International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 398
nd rammed,so there may be a perfect connection between the puddleand the concrete. This work must be done with dispatch.The remainder may be deposited more gradually. Aftersufficient time has elapsed to allow the bed of concrete tobecome thoroughly hardened, the water is pumped out ofthe enclosure.… … Fig. 4m. 1555. Pile Foundations.— When the river bed iscomposed of soft, yielding alluvium extending to a consider-able depth, but underlaid by a firm soil of ample depth, apile foundation is commonly adopted. The piles should notexceed in length thirty times their butt diameter, andshould be cut…
Railroad engineering
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
