Manual for railroad engineers and engineering students : containing the rules and tables needed for the location, construction, and equipment of railroads as built in the United States (1883)
Vose, George L. (George Leonard), 1831-1910 · Boston : Lee and Shepard · leaf 99
ther, we get the cubic amount of earth to be moved betweenthose stations. If the natural surface was in every case horizon-tal, transversely, the areas would be simply the mean width of thetop and bottom, multiplied by the height. The surface, however,takes every variety of form, and hence an equal… … Fig- 31. cutting at each end is known. Let B C, Fig. 31, represent thewidth of. the road-bed, A E the depth of cutting, and AB andC D the side slopes. If we call B C, B ; the horizontal memberE B of the slope R, and the height A E, H ; the area is — (B + R) X H = A. If the distance from station to…
Railroad engineering
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