. Building and repairing railways ... : Forming one of the series of the volumes comprised in the Revised and enlarged edition of The science of railways, . ap is estimated for bythe cubic yard. After the completion of the sections, a carefulfinal estimate is made, but final payment is gen-erally withheld until track is laid over the work. Cuts and fills having been made, culverts,trestle bridges and false work erected and depotgrounds graded a sufficient distance from thejunction with the present railroad, the track lay-ing force is in a position to commence work. Thedivision engineers at the
. Building and repairing railways ... : Forming one of the series of the volumes comprised in the Revised and enlarged edition of The science of railways, . ap is estimated for bythe cubic yard. After the completion of the sections, a carefulfinal estimate is made, but final payment is gen-erally withheld until track is laid over the work. Cuts and fills having been made, culverts,trestle bridges and false work erected and depotgrounds graded a sufficient distance from thejunction with the present railroad, the track lay-ing force is in a position to commence work. Thedivision engineers at the front estimate the date GONSTBUCTION. 135 the track layers will reach their respective divis-ions, and look over their divisions carefully withregard to the amount of material to move, andthe forces employed in grading and contractors are urged to greater activityand every effort made to secure the completionof the grading and bridging before the track lay-ing forces arrive. The chief engineer comes outover the line to give a personal inspection andhurry forward the work on heavy sections. The manner in which the track is laid depends. Fig. 75. TRACK LAYING OR IRON CAR. on the length of the new road and the characterof the country. One method is as follows: Aconstruction train brings the material to the front,and the ties are unloaded and hauled forwardwith teams, and placed on the grade; the railsare brought to the front on the cars which wereused to bring them from the material yard. Thenecessary quantities of fishplates, bolts and spikesare placed on each car to lay the rails containedon the car. The rails are drawn over the end ofthe car and placed on a track-laying or iron car 136 BUILDING AND REPAIRING RAILWAYS, (see Fig. 75). This car is pushed forward as fastas the rails are laid, the joints are half bolted andthe rails quarter spiked; when the last pair ofrails is drawn off the iron car, the engine pushesforward the train of construction material, and t
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1906
