Atten tanks jd
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DT117/4 Sustainable Build & Design - Class Presentations

DT117/4 Sustainable Build & Design - Class Presentations

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Atten tanks jd Atten tanks jd Presentation Transcript

  • Attenuation Tanks
  • Areas To Be Covered
    • Effects
    • Construction Process
    • Joints
    • Safety
    • Handling
    • Maintenance
  • Introduction
    • Urbanisation
    • Rainfall
    • Vegetation
    • Runoff Water
  • Effects
    • Natural Drainage Altered
    • Rainfall Changes
      • 4.5cm more than in 1925
      • 2/3 Increase in Canada,
      • Russia and Europe
      • 1/3 in Northern Tropics
      • and Subtropics
      • 100% Increase at Equator
  • Effects In Ireland
    • Flash Floods
    • Cork Village Of Schull
      • 42mm in one day
    • Dublin
      • 56mm in 24hours
    • 1960-91 Average Rainfall
  • Attenuation Tanks
    • Underground Storage Systems
    • Stores Water During Heavy Weather
    • Discharges After
    • Flow Regulator
  • Construction Process
    • Prepare the Floor
    • Steel Fixed
    • Starter Bars Positioned
    • Floor Poured
  • Pour the Walls & Seal It
    • Lifted into Place
    • Waterbar Strip
    • EDM Used
    • Shuttered & Grouted
    • Position Rebars & Steel
    • Pour Screed
  • Other Information
    • Silt Traps, Trapped Gullies, Catchpits and Hydrocarbon Interceptors
    • Galvanised Steel
    • Access Shafts
    • H&S
  • Capacity
    • Calculations
    • Varying Sizes
  • Joints
    • Watertight and airtight joint system with standard corrugated coupling bands
    • Watertight joint system with bridged corrugation, flat coupling bands
    • Backfill-tight joint system with standard corrugated coupling bands
  • Delivering & Handling
    • Delivered from Trailers
    • Straps and Padding
    • Lifting Equipment
    • Proper Storage
    • Competent Workers
  • Maintenance
    • Owner is Responsible
    • Mechanical Features
    • Access
    • Duration
    • Zinc Paint
  • Advantages & Disadvantages
    • Different Uses
    • Maintenance Free
    • Constructed Offsite
    • Fire Resistance
  •