. Railroad structures and estimates . fuco. 5 = S 2-r X ^ e 3 V *j! S —■? ^ c J^SS ■< C 2 r. o p 542 100-FOOT TURNTABLES. o j o.■4-\-o o o o 7{-^^ .-^o o o-0 ©I o o. TURNTABLES. 543 The C. C. it O. Ry. standard turntable pit is shown in Fig. turntable is one hundred feet in lenf2;th of the plate girdertypo. The entire foundation is built of eoncrete reinforced withold rails. Two kinds of center pier foundations are given, typeiA for firm earth and type B where piles are floor of pit is finished with pa\ing brick laid on edge andgrouted in cement. Drainag
. Railroad structures and estimates . fuco. 5 = S 2-r X ^ e 3 V *j! S —■? ^ c J^SS ■< C 2 r. o p 542 100-FOOT TURNTABLES. o j o.■4-\-o o o o 7{-^^ .-^o o o-0 ©I o o. TURNTABLES. 543 The C. C. it O. Ry. standard turntable pit is shown in Fig. turntable is one hundred feet in lenf2;th of the plate girdertypo. The entire foundation is built of eoncrete reinforced withold rails. Two kinds of center pier foundations are given, typeiA for firm earth and type B where piles are floor of pit is finished with pa\ing brick laid on edge andgrouted in cement. Drainage is provided by grading the floor ofthe pit to a catch-water basin near the center, which connectsvNith the drain. Where piles are used they must be below waterlevel, or creosoted. The Virginia Ry. standard pit is sho^v^l in Fig. 260. The turn-utble is a plate girder design one hundred feet in length. Thefoundations throughout are built of concrete and are supportedon piles where the engineer so directs. The concrete is reinforced\Nith one-inch round steel rods, when the foundations extend torock the rods are omitted. The floor of the pit is finished in con-crete dished to dr
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Keywords: ., bookcentury1900, bookdecade1910, bookidrailroadstructur00orrouof
