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| Bridge Design near Existing High - speed Railway in Shijiazhuang - Jinan Passenger Dedicated Line |
| SUN Zong - lei |
| (TheThird Railway Survey and Design Institute Group Corporation，Tianjin 300142，China) |
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Abstract Research purposes ： High - speed railway has very high demand in settlements，since new buildings near the existing high - speed railway will produce additional stress on the surrounding soil，thus cause settlement of high speed railway due to some factors such as pit excavation，pumping，precipitation，load increase and so on. Taking the new Shijiazhuang - Jinan Passenger Dedicated Line as the background，this line parallels Beijing - Shanghai High - speed Railway in a long distance of 99. 4 kilometers， the linking - up road in Jinan West Station under - pases Beijing - Shanghai High - speed Railway，while the tie line in Wulitang crossed Qingdao - Jinan Passenger Dedicated Line witli a small angle. In order to ensure the operation safety of the existing high - speed railway，Shijiazhuang - Jinan Passenger Dedicated Line carried out bridge design from spacing selection near high - speed railway，under - passing high - speed railway bridges analysis，and automatic monitoring. Research conclusions ：( 1) The parallel line spacing with Beijing - Shanghai High - speed Railway was confirmed based on certain specific research. ( 2 ) By under - passing the Beijing - Shanghai High - speed Railway，the deformation influence of the bridge pile load attachments on the adjacent high - speed railway was reduced due to the rationale base form. (3) Shijiazhuang - Jinan Passenger Dedicated Line crossed Qingdao - Jinan Passenger Dedicated Line in a small angle through the adoption of frame piers and continuous beam pusher， reducing the interference with existing high - speed operation in the constructing and maintaining process. (4)This is the first realization of high - speed long - distance real - time automatic monitoring, which escorts the smooth implementation of the project. ( 5 )This research conclusion can provide reference for the engineering near the high speed railway.
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Received: 23 November 2015
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2016, Vol. 33 
