What is meant by excavation definition?
Definition of excavation 1 : the action or process of excavating. 2 : a cavity formed by cutting, digging, or scooping.
Why do we excavate in construction?
Working Procedure of Excavation The first and primary step involved in the excavation is to find out the extent of soil and Clearing of construction site is of unwanted bushes, weeds and plants. Setting out or ground tracing is the process of laying down the excavation lines and centre lines etc.
What is land excavation?
Land Excavation Cost The first step in building site preparation is land excavation. It is a mandatory step in building site preparation that costs between $200 and $2,000 per acre. The space for the footing and foundation and the trenches for utilities are excavated during this step of the process.
What do you know about excavation?
In a sense, excavation is the surgical aspect of archaeology: it is surgery of the buried landscape and is carried out with all the skilled craftsmanship that has been built up in the era since archaeological pioneers Heinrich Schliemann, often considered to be the modern discoverer of prehistoric Greece, and Flinders …
What is excavation in history class 6?
Archaeological excavations or evidences – Archaeologist study the remains of buildings made of stone and brick, paintings and sculpture. They also explore and excavate (dig under the surface of the earth) to find tools, weapons, pots, pans, ornaments and coins.
Why are excavation is important?
Most important excavations are the result of a prepared plan—that is to say, their purpose is to locate buried evidence about an archaeological site. Emergency excavations then have to be mounted to rescue whatever knowledge of the past can be obtained before these remains are obliterated forever.
What is involved in excavation?
Excavation by Purpose The process involves the removal of wide and shallow layers of topsoil, rocks, sand, and other unwanted materials. The procedure may also include grading the land.
How do you excavate a foundation?
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.