Filter, Graded

0.01 sec.

Filter, Graded

a device in headworks that consists of several layers of unconsolidated material with increasingly coarse particles in each layer. The material may be sand, gravel, rubble, or pebbles; the coarseness of the particles increases toward the seepage line. Graded filters are used mainly in earth dams and other hydraulic-engineering installations erected on soft foundations. Such filters prevent seepage from washing fine soil particles from the body and base of the installation.

Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.

?Page tools

Printer friendly
Cite / link

Feedback

Mentioned in	?		Encyclopedia browser	?		Full browser	?
No references found			filter factor Filter Feeder filter flask filter impedance compensator filter leaf filter loss Filter Medium filter paper filter pass band filter photometer filter photometry filter press filter promotion filter pump filter reactor filter sand filter screen filter section filter slot filter spectrophotometer filter thickener filter tip filter transmission band Filter Well Filter, Acoustic Filter, Graded Filter, Notch Filter, Water-Supply filter-cake washing filter-press cell filter-pressing filter-type respirator filterability Filterable Bacteria filterable virus filtered radar data filtered stock filtered-particle testing filtering Filth filtrate Filtration filtration sterilization Fimbria fimbriate Fimbristylis FIMS Fin fin assembly fin efficiency fin fold			Filter Smoke Number filter spectrophotometer Filter Stream Digital-to-Analog Converter Filter Test Facilities Filter theory filter thickener Filter thread filter through filter through filter through filter tip filter tip filter tips filter tips filter transmission band Filter Umbrella Filter Water Separator Filter Well Filter Wheel Mechanism Filter, Acoustic Filter, Air Coolpad Filter, Air Replaceable Filter, Air Roll Filter, Air, Bag Filter, Air, Carbon/Charcoal Filter, Air, Cleanable Filter, Air, HEPA Filter, Air, Mat Filter, Graded Filter, Notch Filter, Oil, and Grease Filter, Regulator, Lubricator Filter, Water-Supply Filter-Aided Sample Preparation Filter-Bank Multi-Carrier Modulation Filter-Bank-Based Multi-Carrier Filter-Based Forwarding filter-cake washing Filter-Paper Unit filter-press cell filter-pressing filter-tipped filter-tipped filter-tipped cigarette filter-type respirator Filter/Combiner Unit Filter/Pressure Transducer Filter/Transducer Module filterability filterability filterability filterable filterable filterable Filterable Bacteria filterable virus filterable virus filterable virus, filtrable virus filterable virus, filtrable virus

Encyclopedia

Free Tools:	For surfers: Free toolbar & extensions \| Word of the Day \| Help For webmasters: Free content \| Linking \| Lookup box \| Double-click lookup

Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.