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plowing snow, removing vegetation from the right-of-way, and digging ditches. Track ballast gradually shifts over time, both from natural forces and as...

great breach Pepys saw was in the west wall. It was brought about by ballast-digging on the foreshore. By the time it could be attended to, the incoming...

flat wagons. This was performed by removing the existing track and ballast, digging out the floor of the tunnel by between 300 and 800 mm (12 and 31 in)...

possible to create a lightweight vehicle that could use local material as ballast. The weight was kept low enough to allow transportation in smaller cargo...

On the confines of the settlement, there is a pond originating from ballast-digging. Szécsény has a continental climate of wetter type. The average number...

Roadheader Tunnel boring machine Underground mining equipment Hydromatic tool Ballast tamper Attachments Drilling rig Horizontal directional drilling Earth auger...

total ballast used is 1,900 tonnes (1,870 long tons; 2,094 short tons), including 1,500 tonnes (1,476 long tons; 1,653 short tons) of derrick ballast. On...

of the legends surrounding the site, uncovered the bow of a boat while digging in the still frozen ground. As word of the find got out, Nicolay Nicolaysen...

initially acted as a contractor for railways, cleaning ballast on track beds. The rough edges of ballast rock not only supports the ties and holds them in...

"preloading" takes place, where the weight of the barge and additional ballast water are used to drive the legs securely into the sea bottom so they will...

ballast, grade, and lineside infrastructure such as signals and signs. Railroad tracks consist of multiple key components: a track bed, and ballast forming...

size and the insect is unable to fly. The fore legs are flattened for digging, but the hind legs are shaped somewhat like the legs of a true cricket;...

December 1863, as a company report mentions an accident in that month on a ballast train en route to Pencader, beyond the tunnel. Official government inspection...

body which reduces drag through the water and heavy bones that act as ballast to counteract the buoyancy of their blubber. They have a thin layer of...

vertebrates, the bones show osteosclerosis, increasing their density to provide ballast. The platypus jaw is constructed differently from that of other mammals...

bottom, which was adopted in 1890, and the triangular structure of the ballast tanks, which was introduced in 1905. After World War II, an international...

treasure hunting, looting, stone mining for building stone and railroad ballast, and natural weathering. When the Spanish arrived at Tiwanaku there was...

adapted his house on Redcliffe Hill by adding a three-storey tower and digging a shaft under the house through the caves underneath to achieve the required...

tests were unpiloted, with sandbags or chains and even a local boy as ballast. They tested wing-warping using control ropes from the ground. The glider...

in making it "leap out of the waves like a modern submarine blowing its ballast tanks", a scene depicted on the posters of the subsequent film of the book...