Test And Research On Construction Technique For Road-Bridge Transitional Zone On High-Speed Railway

Construction of road-bridge transition zone is an important link to construction of high-speed railway. It is essential to construction of road-bridge transition zone to adapt suitable packing, construction machinery, construction technique and test method under different geological condition. And to find the suitable design and construction technique for road-bridge transition zone of high-speed railway under the test and research on different method on road-bridge transition zone building is one of the precondition for building of high-speed railway .The suitable packing, construction machinery and construction technique for construction of transition zone on high-speed railway are presented on the test and research on construction technique for filling road-bridge transition zone on Passenger Dedicated Line by coarse gradation materials made on Handan-Jinan Railway Line as well as test and research on filling road-bridge transition zone by reinforce soil made on Qinhuangdao-Shenyang Passenger Dedicated Railway Line .It shows that it is possible to flu road-bridge transition zone on high-speed railway by coarse gradation materials and reinforce soil and it is a perfect method for road-bridge transition zone building due to the simple construction technique, cheap expenditure, little influence on environment and obvious effect on transmutation controlling . Large numbers of test data which is systemic, credible, exact and detailed was acquired during the processing of these two scientific research item and settlement value and theoretical analysis on trial section was done together with the test and research on the site. The connection between the rule of settlement in the transition zone and the parameter such as groundsill, transmogrification modulus, material and density was studied based on comparing true settlement value in trial section with settlement value of theoretical calculation by frame analysis software. And it will help the farther research on design and construction about road-bridge transition zone.