Abstract A high-speed railway has high requirements for line smoothness, and uneven settlement control is the primary factor considered in design operation of subgrade. The emergence lightweight subgrade structures meets needs development railway. As a kind filling material with good performance, foam concrete can effectively reduce load excessive cost foundation treatment. This paper studied d...

In this paper, the Difference of Seismic Response across Different Spans (DSR) in longitudinal distribution High-Speed Railway Multi-spans Simply Supported Bridge (HSRSB) under earthquake excitation is investigated, and an evaluation method which can intuitively reflect difference seismic response proposed. A feasible way to strengthen connection stiffness between adjacent girders proposed cont...

The excavation of a new high-speed railway causes the side slope adjacent to existing line foundation become airborne, and excessive dynamic deformation or cumulative caused by load trains will affect normal service subgrade, even leading its instability. To date, there are no relevant experimental data regarding this, is also lack corresponding specifications. only available numerical simulati...