Ryan O’Loan from CDEnviro looks at the how the resources in excavated material can be maximised, with pollutants removed and disposal costs reduced.
We live increasingly urbanised lives, with a resulting pressure on space and infrastructure. Add to this our growing technological demands, requiring miles of cabling, and ‘digging up a road’ or around a building’s foundations has never been so difficult. That’s why hydro excavation – the non-mechanical/non-destructive process combing pressurised water with a high flow of moving air to simultaneously excavate and evacuate soil in a controlled manner – is so important. It is much more effective and generally safer than more traditional methods of excavation.
The hydro excavation technique, used in urban excavation, means it is possible to work safely around underground utilities, including gas, electricity, telecommunication services and water and sewer pipes. The high-pressured water moves the surrounding soil without the risk of pipe ruptures. The resulting waste soil and water slurry are then transferred by vacuum pipes to be disposed of;...
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