Excavation Safety | Fire and Safety College | Fire and Safety Training | Industrial Safety
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Date: 24/05/2020

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What are the safety measures for excavation?
tool making trial pits to check the presence of utilities. etc. isolating the services. your job is to follow the instructions of the supervisor carefully while doing excavation do not forget to use insulated tools and tackles during excavation to prevent accidental.

What are the hazards in excavation?
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.

How can excavation hazards be prevented?
How Do I Avoid Hazards?
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.

At what depth must an excavation be supported?
The basis of the rule is that, if a trench is under 1.2m deep, then people can enter the trench without the sides of the excavation being supported or battered back. This rule is no longer something that should be considered. 1.2m is no longer the threshold for the need to support an excavation.

Is an excavation a confined space?
In general practice, all trench excavations over four feet in depth should be considered confined spaces until a competent person has ruled out all of the potential hazards associated with it.

What are the types of excavation?
Excavation by Material
Topsoil Excavation. As the name suggests, this type of excavation involves the removal of the exposed or the topmost area of the earth's surface. ...
Rock Excavation. ...
Muck Excavation. ...
Earth Excavation. ...
Cut and Fill Excavation. ...
Trench Excavation. ...
Basement Excavation. ...
Dredging.

What are the methods of excavation?
There are number of excavation methods which are used for deep foundation construction such as full open cut method, bracing excavation, anchored excavation, island excavation methods,zoned excavation, top down construction methods etc. These excavation techniques are discussed.

What causes excavation to collapse?
A trench collapse happens for a number of reasons. Sometimes, the fact that the soil around the trench is dry or is of a material that just does not naturally hold together well can lead to an unexpected collapse. Wet weather and the vibrations from nearby construction equipment can also cause a collapse.

What is an excavation plan?
Excavation work generally means work involving the removal of soil or rock from a site to form an open face, hole or cavity using tools, machinery or explosives. ... Specific duties apply in relation to the higher-risk excavations, such as trenches, shafts and tunnels.

What is trench excavation?
A trench is a type of excavation or depression in the ground that is generally deeper than it is wide (as opposed to a wider gully, or ditch), and narrow compared with its length (as opposed to a simple hole). ... Trenches have also often been dug for military defensive purposes.

How do you calculate excavation?
Add the length at the top of the excavation to the length at the bottom of the excavation and divide by 2 to get the average length. Do the same for the width. Multiply the average length times the average width times the average depth and divide by 27.

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