Improvement and Integrative Optimum of Speed-raising Turnout Technology

Research purposes: Based on the technical development of the turnout for high-speed railway and the increasing demand of railway construction in China for higher technical performance of turnout in recent years,the technical development direction of speed-raising turnout widely used and played an important role in our railway systems,is analyzed for the purpose of improving the overall technical level of the turnout used for the main railway lines in China as soon as possible.Research results:Through analyzing the turnout technologies used for the high-speed railways at home and abroad,and combining with the applicable situation of speed-raising turnout in the past ten years and the successful experience of applying the simple turnout with movable-point frog of 60 kg/m rail steel in 200 km/h railways,this paper theoretically analyzes the current main speed-raising turnouts used in China and makes the proposals of making the optimum design of the speed-raising turnouts from the line type to the structures of the main components of the turnout to completely eliminate the potential hazards in safety of the current speed-raising turnouts,improve the overall technical level of the speed-raising turnout,better meet the needs of railway construction,development and operation.