Laboratory Tests of the Influence of Clogging on the Hydraulic Properties of Nonwoven Geotextiles
Since decades the use of nonwoven geotextile filters is a common application in geo-environmental engineering.The main functions of the filter are to prevent the movement of the base soil fine particles allowing the liquid to flow as freely as possible.Geotextiles are easy to transport and install,their main advantage is to help to minimize clogging effect of drainage and the proper selection of geotextile filter layers is essential to ensure durability of drainage systems.However,the design of a geosynthetics filter is a very complex process because of the large number of parameters involved.In this paper the current geotextile filter design criteria: retention,permeability and anti-clogging were showed.What is more,laboratory tests of water permeability normal to the plane of worn nonwoven geotextile samples taken from Bia(l)obrzegi earthfill dam after more than 20 years of exploitation were presented.Therefore the factors affecting the geotextile filters clogging were illustrated.The results show a marked influence of clogging on hydraulic properties of tested nonwoven geotextiles and allowed to verify the effectiveness of applied geofilters in earthfill dam.
Nonwoven geotextile Water permeability Clogging Earthfill dam
Anna Miszkowska Eugeniusz Koda Anna Sieczka Piotr Osi(n)ski
Faculty of Civil and Environmental Engineering,Warsaw University of Life Sciences,Nowoursynowska 159,02-776 Warsaw,Poland
国际会议
The 8th International Congress on Environmental Geotechnics(第八届国际环境土工大会)
杭州
英文
686-691
2018-10-28（万方平台首次上网日期，不代表论文的发表时间）