人民黄河2018，Vol.40Issue(2)：109-112,130,5.DOI:10.3969/j.issn.1000-1379.2018.02.023
水力梯度对土-无纺织物系统反滤性的影响
Test Research on Filtration Properties Between Nonwoven Geotextile and Soil System Under Different Hydraulic Gradient
摘要
Abstract
Gradient ratio testswere carried out to study the filtration characteristic influence of geotextiles. The filtration systems were com?posed of the geotextiles and soils in Ningxia.Gradient ratio test under three kinds of 4,7 and11 average hydraulic gradients with gradually and directly increases was carried out to measure the permeability coefficient of soil and fabric systems,phase soil infiltration capacity and gradi?ent ratio. The results show that a)when i gradually increase,No.2 have bigger permeability coefficient than i directly increased,No.1,No.3 and No.5's permeability coefficient decreased with increasing i;b)when i gradually increases,No.4 and No.2 are clogging. When i directly increase,No.2 is clogging;c)when i directly increase,No.2 and No.4 have smaller soil content per unit volume of geotextiles than i gradu?ally increases. The others showed the tendency of increasing.关键词
土工织物/反滤性能/梯度比试验/淤堵/渗透系数/水力梯度Key words
geotextile/filtration characteristic/gradient ratio experiment/clogging/permeability coefficient/hydraulic gradient分类
农业科技引用本文复制引用
周波,王红雨,王小东..水力梯度对土-无纺织物系统反滤性的影响[J].人民黄河,2018,40(2):109-112,130,5.基金项目
国家自然科学基金资助项目(41462010) （41462010）
宁夏高等学校科学研究项目(NGY2016244) （NGY2016244）
宁夏大学研究生创新项目(GIP201635). （GIP201635）
