METHOD FOR CONSTRUCTION OF SAG-LESS STRUCTURE OF TWIN COURSES WITH SHALLOW LAYING

摘要

Method for construction of sag-less structure of twin courses of shallow laying metro includes construction of twin run courses of shallow-laying metro on common reinforced-concrete plate placed on sand-ballast bed. The common plate is made with side reinforced-concrete flaps along the courses, and the boxes of both courses are fixed with girth rails rigidly immured in the ceilings of twin courses.