Investigation Of Launching Technique For The PC Beam Of The Overhead Light Railway In Chongqing City

In this thesis, the general situation of Chongqing light railway line is introduced ,which include its linear layout and railway beam character as well as the demand of construction precision. The overhead light railway traffic line in Chongqing city locates at the Low hillock area between the Zhongliang mountain and Zhenwu mountain, its height above sea level is between 180m-340m, the relative height difference is 160m and the line length is 14.4 km, which have 1605 pieces of the PC railway beam. The beam is I -shaped. The launching construction of the beam was undertaken by the eleven bureau of the Railway Ministry. The main innovation of launching technique follows as :(1) The research and development of the YL60-type transport beam vehicle and operating procedure of the JQ60-type launching bridge machine have made the transportation and launching construction of the beam fast and normative, at the same time improved the standardization of the operating.(2) The development of construction technique for the PC beam launching by the one-line and one-machine have guaranteed the achievement of the PC beam on schedule, moreover have filled up the blank of the launching PC beam of construction technique by launching bridge machine.(3) The research of some technological measures in the transporting and launching the beam under the special operating mode have widen the practicability and applied range of the one -line and one machine for PC beam of launching technology.(4) The linear adjustment technology of the PC beam has been developed to insure to meet the demand of design and application of the PC beam.This thesis summarized the whole techniques of launching and construction...