While it is not as cost effective as a dragline
per bcm of material moved, the technique presents other opportunities, such as high mobility or pre-stripping in advance of dragline
Our Daily Marketplace is a complement to our regular weekly auctions and allows us to reach out to our global network and find the right buyers to meet a seller's price target, which can be particularly useful when selling high-priced and unique items like the dragline
The spider webs found in gardens and garages are made from multiple silk types, but viscid silk and dragline
silk are most critical to the integrity of the web.
The giant earth-grabbing bucket from the 4,000-tonne Ace of Spades dragline
- which was sold, dismantled and shipped out to the USA last year - is the first such piece of equipment to be used in creating the sculpture trail.
helluo varied dramatically in the quantity of dragline
and attachment disks deposited on the substratum.
When weights are dropped on dragline
silk, it can absorb up to 10 times more energy than Kevlar
Figure 1 shows the stress-strain curves and the polarized Raman spectra of the dragline
and the capture spiral silks produced by the spider Nephila clavipes.
Researchers prize dragline
silk for its strength and its toughness, two distinct properties, explains Todd A.
moved its last load of dirt from Poker Flats in November 2002, and mining began in the Two Bull Ridge area.
In 2000 in Australia, the firm commissioned the largest operating dragline
in the world that can move earth the equivalent of two football fields during excavation.
Larry Russell, one of the district's six drainage commissioners, said the only other machine that possibly could be used for this project was a dragline
but not with the same quality results.
Beginning operations in 1984, coal deposits are mined via dragline
and truck/shovel from glacial remnants of a once extensive flat-lying multi-seam field.