The performance of a sand column internally reinforced with horizontal reinforcement layers
學年 102
學期 1
出版（發表）日期 2013-11-01
作品名稱 The performance of a sand column internally reinforced with horizontal reinforcement layers
作品名稱（其他語言）
著者 Hong, Yung-Shan; Wu, Cho-Sen
單位 淡江大學土木工程學系
出版者 London: Elsevier Ltd
著錄名稱、卷期、頁數 Geotextiles and Geomembranes 41, pp.36-49
摘要 The responses of sand columns internally reinforced with horizontal geotextile layers are studied using a numerical method. The sand in the column is modeled using a non-associated plasticity flow rule. The numerical results are validated through laboratory triaxial compression tests carried out on sand columns 70 mm in diameter and reinforced with 4, 6 and 8 layers of geotextile. Numerical and experimental results are compared for deviatoric stresses and volumetric strains. The numerical analysis also provides an insight into the reinforcement mechanism. The factors affecting the reinforced column response and the advantage of horizontal reinforcement are outlined. Parametric studies on the influences of reinforcement properties, reinforcing layer spacing and specimen diameter as to the response of reinforced sand columns are examined. The numerical results show reinforcement has a significant influence from the edge toward the center of the column. The boundary makes a constant inclination angle with the reinforcement. For the reinforced column with low spacing/diameter ratio, the stresses in the influenced areas developed from the two consecutive reinforcements overlapping and the effects compounded. The lower the spacing/diameter ratio the greater the column reinforcement strength improved. An advantage of horizontal reinforcement is reinforcement rupture or soil-reinforcement interfacial slippage will not cause dramatic collapse of the entire column.
關鍵字 Sand column; Geotextile; Reinforced; Numerical analysis; Horizontal reinforcement layer; Triaxial compression test
語言 en_US
ISSN 0266-1144
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Hong, Yung-Shan
審稿制度 是
國別 GBR
公開徵稿
出版型式 紙本
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