| Title: | A fundamental study of the performance of X-section cast-in-place concrete single piles |
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| Authors: | ID Wang, Yu (Author)
ID Lv, Yaru (Author)
ID Zhang, Dongdong (Author)
ID Zhou, Jieying (Author)
ID Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Copyright holder) |
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| Files: |  Acta_geotechnica_Slovenica_2016_Wang_et_al._A_fundamental_study_of_the_performance_of_X-section_cast-in-place_concrete_single_piles.pdf (485,57 KB)
MD5: 74CB1741C01CD737F213196EE1A3284B
PID: 20.500.12556/dkum/b1063646-cd77-425d-9718-0dd55da8b9c0
 http://fgserver3.fg.um.si/journal-ags/2016-1/article-4.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: | X-section cast-in-place concrete (XCC) piles are used because they have a higher bearing capacity than circularsection cast-in-place concrete (CCC) piles of the same cross-sectional area. Although the bearing capacity of XCC piles has been studied, the performance of XCC single piles, especially for the stress-transfer mechanism dependent on the geometrical effects, is still not fully understood. This paper reports two comparative field static load tests on an XCC and a CCC single pile of the same cross-sectional area. In addition, corresponding threedimensional numerical back-analyses are performed to provide a fundamental understanding. The measured and computed results reveal that the XCC single pile has an approximately 25% higher ultimate bearing capacity than the CCC single pile. This is because the XCC single pile has an approximately 20% larger total side resistance, which is caused by a 60% larger pile perimeter and a slightly smaller unit side resistance. Lateral soil arching effects are developed, causing a non-uniform effective normal stress and a shear stress across the circumference of the XCC single pile. It is suggested that XCC single piles have a higher efficiency in terms of material saving compared with CCC single piles. |
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| Keywords: | X-section cast-in-place concrete pile, field static load test, three-dimensional numerical back-analysis, stresstransfer mechanism, side resistance, soil arching |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2016 |
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| Number of pages: | str. 39-47 |
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| Numbering: | Letn. 13, št. 1 |
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| PID: | 20.500.12556/DKUM-70859  |
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| ISSN: | 1854-0171 |
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| UDC: | 624.13 |
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| ISSN on article: | 1854-0171 |
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| COBISS.SI-ID: | 302749184 |
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| NUK URN: | URN:SI:UM:DK:IFZN6Q1Z |
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| Copyright: | Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru |
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| Publication date in DKUM: | 15.06.2018 |
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| Views: | 1462 |
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| Downloads: | 210 |
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| Metadata: |    |
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| Categories: | Misc.
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