Earth removal is an important part of an excavation project. The scope of the excavation job is wide, ranging from footings of a building to moving massive amount soil. The success behind excavation jobs, is careful planning. Which would mean,
-To know the purpose of excavation-whether for civil building or military use.
-To know the area to be excavated- on which the number of professionals to be engaged, depends.
-To know the bulk of excavation- which would determine the equipments required for excavation.
Excavation can be categorized more broadly as :
Bulk excavation, and
The Construction Supervisor’s duty to the understand basic heavy equipment characteristics and their need and uses to help plan the job. It is the Site Contractor’s job to thoroughly understand the function, cost and maintenance of the equipment. It is wise to employ an excavation and earthmover company who are equipped with the machineries and skilled labor for the job. There are several companies in Melbourne providing excavation services.
The main few list of excavating and trenching equipment are : bulldozer,front-end loader, dredger, backhoe loader, trenchers, track hoe or excavators and scrapers.
Here is a brief description of these basic heavy site equipments-
Front-end loaders and bulldozers are simple machine with great versatility. They are multifunctional. Generally self operated, the bulldozers work is to clear and grub, grade earth, rip rocks, spread borrow fill, and the general site maintenance.Alternately, the use of a front-end loader is to lift soil and load a truck.
Dredgers are used to excavate underwater sediments and disposing them at some other locations. Dredging is usually done to keep waterways navigable.
Backhoe Loaders or tractor backhoe performs many chores on an average excavation project,like digging small trenches and lifting and hauling earth. They are self-propelled, rubber-tire machines.
Trenchers are used to dig trenches, used typically for laying pipes. These come in two options of chained and wheeled. A chain trencher cuts with a digging chain that is wound around a boom. It bears resemblance with a giant chainsaw. They can cut narrow and deep trenches. A wheel trencher is comprised of a toothed metal wheel and are cheaper to operate and maintain. These trenchers can cut harder ground than chain-type trenchers.
Excavators or track hoes are heavy excavating equipments consisting of a boom, dipper stick, bucket and cab on a flexible platform. Hydraulic fluid is used to accomplish the functioning and movement of the excavators.