What does excavation mean?
1 : the action or process of excavating . 2 : a cavity formed by cutting, digging, or scooping.
What is meant by excavation in construction?
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 are the three methods of excavation?
Types of excavation 3.1 Cut and fill excavation. 3.2 Trench excavation. 3.3 Basement excavation. 3.4 Road excavation. 3.5 Bridge excavation. 3.6 Dredging . 3.7 Over excavation.
How do you make an excavation site?
5 Basic Steps to Excavation Site Work Site Clearing. Before an excavation site can be developed, the ground needs to be cleared and leveled. Site Surveying. A surveyor will make sure that the project is in the right location. Soil Testing. Site Plan Design. Geotechnical Site Investigation.
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 steps of excavation?
The entire excavation process includes: setting out corner benchmarks. surveying ground and top levels. excavation to the approved depth. dressing the loose soil. making up to cut off level. the construction of dewatering wells and interconnecting trenches. making boundaries of the building.
What is the importance of excavation?
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.
What is the difference between earthwork and excavation?
This earth work may be either earth excavation or earth filling or Some times both will get according to the desired shape and level. Basically the volume of earthwork is computed from length, breadth, and depth of excavation or filling.
What is Type D excavation?
201.11. 02 Type D – Common – Common material is all other excavation materials of a nature not included in the foregoing description of Type A, regardless of the nature or condition of the material, or the method used to excavate or remove.
How can we prevent excavation?
Provide protection by: 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 a deep excavation?
Shallow excavations are defined as being anything less than 1.5 metres deep , which really is not very deep at all; a relatively short person could comfortably see over the top. Deep excavations , on the other hand, are defined as being any excavation which is more than 4.5 metres in depth – a considerable height indeed.
How is earthwork excavation measured?
Area of Cutting and Filling is found out for each Section with Trapezoidal Method or Nett Area Calculation Method. Then volume is determined by multiplying Average Area with Distance between Sections.
Why is site preparation important?
It ensures a safe, properly constructed, stable foundation for your structure. Site prep is required whether you’re erecting an office building, sports stadium, water park or residential home. However, some projects may require more preparation than others.
What type of activities are required to prepare the site for construction?
Steps in Site Preparation for Construction Projects Site observation and evaluation. First, you need to find out all of the peculiarities of the site. Soil Testing. Demolition . Underground utility mapping. Removing Asbestos. Site surveying and set out. Clearing the site. Site excavation and earthwork .