Which of the following events cause the most fatalities during excavation work?

The industries most frequently reporting fatalities were those involved in “excavation work,” followed by “water, sewer, pipeline, and communications and power-line construction” (Table 1).

What causes the most deaths in excavation?

Falls. Falls are the leading cause of fatalities in construction. … These usually occur from not having proper safety nets for holes, unguarded protruding rebar where impalement happens, not stabilizing portable ladders, poor scaffold construction.

What is the most common and deadly hazards when working in an excavation?

Trench collapses, or cave-ins, pose the greatest risk to workers‘ lives. When done safely, trenching operations can reduce worker exposure to other potential hazards include falls, falling loads, hazardous atmospheres, and incidents involving mobile equipment.

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 the greatest risk present at an excavation site?

The greatest risk in an excavation is a cave-in. Employees can be protected through sloping, shielding, and shoring the excavation. A competent person is responsible to inspect the excavation. Other excavation hazards include water accumulation, oxygen deficiency, toxic fumes, falls, and mobile equipment.

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What are the safety precautions in excavation work?

Excavations shall have at least one ladder per 15 m of length in case of hazardous work and per 30 m of length in case of less hazardous works. Every part of a trench, in public areas, fences, guards or barricades shall be provided to prevent any accidents. Excavation areas shall be adequately lighted for night work.

Which of the following is the deadliest excavation hazard?

Cave-ins pose the greatest risk and are much more likely than other excavationrelated accidents to result in worker fatalities. Other potential hazards include falls, falling loads, hazardous atmospheres, and incidents involving mobile equipment.

What is the primary concern for excavation?

The main hazards associated with excavation work include: Surface encumbrances. Excavation collapse. Loose rock or soil.

What is the difference between excavation and trenching?

What is the difference between an excavation and a trench? OSHA defines an excavation as any man-made cut, cavity, trench, or depression in the Earth’s surface formed by earth removal. A trench is defined as a narrow excavation (in relation to its length) made below the surface of the ground.

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