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Selection of a trench excavation method must take into account a range of rock and machine properties. It is suggested that the advantages of using chain trenchers in suitable rock outweigh the limitations and may have cost benefits and fewer adverse environmental effects compared with alternative methods.
A 6-inch wide trench with a digging depth of 30 inches was the goal. [4] The first production trencher rolled off the assembly line in 1949. Called the "endless conveyor ditch digging machine," It was the first mechanized, compact service-line trencher developed for laying underground water lines between the street main and the house.
Trencher may refer to: Trencher (comics), a comic book series; Trencher (machine), a digging machine; Trencher (tableware), a place setting item (originally a flat ...
A trench is a type of excavation or depression in the ground that is generally deeper than it is wide (as opposed to a swale or a bar ditch), and narrow compared with its length (as opposed to a simple hole or pit).
Bucket wheel excavators in Garzweiler surface mine, Germany.Note the 40-ton CAT wheeled dozer at lower left for size comparison. A bucket-wheel excavator (BWE) is a large heavy equipment machine used in surface mining.
The search for a woman who is believed to have fallen into a sinkhole in western Pennsylvania has become a recovery effort after two treacherous days of digging through mud and rock produced no ...
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