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压力下无纺织物部分堵塞的水力特性研究
李富强 ; 王钊 ; 陈轮 ; 胡艳军 ; LI Fu-qiang ; WANG Zhao ; CHEN Lun ; HU Yan-jun
2010-05-13 ; 2010-05-13
关键词压力 部分堵塞 折减系数 等效孔隙率 pressure partially clogged reduction factor equivalent porosity TU46
其他题名Research on hydraulic characteristics of partially clogged nonwoven geotextiles under pressure
中文摘要对压力作用下的部分堵塞无纺织物进行了室内试验,表明有土颗粒进入的织物压缩性和渗透性都降低,提出织物滤层的等效孔径折减系数RF,并建议用于贴坡排水时RF取1.5~2.5。织物无堵塞压力条件下,Giroud(1996年)提出的公式对织物渗透系数有满意的预测值。在压力作用下对比分析了部分堵塞织物Giroud法和等效孔隙率法的渗透系数预测值,也与实测渗透系数值进行了比较,表明提出的等效孔隙率法能较好地预测渗透系数。; 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.
语种中文 ; 中文
内容类型期刊论文
源URL[http://hdl.handle.net/123456789/32236]  
专题清华大学
推荐引用方式
GB/T 7714
李富强,王钊,陈轮,等. 压力下无纺织物部分堵塞的水力特性研究[J],2010, 2010.
APA 李富强.,王钊.,陈轮.,胡艳军.,LI Fu-qiang.,...&HU Yan-jun.(2010).压力下无纺织物部分堵塞的水力特性研究..
MLA 李富强,et al."压力下无纺织物部分堵塞的水力特性研究".(2010).
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