Technical Manual: Conduits through Embankment Dams (FEMA 484)

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Conduits through Embankment DamsFigure 199.—Grout is delivered to the site and is pumped into the conduitbeing abandoned.Figure 200.—Grout being delivered to the pumping truck.362
ReferencesThe following references have been specifically cited in this document.American Association of State Highway and Transportation Officials, StandardSpecifications for Highway Bridges, 2002. American Concrete Institute, Building Code Requirements for Reinforced Concrete, ACICommittee 318, 1977.American Concrete Institute, Nondestructive Test Methods for Evaluation of Concrete inStructures, ACI 228.2R-98, 1998a.American Concrete Institute, Guide to Underwater Repair of Concrete, ACI 546.2R-98,1998b.American Concrete Institute, Code Requirements for Environmental Engineering ConcreteStructures, ACI Committee 350, 2001.American Concrete Institute, Building Code Requirements for Structural Concrete andCommentary, ACI Committee 318, 2002.American Iron and Steel Institute, Handbook of Steel Drainage and Highway ConstructionProducts, 1994.American Society of Civil Engineers, Guidelines for Evaluating Aging Penstocks, 1995.American Society of Civil Engineers, Guidelines for Instrumentation and Measurements forMonitoring Dam Performance, 2000.American Water Works Association, Concrete Pressure Pipe (M9), 1995.American Water Works Association, Steel Water Pipe—6 in. (150 mm) and Larger,C200, 1997.American Water Works Association, Design of Prestressed Concrete Cylinder Pipe, C304,1999a.American Water Works Association, Prestressed Concrete Pressure Pipe, Steel-Cylinder Type,for Water and Other Liquids, C301, 1999b.363
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Technical Manual:Conduits throughEm
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PrefaceTens of thousands of conduit
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Prefacecondition. The hazard classi
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PrefaceLakeLine MagazineMaryland Da
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Conduits through Embankment Dams11.
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Contents23 Precast concrete pipe be
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Contents81 On first filling, a high
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Contents117 This conduit was severe
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Contents158 An example of a histori
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ContentsFigures in the AppendicesNo
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ContentsB-33 Aerial view of Como Da
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ContentsB-81 Cross section of Wiste
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ContentsMASW, multichannel analysis
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Symbolsc, cohesionE', modulus of so
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ContentsD 3350D 4221D 4253D 4254D 4
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IntroductionConduits convey water f
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IntroductionFigure 3.—A 15-inch d
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Introductionunstable. When seepage
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IntroductionAn embankment dam with
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A vortex may form at the location w
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IntroductionWater from the reservoi
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IntroductionFlowing water from the
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IntroductionThe process of dislodgi
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Introductionbe observable at the su
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IntroductionFigure 11.—Example of
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Introductionwhere conduits were ass
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Introduction• Conduits within lev
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IntroductionFigure 12.—An example
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Introductionmore recent practiced h
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IntroductionThe “best practices
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Chapter 1GeneralConduits have been
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Chapter 1—GeneralFigure 14.—Ant
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Chapter 1—GeneralFigure 17.—Fai
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Chapter 1—Generalmeans the condui
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Chapter 1—Generalfacilitate futur
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Chapter 2Conduit MaterialsVarious m
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Chapter 2—Conduit MaterialsFigure
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Chapter 2—Conduit Materials• Co
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Chapter 2—Conduit MaterialsSteel
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Chapter 2—Conduit Materials2.3.2
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Chapter 3Hydraulic Design of Condui
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Chapter 3—Hydraulic Design of Con
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Chapter 4Structural Design of Condu
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Chapter 4—Structural Design of Co
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Chapter 5Foundation and Embankment
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Chapter 5—Foundation and Embankme
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Chapter 6Filter ZonesZones of desig
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Chapter 6—Filter Zonesseepage or
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Chapter 6—Filter ZonesFigure 87.
