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 is major excavation in construction?
In construction terms, excavation is the process of removing earth to form a cavity in the ground. … Larger scale excavation works will require heavy plant such as bulldozers and backactors.
What is excavation in safety?
Excavation work involves the removal of. soil or a mixture of soil and rock, and even. some of the most experienced workers. have been trapped, buried and injured in.
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 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.
What are two types of excavation techniques?
A trench is a type of excavation that is generally deeper than it is wide at the top.
What are the steps of excavation?
The excavation process includes:
- setting corner benchmarks.
- surveying ground and top levels.
- excavation to the approved depth.
- dressing the loose soil.
- marking up the cut off level.
- the construction of dewatering wells and interconnecting trenches.
- marking the boundaries of the building.
- the construction of protection drains.