A numerical study of reinforced embankments supported by encased floating columns

IF 0.5 4区工程技术 Q4 ENGINEERING, GEOLOGICAL Acta Geotechnica Slovenica Pub Date : 2019-01-01 DOI:10.18690/actageotechslov.16.2.25-38.2019

M. R. Kahyaoğlu, M. Vaníček

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引用次数: 4

Abstract

This paper presents a three-dimensional, finite-element, parametric study of a base-reinforced embankment supported by encased floating columns on soft soil. A 3D numerical model is made to study the effects of geogrid basal reinforcement and geotextile encasement on the displacement behavior of the columns. The numerical model was initially verified using measured data from a real case study. Then, parametric studies were subsequently performed, considering the effect of the encasement stiffness, the basal reinforcement stiffness and the embankment fill height, together with an examination of the effective length of the encasement. The results from this parametric study are presented here in the form of comparative graphs. The objective of this paper is to present the behavior of the embankment on floating encased columns after the soft soil consolidation for different embankment heights, basal reinforcement and column-encasement stiffnesses. Mehmet Rifat Kahyaoğlu (corresponding author) Muğla Sitki Kocman University, Engineering Faculty, Department of Civil Engineering 48000, Mentese-Muğla, Turkey E-mail: rkahyaoglu@mu.edu.tr Martin Vaníček Geosyntetika Ltd. N.Tesla str. 3, 160 00 Praha 6, The Czech Republic E-mail: mvanicek@geosyntetika.cz

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封闭浮柱支撑加固路堤的数值研究

本文对软土地基上的封闭式浮柱基础加筋路堤进行了三维有限元参数化研究。建立了三维数值模型，研究了土工格栅基础加筋和土工织物包裹对柱位移特性的影响。数值模型通过实际案例的实测数据进行了初步验证。然后，随后进行了参数化研究，考虑了围护结构刚度、基础钢筋刚度和路堤填方高度的影响，并对围护结构的有效长度进行了检查。这个参数研究的结果在这里以比较图的形式呈现。本文的目的是介绍软土固结后，在不同的路堤高度，基础配筋和柱围封刚度下，浮箱柱路堤的性能。Mehmet Rifat Kahyaoğlu(通讯作者)Muğla Sitki Kocman大学工程学院土木工程系48000 Mentese-Muğla，土耳其E-mail: rkahyaoglu@mu.edu.tr Martin Vaníček Geosyntetika Ltd捷克共和国普拉哈6号，特斯拉街316000号，电子邮件:mvanicek@geosyntetika.cz

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来源期刊

Acta Geotechnica Slovenica 地学-工程：地质

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： ACTA GEOTECHNICA SLOVENICA aims to play an important role in publishing high-quality, theoretical papers from important and emerging areas that will have a lasting impact on fundamental and practical aspects of geomechanics and geotechnical engineering. ACTA GEOTECHNICA SLOVENICA publishes papers from the following areas: soil and rock mechanics, engineering geology, environmental geotechnics, geosynthetic, geotechnical structures, numerical and analytical methods, computer modelling, optimization of geotechnical structures, field and laboratory testing. The journal is published twice a year.