| Title: | Reinforced piled embankment for a high-speed railway over soft soil : a numerical and analytical investigation |
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| Authors: | ID Zhuang, Yan (Author)
ID Cui, Xiaoyan (Author)
ID Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Copyright holder) |
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| Files: |  Acta_geotechnica_Slovenica_2015_Zhuang,_Cui_Reinforced_piled_embankment_for_a_high-speed_railway_over_soft_soil_a_numerical_and_analyti.pdf (578,98 KB)
MD5: 0CB82268705EA693BF2D06445F5AFD4A
PID: 20.500.12556/dkum/d7d9c2d5-c2e4-4e04-8322-d7b8702efe9b
 http://fgserver3.fg.um.si/journal-ags/2015-2/article-5.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: | A geosynthetic, reinforced, piled embankment is an effective and economic method to solve the problems of possible bearing failure, unacceptable settlement and slope instability for an embankment built over soft soil; this has led to its widespread use, especially for high-speed railway embankments. Some design methods have been developed to assess the performance of these reinforced structures, which are mainly based on the results from small-scale models and numerical simulations. However, the reliability of these methods needs to be validated under full-scale field tests. This paper presents a numerical and analytical study for a full-scale field test of the Fengyang high-speed railway embankment. The results were analyzed and discussed in terms of the settlement of subsoil, the stressconcentration ratio (SCR), the axial force and the frictional stress of the pile. They showed that the settlement of the subsoil, from both the finite-element method (FEM) and the analytical method, were in good agreement with the measurement, and thus was a reliable parameter to assess the performance of the piled embankment with reasonable accuracy. The SCR was overestimated by the modified Terzaghi method, with a difference of 25%, while it was underestimated by the FEM, with a difference of approximately 20%. It was also shown that the tensile force in the reinforcement could be effectively assessed using the proposed analytical method, while it was overestimated by the FEM with a difference of 44%. |
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| Keywords: | reinforced piled embankment, high-speed railway, numerical simulation, analytical method |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2015 |
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| Number of pages: | str. 57-65 |
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| Numbering: | Letn. 12, št. 2 |
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| PID: | 20.500.12556/DKUM-70853  |
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| ISSN: | 1854-0171 |
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| UDC: | 624.154 |
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| ISSN on article: | 1854-0171 |
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| COBISS.SI-ID: | 284302080 |
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| NUK URN: | URN:SI:UM:DK:MMJSNCPM |
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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: | 1946 |
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| Downloads: | 347 |
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| Metadata: |    |
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| Categories: | Misc.
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