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This course covers the following information:

Trenching and Shoring in Construction Environments: The Hazards of Trenching

  • Why trenches are naturally unstable.
  • Why cave-ins are the most common and most deadly type of trenching accident.
  • Other types of hazards that can be encountered in trenching work.

Trenching and Shoring in Construction Environments: The Competent Person and Inspecting the Worksite

  • The role played by the "competent person" in controlling hazards and preventing accidents on a worksite.
  • Specific hazards that the competent person will look for when inspecting a trenching worksite before the project begins.
  • How the competent person can control or eliminate potential trenching hazards.

Trenching and Shoring in Construction Environments: Soil Types and Protective Systems

  • How the types of soils on a worksite can be a determining factor in selecting the type of protective system that should be used in any trench that will be dug there.
  • The four basic types of soil.
  • The four basic types of trench protective systems and how they work.

Trenching and Shoring in Construction Environments: Ongoing Inspection and Testing

  • The conditions that can affect the stability of a trench and the quality of the air inside it.
  • How these conditions can change from day to day, and even hour to hour.
  • Inspection policies and procedures that should be followed to monitor changes in a trench's conditions.

Trenching and Shoring in Construction Environments: Access, Egress, Setback and Equipment

  • The hazards associated with entering and leaving a trench, and working in and around it.
  • Regulations that help to protect you from these hazards.
  • Safe work practices you should follow on an active trenching worksite to avoid accidents.

Trenching and Shoring in Construction Environments: Working Defensively

  • The importance of always thinking "safety first" on a trenching project, and identifying hazards ahead of time.
  • Specific procedures that you should follow to work safely in a trench.
  • What to do and not to do in case of a trenching emergency.