The influence of tensile strain on the pore size and flow capability of needle-punched nonwoven geotextiles
學年 105
學期 1
出版（發表）日期 2016-12-01
作品名稱 The influence of tensile strain on the pore size and flow capability of needle-punched nonwoven geotextiles
作品名稱（其他語言）
著者 Wu, C.S.; Hong, Y.S.
單位
出版者
著錄名稱、卷期、頁數 Geosynthetics International 23(6), p.422-434
摘要 This work studies the effect of tensile strain on the pore size and the flow capability of needle-punched nonwoven geotextiles. Laboratory tests were conducted to investigate the variations of pore size, thickness, porosity and mean discharge velocity of water through geotextile samples (permittivity) while under different uniaxial and biaxial tensile strains ranging from 0 to 20%. Comparison of test and predicted results suggests the values of the shape factor β, describing path tortuosity and the dimensionless parameter ξ to account for the evaluations of permeability and filtration opening size for needle-punched nonwoven geotextiles under various tensile strains. The experimental data collected from three needle-punched nonwoven geotextiles show that strained geotextiles exhibit smaller pore size than unstrained geotextiles. The mean discharge velocity of water through strained geotextiles tends to decrease initially, with an increase in tensile strain for geotextiles in low strain regions, but this decreasing trend of mean discharge velocity then reverses for the same geotextiles submitted to higher strain.
關鍵字 Geosynthetics;Discharge velocity;Experimental test;Needle-punched nonwoven geotextiles;Permittivity;Pore size;Tensile strain;Uniaxial and biaxial
語言 en
ISSN 1072-6349
期刊性質 國外
收錄於 SCI EI
產學合作 國內
通訊作者 Hong, Y.S.(洪勇善)
審稿制度 否
國別 GBR
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/110465 )