Practice Quiz

Civil Engineering PE

Category - Temp Structures

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What is the primary difference between a trench box and trench shoring used during the installation of an underground pipeline?
  1. Trench boxes are primarily designed to protect workers from cave-in
  2. Trench boxes are used when the soil will not remain open without caving
  3. Trench shoring is used to support nearby structures
  4. None of the above
Explanation
Answer: B - The primary difference between a trench box and trench shoring used during the installation of an underground pipeline is that trench boxes are primarily designed to protect workers from cave-ins. In any given project, several methods may be used to support trenches. Shoring methods are used not only to protect workers from cave-ins, but also to support nearby structures and allow safe equipment access to a work site.
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