Earthwork is a vital component in construction. The specialists that work with the earth so that pieces of land are rendered suitable for building are call excavation contractors. They move soil (or dirt), rocks, and other materials around on the land so that the elevations are correct for building. This is important to avoid flooding the building when it rains. They also ensure that the earth foundation is solid to support the weight of a building. The nature of earthwork is diverse and requires a lot of moving earth materials around the site. Additional materials may also have to be trucked in to provide a suitable surface. It is always wise to consult an excavation contractor even if you only need to dig a basement or add a small addition to your home. Our website provides info about Fairview Heights Rental Equipment.
Since the nature of this work is dangerous and requires experience and expertise, the contractors must abide by the procedures and standards implicated by the United States Department of Labor called OHSA (Occupational Health & Safety Administration). The OHSA has extended safety guidelines for contracting and excavation in order to protect the workers from accidents.
The following are the services provided by an excavation contractor.
1. Clearing and Grubbing
This task is carried out before the actual excavation work begins. It involves stripping the land of undergrowth, trees, stumps, and shrubs.
2. Rough Grading
When the excavation contractor finishes the grubbing and clearing task, there will be some places that need filling while other sections of the land will be too high and need cutting the soil down. The process of “cutting and filling” the land prior to construction is called rough grading.The excavation contractor executes the cut and fill process according to a set of civil plans that indicated the existing land elevations and overlays the purposed elevations (or what it should be to make the land suitable for building). Excavation begins by cutting down the areas that are too high and moving that material to the areas where the soil is too low. This material is tracked down with a bulldozer to ensure compaction or firmness.
3. Trench Excavation
Trench excavation is used primarily to dig ditches for the placement of underground utilities. The utility (water line, storm drain pipe or sewer drain) is placed into the trench,covered then compacted so that the area is all even and smooth without dips and bumps. Open trenches can be used to divert water away from buildings and toward a designated area to avoid flooding or erosion. An excavation contractor prepares sites for both residential and commercial purposes. The contractor prepares and compacts building pads for foundations, basements, parking lots, driveways and about every surface that is developed. This is accomplished with the use of heavy equipment like bulldozers, compactors and rollers. Other pieces of equipment are used to dig such as excavators and backhoes. The digging equipment removes soil from the areas that are too high while the bulldozers pusher the soil that is extracted into the areas that are low. The elevations are marked by surveyors and the excavation contractors are guided to the correct heights by using lasers. The same process is used regardless if the project is commercial, residential, infrastructure or utilities. The execution of this type of work obviously requires employees with various equipment and technical capabilities.
These equipment operators learn their trade primarily through rigorous onsite training. Some may also have a formal education, study print material, videos and seminars. With years of experience, they also not only possess excavation techniques but also knowledge about best kind of equipment available.
When hiring a contractor, one must always consider his/her expertise and time period served in the industry. Be sure to consider his/her skills, technicalities, and proficiency on different aspects of site work. An expert will not only have command over his/her job description but will also be able to guide you on other aspects of structural engineering.