Steel-concrete composite girder bridge boasts the advantages of strong rigidity,low noise and low construction height.Along with the large-scale construction of
Risk evaluation is fundamental to eliminate and prenent any kind of public emergencies ,while that for railway public emergencies is the foundation to guarantee
As an intationally popular mode of public infrastructures’ investment,construction and operation,BOT (build-operate-transfer) has been successfully applied in
Since the 6th-round railway speed-up campaign,a large number of new technologies and equipment have been applied and put into operation,and the technical condit