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Title:A simplified method to analyze pile-supported and geosynthetic-reinforced embankments and the influence significance analysis of the design parameters
Authors:ID Feicheng, Liu (Author)
ID Jianjing, Zhang (Author)
ID Shijie, Yan (Author)
ID Licong, Cao (Author)
ID Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Copyright holder)
Files:.pdf Acta_geotechnica_slovenica_2018_Feicheng_et_al._A_simplified_method_to_analyze_pile-supported_and_geosynthetic-reinforced_embankments_an.pdf (1,23 MB)
MD5: F5E69FBE005C1C2B590552FCA92DFC7D
PID: 20.500.12556/dkum/b3c4e874-78b7-40f9-bb88-757465850a27
 
URL http://fgserver6.fg.um.si/journal-ags/2018-1/article-5.asp
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Abstract:A simplified method for evaluating a pile-supported embankment reinforced with geosynthetic (PGRS embankment) is proposed in this paper. The method takes into account not only the arching effect, the membrane effect of the deflected geosynthetic, and the subsoil reaction, but also the pile head settlement, which makes the method applicable for floating piles, as well as piles seated on a firm soil layer. The settlement of the subsoil surface is considered to consist of two parts: (a) the settlement of the subsoil surface equals that of the pile cap with no deformation in geosynthetic yet; (b) the subsoil surface subsides along with the geosynthetic deforming, and the deflected geosynthetic being considered as catenary shaped. The formula for the maximum differential settlement between the subsoil surface and the piles is worked out by analyzing the force equilibrium of the geosynthetic and the stress-strain relationship of the geosynthetic at the edge of the pile cap. The comparison of the calculated results with the observed data and the six current analytical methods has been implemented to verify the proposed method. The influence of the tensile stiffness of the geosynthetic, compression modulus of soft soil, soft soil thickness, embankment height, internal friction angle of the embankment fill and the pile spacing on the subsoil reaction, the stress concentration ratio (SCR) and the tension of the geosynthetic are investigated using the proposed method. The influence significance of these factors has been investigated using the evaluation theory of binary variance analysis for the non-repeatability tests, which helps optimize the design of the PGRS embankment.
Keywords:pile-supported embankment, geosynthetic, simplified method, influence significance, binary variance analysis
Publication status:Published
Publication version:Version of Record
Year of publishing:2018
Number of pages:str. 55-75
Numbering:Letn. 15, št. 1
PID:20.500.12556/DKUM-72666 New window
ISSN:1854-0171
ISSN on article:1854-0171
COBISS.SI-ID:305183232 New window
DOI:10.18690/actageotechslov.15.1.55-75.2018 New window
NUK URN:URN:SI:UM:DK:G6Q0PH01
Copyright:Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru
Publication date in DKUM:11.10.2018
Views:1392
Downloads:512
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
FEICHENG, Liu, JIANJING, Zhang, SHIJIE, Yan and LICONG, Cao, 2018, A simplified method to analyze pile-supported and geosynthetic-reinforced embankments and the influence significance analysis of the design parameters. Acta geotechnica Slovenica [online]. 2018. Vol. 15, no. 1, p. 55–75. [Accessed 8 April 2025]. DOI 10.18690/actageotechslov.15.1.55-75.2018. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=72666
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Record is a part of a journal

Title:Acta geotechnica Slovenica
Shortened title:Acta geotech. Slov.
Publisher:Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru
ISSN:1854-0171
COBISS.SI-ID:215987712 New window

Secondary language

Language:Slovenian
Title:Poenostavljena metoda za analiziranje nasipov, podprtih s piloti in geosintetsko ojačitvijo, ter analiza vpliva pomembnosti projektnih parametrov
Abstract:V tem članku je predlagana poenostavljena metoda za ovrednotenje nasipa, podprtega s piloti in ojačenim z geosintetikom (PGRS nasip). Metoda upošteva poleg ločnega učinka, membranskega učinka odklonjenega geosintetika in reakcije tal, tudi posedek glave pilota. Zaradi slednjega se metoda lahko uporablja tako za viseče pilote kot tudi za pilote, ki stojijo na trdnem zemljinskem sloju. Posedek sloja zemljine pod površjem je sestavljen iz dveh delov: (a) posedka sloja zemljine pod površjem, ki je enak posedku glave pilota brez deformacij v geosintetiku; (b) ugrezka sloja zemljine pod površjem zaradi deformiranja geosintetika, pri čemer je upoštevana deformirana oblika za geosintetik enaka obliki deformacije vrvi. Enačba za največji diferencialni posedek med površino podlage in piloti je dobljena s pomočjo analize ravnotežja sil geosintetika in razmerja napetost-specifična deformacija geosintetika na robu glave pilota. Za preveritev predlagane metode je bila izvedena primerjava izračunanih rezultatov z opazovanimi podatki in šestimi trenutnimi analitskimi metodami. Z uporabo predlagane metode je bil preučevan vpliv natezne togosti geosintetika, kompresijskega modula mehke zemljine, debeline mehke zemljine, višine nasipa, notranjega kota trenja nasipnega materiala in razmika pilotov na reakcijo zemljine, razmerja koncentracije napetosti (SCR) in napetosti geosintetika. Učinek teh faktorjev je bil raziskan z uporabo teorije vrednotenja binarne analize variance za neponovljive preizkuse, kar pomaga optimirati načrtovanje PGRS nasipa.
Keywords:nasip podprt s piloti, geosintetična, poenostavljena metoda, vpliv pomembnosti, binarna analiza variance


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