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.
What is the definition of excavation work?
Excavation is the act or process of digging, especially when something specific is being removed from the ground. … Mining for coal, gold, or diamonds all require excavation, and before buildings and houses can be built, there is often some excavation that’s done before a foundation can be poured.
What is excavation work in construction?
Excavation is the process of moving earth, rock or other materials with tools, equipment or explosives. It also includes trenching, wall shafts, tunnelling and underground. It is the preliminary activity of the construction project.
What are the 3 types of excavation?
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 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 is excavation 8th standard?
excavation, in archaeology, the exposure, recording, and recovery of buried material remains. … Excavations can be classified, from the point of view of their purpose, as planned, rescue, or accidental.
What do you mean by excavation Class 12?
CBSE, JEE, NEET, NDA
As per Wikipedia, excavation is the exposure, processing and recording of archaeological remains.
What is an example of excavation?
When a home builder digs a big hole to create the basement of a house, this is an example of when he excavates. When scientists carefully dig up dirt because they believe important artifacts are buried underneath, this is an example of when they excavate. To make a hole in (something); to hollow.
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 excavated surface?
Excavated Surface (in relation to individual Items in the Bill of Quantities) means the surface elevation to which the excavation has been carried out under a particular Item of work.
How do you work safely in an excavation?
Support the excavation as you go along. Prevent people and materials falling in – with barriers strong enough not to collapse if someone falls against them. Keep plant and materials away from the edge. Avoid underground services – use relevant service drawings, service locating devices and safe digging practice.
What are the safety precautions in excavation work?
03. Safety Precaution while Excavation Work:
- Prepare firm and broad approach road. …
- The nail should not be lying around, after the completion of layout work.
- Barricade the site to restrict the entry of animal and the unauthorised person on site.
- Ensure that workers are wearing personal protective equipment.