. Building and repairing railways ... : Forming one of the series of the volumes comprised in the Revised and enlarged edition of The science of railways, . (325) 326 BUILDING AND BEPAIEING Fig. 215b. PERSPECTIVE VIEW OP A SEMI-CIRCULAR ARCH. arch or the inner top edge of the skewback for asegmental arch. Ring Stone V, the stones dressed to dimensionwhich show on the face of the arch, they are alsocalled voussoirs. Span, the horizontal distance between thespring lines. Rise^ the vertical distance from the spring lineto the highest point of the inside of the arch. STANDARDS OF CONSTR
. Building and repairing railways ... : Forming one of the series of the volumes comprised in the Revised and enlarged edition of The science of railways, . (325) 326 BUILDING AND BEPAIEING Fig. 215b. PERSPECTIVE VIEW OP A SEMI-CIRCULAR ARCH. arch or the inner top edge of the skewback for asegmental arch. Ring Stone V, the stones dressed to dimensionwhich show on the face of the arch, they are alsocalled voussoirs. Span, the horizontal distance between thespring lines. Rise^ the vertical distance from the spring lineto the highest point of the inside of the arch. STANDARDS OF CONSTRUCTION. 327 Voussoirs V, the ring stone which shows at theend of the arch. Keystone K, the central or top voussoir or ringstone. Crown C, D, the crown of an arch is the highestpart of the ring stone. Haunchj the haunch of an arch is that portionbetween the crown and the spring line. Spandrel. The spandrel is the face wall of theculvert which is above the Ring Stone. Wi7ig Wall, the wall which connects with thespandrel and abutment to support the slopingportions of the embankment. Soffit S, T, S, the inner or concave surface ofthe arch. Intrados, the curved line formed on the soffitby the inter
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1906
