Field-book for railroad engineers. Containing formulas for laying out curves, determining frog angles, levelling, calculating earth-work, etc., etc., together with tables of radii, ordinates deflections, long chords, magnetic variation, logarithms, logarithmic and natural sines, tangents, etc., etc (1877)
Henck, John Benjamin, 1816-1903 · New York : D. Appleton · leaf 130
CURVES. IIJ to each other, but converge towards the centre of the curve. A sectionbetween two stations 100 feet apart on the centre line will, therefore,measure less than 100 feet on the side nearest to the centre of thecurve, and more than 100 feet on the side farthest from that centre.Now in… … Fig. 55. an excavation, EFG being the centre line, AL and Cil/the extremeside lines, and 0 the centre of the curve. Then the calculation of tlieQrst section would include all between the lines .41 Ci and B^Di\^-hile the true section lies between A C and B D. In like manner, thecalculation of the…
Railroad engineering · Ferrovias
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
