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Canals and stormwater


Side drains to remove water from roads

  • In this example the drain butts with a kerb on the right hand side. The left hand side is unrestrained and so potential edge damage to the drain is inhibited by means of a “tuck-in” terminating beam. This prevents undermining and provides extra load bearing along the edge.
  • Strength of concrete is determined by design flows (where the main factor is the fall of the drain) or else the load bearing needed to take traffic.
  • Dish “parabolic” profiles are preferred to “hard edge” trapezoidal profiles and are easy to excavate with machines. (If the engineer’s calculations were based on a trapezoidal cross-section then we would simply “round the corners” as in the photo)
  • Hyson Cells drains can be trafficked
  • The drain profile can be blended into the road camber to give a safe traffickable design. Hyson Cells roads and drains can even be cast as an integral unit.

 

 

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Other gallery topics

Introduction
Canals
Development
Environmental
Labour based construction
Ponds
Roads
Roads and water
Built on clay
Spillways
Walls




 
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