Raymond, William Galt, 1859-1926, Raymond, William Galt, 1859-1926. cre · New York, J. Wiley & sons, inc · leaf 341
k will be w, and allowing an arbitrary bermewidth of 6 feet between the edge of the rock cutting and thebottom of the earth cutting gives a base width of w^ = w+12 for EMBANKMENT TOES AND BORROW PITS 315 the earth portion, and this is used as w in staking out thecut. When the rock is reached, new… … Fig- 100 it is considerably at variance with the true condition. Whenside borings as well as center borings are made, a probablecross profile of rock and actual cross profile of surface may bemade, a section drawn to scale, and the positions of slope stakestaken to scale from the drawing.…
Railroad engineering
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