International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 596
be had forthe asking, when masonry would prove very expensive. A crib suitable for such foundations is shown in Fig. 5G6. RAILROAD STRUCTURES. 11 SI The crib is of pyramidal form and built entirely of roundtimber, notched together as shown in Fig. 505. On sidehill ground, the surface is broken up… … Fig. 566.allowance has been made for the batter posts. This makesa cheap and substantial foundation, and it can be easilybuilt in a swift current of water. 1 747. If the surface is solid rock, all that is neces-sary in preparing a foundation is to smooth off a place foreach post to stand on. The…
Railroad engineering
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
