Analysis On The Settlement And Treatment Measures Of Passenger Transport Railway Transition Section

ABSTRACT:On October 12,2003 at qin-shen passenger into the formal operation, which marks the high-speed railway entered orbit, The requirement of subgrade with higher standards of transition section of the road, faced with daunting challenges. Because of the rigidity diference between the roadbed and the abutment, which will arouse abruptly change of the rail's rigidity. As a result, Roadbed and bridge transition section facing more severe challenges.This paper discusses the transitional period of the uneven settlement of reason, and compares the different treatment. Then emphatically studied various parameters of transition section of the settlement, mainly is established using ANSYS finite element model of transition section 3d numerical simulation analysis, In addition to actual settlement material are analyzed, and then some conclusion:1.For non-rigid foundation transition section of the main factors affecting its settlement is foundation stiffness and the packing density after the abutment.2.When the foundation stiffness can reach the rigidity of the foundation, will influence transition section of subsidence is the main factor of packing density and compaction degree.3.Close to the position of the abutment DaoTiXing sedimentation rate are trapezoid fast, but two forms of final settlement under almost the same value.4.Close to the position of the abutment DaoTiXing sedimentation rate are trapezoid fast, but two forms of final settlement under almost the same value.5.Based on the numerical analysis and theoretical analysis are given on the basis of transition section, strengthening measures.