Top 10 for Chimney Filter/Drain Systems (PowerPoint Slides)

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#5 – Consider constructabilityin selection of filter / drainzone dimensionsIn many cases calculatedseepage quantities do not requirelarge filter thicknessesConstructability will most oftencontrol filter dimensions
A Set of Suggested<strong>Chimney</strong> <strong>Filter</strong> DimensionsSimultaneous ConstructionSimultaneous ConstructionDownstreamModification
Page 1 and 2: TOP 10 FOR CHIMNEYFILTER / DRAIN SY
Page 3 and 4: Effectiveness of ASTM C33Fine Aggre
Page 5 and 6: Filter Gradation DesignPoint 1 is t
Page 7 and 8: Importance of Regrading theBase Soi
Page 9 and 10: Effect of Fines ContentAfter Barber
Page 11: Effect of Concentrated Seepage
Page 15 and 16: Trenching Method3 ft min.
Page 17 and 18: Typical method specificationsfor fi
Page 19 and 20: #8 - Include full-heightchimney fil
Page 21 and 22: Lowering of Phreatic SurfaceWithout
Page 23 and 24: Top Elevation for ChimneyFilter His
Page 25 and 26: J.L. Sherard, lecture, 1984 1• P.
Page 27 and 28: Ronald Hirschfeld, InteragencyCommi
Page 29 and 30: #8 - Use two-stage filter / drain i
Page 31 and 32: Prevent Concentrated Flowsfrom Over
Page 33 and 34: Washakie Dam - TemporaryBerm and Pi
Page 35 and 36: Negate Effects of FilterContaminati
Page 37 and 38: Plastic Pipe MaterialsProduct Type
Page 39 and 40: #10 - Use two-stage filter /drain s
Page 41 and 42: Two examplesWashakie Dam, WY‣ Flo
Page 43 and 44: More informationMontana Dam Safety

Top 10 for Chimney Filter/Drain Systems (PowerPoint Slides)

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