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Chapter 6—Filter Zones3. Upstream
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Chapter 6—Filter Zonesbedrock sur
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Chapter 6—Filter Zoneszones, and
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Chapter 6—Filter Zonesfiltering t
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Chapter 6—Filter Zonessoil. This
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Chapter 6—Filter Zones6.8 Specifi
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Chapter 6—Filter ZonesVarious deg
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Chapter 6—Filter Zones• For pre
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Chapter 7Potential Failure Modes As
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Chapter 7—Potential Failure Modes
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Chapter 8Potential Defects Associat
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Chapter 8—Potential Defects Assoc
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Chapter 9Inspection and Assessment
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Chapter 9—Inspection and Assessme
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Chapter 10Evaluation by Geophysical
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Chapter 10—Evaluation by Geophysi
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Chapter 11Appropriate Emergency Act
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Chapter 11—Appropriate Emergency
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Table 11.2.—Potential problems an
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Chapter 12Renovation of ConduitsThe
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Chapter 12—Renovation of Conduits
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Page 349 and 350: Chapter 12—Renovation of Conduits
Page 369 and 370: Chapter 13Replacement of ConduitsGe
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Page 383 and 384: Chapter 14Repair and Abandonment of
Page 385 and 386: Chapter 14—Repair and Abandonment
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Page 403 and 404: ReferencesBureau of Reclamation, De
Page 405 and 406: ReferencesCooper, Chuck, E. Wesley
Page 407 and 408: ReferencesJacobsen, S., “Buckling
Page 409 and 410: ReferencesNatural Resources Conserv
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Page 413 and 414: ReferencesWooten, R. Lee, Peter S.
Page 415 and 416: Additional ReadingThe following ref
Page 417 and 418: Additional ReadingCarter, Brent H.,
Page 419 and 420: Additional ReadingJohnson, Brian, J
Page 421 and 422: Additional ReadingNatural Resources
Page 423 and 424: Additional ReadingU.S. Army Corps o
Page 425 and 426: Additional ReadingVan Aller, Hal, R
Page 427 and 428: GlossaryThe terms defined in this g
Page 429 and 430: Glossary• Backward erosion piping
Page 431 and 432: GlossaryCathodic protection system
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Page 435 and 436: Glossarymalfunction or abnormality
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Page 441 and 442: GlossaryGate chamber: An outlet wor
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Page 447 and 448: GlossaryOpen cut: An excavation thr
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GlossaryResistivity: A measure of t
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GlossarySettlement (FEMA, 2004): Th
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GlossaryStandard Proctor compaction
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GlossaryThermoset (ASTM F 412, 2001
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GlossaryReferencesAmerican Concrete
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IndexAAbandonment of conduits, 225,
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IndexCompaction of backfill, 6, 10,
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IndexDDamembankment, 113-130, 333-3
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IndexExisting conduit, 23, 31, 45-5
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IndexHydraulic fracture, 4-11, 17,
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IndexMechanical caliper, 246Metal c
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IndexPressure flow, see Conduit, pr
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IndexSliplining, 39, 45-47, 51, 164
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IndexUUltrasonic pulse-echo, 245, 2
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Appendix AHistory of Antiseep Colla
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Appendix A—History of Antiseep Co
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Appendix BCase HistoriesIndexDam Lo
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Appendix B—Case HistoriesDam Loca
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Appendix B—Case HistoriesProject
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Appendix B—Case HistoriesFigure B
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Appendix B—Case Historiesproject,
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Appendix B—Case Historieswatersto
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Appendix B—Case HistoriesLessons
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Appendix B—Case HistoriesThe cond
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Appendix B—Case Historiesroadway.
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Appendix B—Case Historiesentire c
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Appendix B—Case Historieshauled i
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Appendix B—Case Historiescoal tar
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Appendix B—Case Historieshistory
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Appendix B—Case Historiesarea, a
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Appendix B—Case Historiespipe. Du
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Appendix B—Case Historiesinvert o
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Appendix B—Case Historiesdownstre
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Appendix B—Case HistoriesThe caus
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Appendix B—Case Historiesof sever
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Appendix B—Case HistoriesThe down
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Appendix B—Case Historieshose and
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Appendix B—Case HistoriesADownstr
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