What does the term excavation means?
Definition of excavation 1 : the action or process of excavating. 2 : a cavity formed by cutting, digging, or scooping. Other Words from excavation Example Sentences Learn More About excavation.
What are examples of excavation?
- Bridge Excavation. …
- Borrow Excavation. …
- Channel Excavation. …
- Drainage/Structure Excavation. …
- Dredging. …
- Earth Excavation. …
- Footing Excavation. …
- Muck Excavation.
What does excavation mean in construction?
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 does excavating land mean?
(ˈɛkskəˌveɪt ) verb. to remove (soil, earth, etc) by digging; dig out. to make (a hole, cavity, or tunnel) in (solid matter) by hollowing or removing the centre or inner part. to excavate a tooth.
Does excavation mean digging?
Excavation is the act or process of digging, especially when something specific is being removed from the ground. Archaeologists use excavation to find artifacts and fossils. There are many types of excavation, but they all involve digging holes in the earth.
Why excavation is done?
Excavations can be classified, from the point of view of their purpose, as planned, rescue, or accidental. 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.
Why do we excavate in construction?
Excavations can be classified, from the point of view of their purpose, as planned, rescue, or accidental. 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.
Why do we excavation in construction?
Excavation is critical for every construction project because it creates a strong foundation for the project and provides a stable surface for the surrounding property.
What objects are in excavation?
Answer: these are the things which archaeologist find during excavation are; tools ,weapons ,pots, ornaments buried bones of humans & animals coins ,seals ,metal & so on…
What excavator means?
one that excavates Definition of excavator : one that excavates especially : a power-operated shovel.
What is the process of excavating?
Excavation is the process of moving earth, rock or other materials with tools, equipment or explosives. It includes earthwork, trenching, wall shafts, tunneling and underground. Excavation has a number of important applications including exploration, environmental restoration, mining and construction.
How Deep is an excavation?
What is Deep Excavation? Deep excavation is excavation that goes down more than 4.5m (or 15ft) deep into rock or soil. Excavations can range from shallow to deep and can be general or focussed. The depth of an excavation is dependent on the requirements of the excavation that is being carried out.
How do you excavate for a house?
0:005:33Building A House – #05 Excavation – YouTubeYouTube
Why do we excavate?
Excavation is used in construction to create building foundations, reservoirs and roads. Some of the different processes used in excavation include trenching, digging, dredging and site development. Each of these processes requires unique techniques, tools and machinery to get the job done right.
Why do archaeologists excavate?
For these reasons, archaeologists generally excavate only when there is a threat of destruction or when they may reveal vital information about past cultures. And they usually excavate only a small part of any site.
How do excavators work?
The operator of the excavator uses pedals and levers to steer the equipment, and to move backwards and forwards. Tracks, similar to tank tracks, are activated by the diesel powered engine, and hydraulic motors control the arm of the excavator.
Is an excavator a tractor?
There are essentially three different types of earth-moving tractors, and these include the following. Excavators: used mostly for demolishing and digging, excavators can shovel dirt or lift heavy pieces of equipment.
How is a land excavated?
Land excavation involves heavy machinery like bulldozers, excavators, backhoes, and forward loaders. Though excavation is typically used in construction to grade and lay foundations, it can be multi-purposed as it can involve tunneling, creating wall shafts, and earthworks.
What are some dangers of excavation?
Top 5 excavation safety hazards
- 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.
Feb 12, 2018
What problems are created by excavation?
People and vehicles falling into the excavation. The undermining of nearby structures causing their collapse into the excavation. Damage to underground services during excavation work causing electrocution, explosion, gas escape, flooding etc. Ingress of water causing flooding.
Why is excavation needed?
Excavations can be classified, from the point of view of their purpose, as planned, rescue, or accidental. 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.
How long does it take to excavate?
Keep in mind that several factors will influence how long it will take to excavate your job site, and times can vary considerably. However, excavation for a foundation can range from 3 to 4 days on up to 3 weeks. Generally, the worst-case scenario will involve a 10-foot over dig.
How do you excavate?
Excavate the interior, removing the soil to the depth of the perimeter trench. To keep the entire excavation at a consistent depth, check it periodically with a 4-foot level or a slope gauge. If you remove too much soil in some places, fill the dips with sand or gravel — not loose soil.
How is excavation done?
Work procedure for excavation at construction site involves understanding of centre line and excavation drawings, setting out of plan on ground, excavation of soil and removal of excess soil. Quality checks such as recording ground level and marking of reference points should be done.
What equipment is used for excavation?
Excavators Excavators are popular earthmoving vehicles that feature a bucket, arm, rotating cab and movable tracks. These components provide superior digging power and mobility, allowing this heavy equipment to perform a variety of functions, from digging trenches and breaking holes to lifting away waste and excavating mines.
What is an excavator look like?
What Does An Excavator Look Like? In many ways, an excavator looks quite a bit like a backhoe. This machine also has a chassis, boom, digging bucket and dipper. An excavator may run on wheels or on tracks.
Why is a backhoe called a backhoe?
The term “backhoe” can be confusing because the digging bucket is actually on the front of the machine. But the backhoe's name actually refers to the way that the machine digs by pulling earth toward itself, or backward, rather than pushing it forward like a traditional shovel.
Why is an excavator called a hoe?
That is, a backhoe digs by drawing earth backwards, rather than lifting it with a forward motion like a person shovelling, a steam shovel, or a bulldozer. The buckets on some backhoes may be reconfigured facing forward, making them "hoes".
How do you do excavation?
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.
What are the three main types of excavation?
Bridge excavation The work may be subdivided into wet, dry and rock excavation.