- Trench collapse should be avoided by battering the sides to a safe angle or by supporting them with sheeting or proprietary support systems. ...
- Excavated spoil, plant or materials should not be stored close to the sides of excavations as loose material can fall in.
What precautions must be taken during excavation on a construction site?
- Inspect trenches daily before work begins. ...
- Check weather conditions before work, be mindful of rain and storms.
- Keep heavy equipment away from trench edges.
- Be mindful of the location of utilities underground.
- Always wear proper protective equipment.
- Don’t work beneath raised loads.
Which of the following ways to avoid excavation hazards was mentioned in the construction Etool?
Provide protection by one or more of the following: Set spoils and equipment at least 2 feet back from the excavation . Use retaining devices, such as a trench box, that will extend above the top of the trench to prevent equipment and spoils from falling back into the excavation.
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 major types of excavation hazards in construction?
- Cave-ins. Trench collapses kill an average of two workers every month, making this a serious threat to worker safety. ...
- Falls and falling loads. Workers and work equipment can fall into an excavated area. ...
- Hazardous atmospheres. ...
- Mobile equipment. ...
- Hitting utility lines.
What is excavation in health and safety?
Generally speaking, an excavation is a hole in the ground as the result of removing material . A trench is an excavation in which the depth exceeds (is bigger than) the width.
What are the methods of excavation?
- Archaeological Mapping.
- Archeological mapping.
- Archaeological Sites.
- Archeological sites.
- Survey and Excavation.
- Artifacts and artifact classification.
- Stratigraphy (Archaeology)
- Marine Archaeology.
What are the important precautions for confined space?
- any hazardous fumes or material.
- access and exit locations.
- the lighting to properly conduct the task.
- and the types of safety alarms and rescue procedures in the event of a problem.
What are the types of excavation?
- Earth excavation is removal of the layer of soil immediately under the topsoil and on top of rock. ...
- Muck excavation is removal of material that contains an excessive amount of water and undesirable soil. ...
- Unclassified excavation is removal of any combination of topsoil, earth, rock, and muck.
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.
What is shoring in excavation?
Shoring Types. Shoring is the provision of a support system for trench faces used to prevent movement of soil, underground utilities, roadways, and foundations . Shoring or shielding is used when the location or depth of the cut makes sloping back to the maximum allowable slope impractical.
At what depth do you need shoring?
Trenches 5 feet (1.5 meters) deep or greater require a protective system unless the excavation is made entirely in stable rock. If less than 5 feet deep, a competent person may determine that a protective system is not required.
What is the first choice for how do you reduce or eliminate a hazard?
Eliminating the hazard completely is always the first choice. Substitution involves replacing the material or process with a less hazardous one.
What types of health hazards are associated with construction activities?
- cuts and open wounds (31%)
- sprains and strains (21%)
- chronic joint or muscle conditions (16%).
What does shoring mean in construction?
From Wikipedia, the free encyclopedia. Shoring is the process of temporarily supporting a building, vessel, structure, or trench with shores (props) when in danger of collapse or during repairs or alterations . Shoring comes from shore, a timber or metal prop.
Who has primary responsibility for your safety?
Business owners and employers are legally responsible for health and safety management. This means they need to make sure that employees, and anyone who visits their premises, are protected from anything that may cause harm, and control any risks to injury or health that could arise in the workplace.
