Study on Disease Treatment of Directly Buried Fastener Type Steel-Spring Floating-Slab Track Bed
Early laid steel-spring floating-slab track bed adopts cast-in-place method form,and the fasteners are buried directly in the track bed.With the increase of service time of rail transit lines,structural diseases of cast-in-place floating-slab track bed caused by various factors have gradually emerged.How to repair and remodel the floating-slab track bed structure in a short period of time without interrupting the operation conditions and ensure the operation safety is a difficult problem that needs to be solved urgently.This article comprehensively elaborates on the transformation technology of the steel-spring floating-slab track bed from the current structural condition,disease mechanism,transformation plan,implementation effect and other aspects of the existing steel-spring floating-slab track bed.The related research results have been applied in the demonstration project and achieved good results,which can provide reference for similar track reconstruction projects of national rail transit.