When an excavator digs down, unless it is installed with lasers the trench floor will be uneven. With trenchers an even floor is formed; if sanding of the trench is required less material is necessary. Trenching offers not only a smooth floor, but smooth sides.
When an excavator lifts up its bucket to dump, the trench stops, but with chain trenchers it just keeps cutting.
The soil from excavators is removed in clumps - even more in black soil. The trenchers grind soil into a fine state, which makes good backfill. The soil can be placed on each side of the ditch, whichever you need.
Trenching, is basically like digging a long thin hole, maybe 10 inches wide, and 2 feet deep, for 100 yards. That would be a giant job, to finish with a shovel.
A trenching machine, is a big chain saw, a trenching machine digs up the ground to a certain depth, and certain width. Most prominent, trenching would be required for creating of footings, irrigation lines, cable lines, pipes, underground utilities, water lines, gas lines, pool lines, and more.
These machines are purpose built in the USA and designed for acute soil and rock conditions. The cutting chain uses tungsten carbide tipped digging teeth to "grind" the ground as it moves along.
The action of cutting excavates the soil, or booty, from the ditch at the same time, bringing it up to the head of the digging face where it is dropped on to a conveyor.
The conveyer can be moved to the left or right and discharges the 'spoils ' into rows at a predetermined distance from the trench. As the rows are set away from the ditch edge, access by machinery and staff is less restricted and allows for a better; work environment.
On jobsites where you can mechanically backfill with a blade or bucket without damaging turf, sizeable, open-cut trenches are simple to cover fast. But you still need to dedicate work and machine resources to backfilling.
Are there alternatives that are more labor-efficient and less destructive to landscapes? Fortunately , yes.
Many irrigation contractors have vibratory plows, mini-trenchers and mini-loaders in their equipment arsenal. These machines can be less damaging, more portable or, with the utilising of different attachments, more versatile than standard trenchers.
They also decrease backbreaking work which, arguably, could be one of the most important advantages in the present day's labor-shy working environment.
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