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Locomotives classified 4-6-2 under the Whyte notation of locomotive axle arrangements. The equivalent UIC classification of locomotive axle arrangements is 2C1 or 2'C1' . Contents
There are only 20 standard gauge (1,435 mm (4 ft 8 + 1 ⁄ 2 in)) engines with this wheel arrangement that were built for and ran in Europe: class 46 of the Bulgarian State Railways (BDŽ). They were ordered by BDŽ and built according to its specification by two different manufacturers: 12 engines by H. Cegielski in Poznań, Poland in 1931 ...
Helical anchors consist of an extendable steel shaft with helical bearing plates. Piles or piers refer to strong base elements that withstand or transfer vertical/horizontal loads. Anchors are piles utilised only in tension applications like restraining wall tiebacks or vertical ground anchors made to resist overturning forces.
Common sizes are from 9 ⁄ 16 to 10 ⁄ 16 inch (14 to 16 mm) square and 5 + 1 ⁄ 2 to 6 inches (140 to 150 mm) long. [ 10 ] : 582–583 A rail spike is roughly chisel-shaped and with a flat edged point; the spike is driven with the edge perpendicular to the grain, which gives greater resistance to loosening. [ 11 ]
In ground-anchored guys, the structure which attaches the guy-wire to the ground is called an anchor. [4] The anchor must be adequate to resist the maximum tensile load of the guy wires; both the dead load of the tension of the wire and the maximum possible live load due to wind. Since the guy wire exerts its force at an angle, the anchor has ...
Typically in the form of a horizontal wire or rod, or a helical anchor, a tieback is commonly used along with other retaining systems (e.g. soldier piles, sheet piles, secant and tangent walls) to provide additional stability to cantilevered retaining walls. [1]