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

More documents

Recommendations

Info

Internal Erosion Event Tree Reservoir Rises Erosion Initiates Erosion Continuation (lack of filtering) Progression Step 1 (roof forms tosupport a pipe) Progression Step 2 (upstream zonefails to fill crack/pipe) Progression Step 3 (constriction orupstream zone fails to limit flows) Unsuccessful Intervention Catastrophic Breach
Top Elevation for ChimneyFilter Historic practice – top of estimatedphreatic surface Current practice‣ Top of maximum normal pool as aminimum‣ Often top of maximum flood pool
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 and 12: Effect of Concentrated Seepage
Page 13 and 14: A Set of SuggestedChimney Filter Di
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: Lowering of Phreatic SurfaceWithout
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)

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?