TECHNOLOGIES OF CONSTRUCTION AND SETTLEMENT CONTROL FOR TRANSITION SECTION BETWEEN SUBGRADE AND CULVERT IN BEIJING-SHANGHAI HIGH-SPEED RAILWAY

摘要

Subgrade and culvert has difference in stiffness and settlement,which usually causes the irregularity of stiffness and geometric.This paper,mainly aimed at the CRTS II ballastless track in Langfang section of Beijing-Shanghai High-Speed Railway,and raises the Control technology of transition section construction,including the requirements of filler,selection of construction equipment,rolling control and the quality index control.To control the irregularity of transition section between subgrade and culvert,and to meet the need of high speed train safety,comfort,uninterrupted service; Taking the settlement characteristics of two transition section subgrade and culvert,the rationality of the design and construction of the transition section is validated.