Research on hydraulic characteristics of partially clogged nonwoven geotextiles under pressure

被引：0

作者：

Li Fu-qiang ^{[1
]}

Wang Zhao ^{[2
]}

Chen Lun ^{[3
]}

Hu Yan-jun ^{[2
]}

机构：

[1] Guangxi Elect Power Ind Survey & Design Inst, Nanning 530023, Peoples R China

[2] Wuhan Univ, Sch Civil & Architectural Engn, Wuhan 430072, Hubei, Peoples R China

[3] Tsinghua Univ, Dept Hydraul & Hydropower Engn, Beijing 100084, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2008年 / 29卷 / 11期

关键词：

pressure; partially clogged; reduction factor; equivalent porosity;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

A laboratory test program was conducted on partially clogged nonwoven geotextiles under pressure. The results of test showed that the presence of soil particles inside the geotextile reduced its compressibility and permittivity, a reduction factor (RF) of equivalent opening size was proposed during filtration. RF of 1.5-2.5 was suggested for the drainage of bank slope. The expression presented by Giroud (1996) demonstrated a satisfactory forecast of coefficient of permeability of non-clogged geotextiles under pressure. Comparison of measured and predicted permeability values for partially clogged geotextile specimens indicated that an expression of equivalent porosity has a better prediction of soil impregnated specimens under pressure.

引用

页码：3128 / 3132

页数：5

共 5 条

[1] A contribution for predicting geotextile clogging during filtration of suspended solids
Faure, YH
Baudoin, A
Pierson, P
Plé, O
[J]. GEOTEXTILES AND GEOMEMBRANES, 2006, 24 (01) : 11 - 20
[2] Giroud J.P., 1996, GEOFILTERS 96, P565
[3] GIROUD J P., 1994, P 5 INT C GEOT GEOM, P1249
[4] PALMEIRA E M, 2003, GEOSYNTH INT, V7, P403
[5] Drainage and filtration properties of non-woven geotextiles under confinement using different experimental techniques
Palmeira, EM
Gardoni, MG
[J]. GEOTEXTILES AND GEOMEMBRANES, 2002, 20 (02) : 97 - 115

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