International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 316
Walls. —Let ahd c. Fig. 405, be a retaining wall with battered face andvertical back. Thetop b e of the back-ing is level with thetop of the wall.Let d e representthe natural slope ofthe material com -posing the filling,viz , \\ horizontal fig. 405. to 1 vertical, which is the average of materials… … 906 RAILROAD CONSTRUCTION. ode between the vertical line o </draw;i from the inner bot-tom edge of the wall and the natural slope d c be divided bythe line d f\n\.o two equal angles o c//and f d i\ thuajig/co ^// is called the angle and the line c//the slope of maxi-vnini pressure. The…
Railroad engineering
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