Which of the following is an excavation hazard?

The greatest risk in an excavation is a cave-in. … Other excavation hazards include water accumulation, oxygen deficiency, toxic fumes, falls, and mobile equipment.

What is a excavation hazard?

There are many potential hazards when working in excavations and trenches. Probably the most common hazard at any work site is the threat of cave-in. A cave-in occurs when walls of an excavation collapse. Cave-ins can be deadly. Wall failures often occur suddenly, with little or no time for the worker to react.

What are the types of excavation hazard?

More excavation-related hazards

  • falls into trenches or excavations.
  • tripping over equipment, debris and spoil.
  • excavated material or other objects falling on workers.
  • exposure to underground services or overhead electrical cables.
  • unstable adjacent structures.
  • mishandled or poorly placed materials.

What is the main hazard when working in an excavation?

Every year people are killed or seriously injured by collapses and falling materials while working in excavations. They are at risk from: Excavations collapsing and burying or injuring people working in them; material falling from the sides into any excavation; and.

What are the hazards in trench excavation?

The hazards of excavations include: striking buried services; people, objects or materials falling in; collapse of sides; collapse of adjacent structures; flooding; contaminated ground; toxic and asphyxiating atmospheres; and mechanical hazards.

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What is excavation answer?

Excavation is the act or process of digging, especially when something specific is being removed from the ground. Archaeologists use excavation to find artifacts and fossils.

What are the effects of excavation?

The hazards and risks are usually:

People and vehicles falling into the excavation. The undermining of nearby structures causing their collapse into the excavation. Damage to underground services during excavation work causing electrocution, explosion, gas escape, flooding etc. Ingress of water causing flooding.

What you should do before you begin an excavation?

What you should do before you begin an excavation?

  • Identify the soil type(s) related to the excavation or trench you are going to dig. …
  • Look for the legislative requirements that apply in your jurisdiction and the type of protective measures to be taken.
  • Locate all buried services.

What is a toolbox talk?

A ‘toolbox talk’ is a short presentation to the workforce on a single aspect of health and safety. We prepare toolbox talks to save you the time and effort of writing them yourself. They may be in PowerPoint, portable document format (pdf) or as video.

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