International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 418
les to their safe limit. 1583. Trestle Loads.—In computing loads for ///rtrestles it is not too great an allowance to assume that theentire weight of the driving wheel base falls upon eachbent, or row of piles, in succession. vSuppose, for example,a bent of four piles is driven in building a… … 1008 RAILROAD CONSTRUCTION. First pile, ^ inch; second pile, g inch; third pile, -g inch;fourth pile, f inch. Applying formula 109, L = . - . ., we have o -|- i or , ,r 1. 1 r 2X1.5X30 90 tOUS Safe load for 1 st pile, L = ^-—, = ——^— = 00.0 tons. ^ .0 + 1 1.0 cf 1 Af oi -1 r •iXl.5x30 00 tonsSafe…
Railroad engineering
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