The vacuum excavator is a portable, dual-purpose machine. Compared to other excavation methods, the vacuum excavator is a softer excavator that can dig up precisely controlled holes using either highly pressurised air or water, and it’s a powerful mobile vacuum system for most types of job-sites cleanup.
This equipment produces strong suction through a wide pipe which is around 30 centimetres in diameter. The build of a vacuum truck, with its wide suction hose, is built to vacuum up to 100 metres per second, making vacuum excavators the fastest option to dig up holes than any shovel and human force.
The suction nozzle usually has two handles, for the user to hold, on a collar which can be rotated to uncover suction-release openings to release the suction to make the suction nozzle drop anything it has sucked up and is too large to go up the tube. In order to cut earth when excavating, the end of the tube may be toothed. The soil that’ll be vacuumed is sometimes loosened first with a compressed-air lance, or a powerful water jet. Depending on what type of suction excavator is being used, it can be referred to as a “vacuum excavator” or “hydro excavator”. Vacuum excavators are safer to use when locating underground utilities, like gas thermal distribution systems; water; power and communications inclusive (fiber optics), without damaging them.
The benefits of using vacuum excavation on construction sites are endless. The main benefit being that vacuum excavators, by their nature, are far less disruptive and result to much safer and cleaner work sit. The cleaner, quieter method of vacuum excavation makes the entire environment free of traffic congestion, and faster productivity. The process also allows for easier patching, whether permanent or temporary. The operator usually has very cost-effective means of exposing a utility with this simple equipment, and offers practical applications of vacuum test pitting for verification during the design phase and planning phase of construction. Critical information is obtained efficiently and fast, reducing undue surprises and minimising all sorts of delays.
The vacuum excavator has clearly proven its functionality to crews and contractors, especially crews involved in underground construction. We’ll list the various possible applications of the vacuum excavator. It can be used to clear away environmental damage. During exploratory excavations, the equipment comes in handy, locating various utilities and other underground systems. It reduced time of digging up when replacing pipes and doing fittings, also when renovation and new installation of gas, water or heating pipes, cables and disposable lines. It can be used on railways (perhaps mounted on a railroad car base) to suck old track ballast off the track when re-ballasting the track. One can replace contaminated soil without harming the roots of trees. It also can be used to remove material in demolition projects and gravel from flat roofs. When street gutters and gullies are blocked, one can swiftly unblock them using the vacuum excavator. The vacuum excavator is clearly not just useful in construction sites, but also solving everyday life problems which need more than just a shovel or hose pipe.
Through aggressive educational efforts about the safety of vacuum excavation, vacuum excavation should be mandated in all African countries and municipalities for infrastructural purposes mainly to eventually develop Africa. As the preferred technology, with the use of vacuum excavation, we can build various needed infrastructure while saving money, time and lives.