International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 624
will sustain the pressure of the back filling, which is RAILROAD STRUCTURES. l--*(iii carried up to the base of the stringers. To hold this pilingin place, the back of the bent is close planked with 3-inchor 4-inch plank. When the bank bent is of considerableheight, struts of 8-in. by 8-in. stuflf…
Railroad engineering
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