parameters and soil properties. A brief description of two world-recognized failure mechanisms based on the limit analysis approach, and the comparison of three failure mechanism results are also presented. |
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| Keywords: | soil mechanics, passive earth pressure, upper bound theorem, optimization, three-dimensional failure mechanism |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2007 |
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| Number of pages: | str. 10-23 |
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| Numbering: | Letn. 4, št. 1 |
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| PID: | 20.500.12556/DKUM-70519  |
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| ISSN: | 1854-0171 |
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| UDC: | 624.131.3 |
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| ISSN on article: | 1854-0171 |
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| COBISS.SI-ID: | 11581462 |
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| NUK URN: | URN:SI:UM:DK:8QIFIMCG |
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| Copyright: | Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru |
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| Publication date in DKUM: | 18.05.2018 |
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| Views: | 1083 |
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| Downloads: | 58 |
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| Metadata: |     |
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| Categories: | Misc.
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