Abstract: The sleeper/ballast interface is an essential stage in the transfer of train loads from a railway track structure into the ground. Generally, only a small number of ballast grains support the sleeper base. The resulting ...

Abstract: A two-phase liquid/gas flow numerical model has been used to investigate the presence of elevated pore water pressures in a 20-m-deep municipal solid wastes (MSW) landfill underlain by a fully drained leachate collection ...

Abstract: National infrastructure systems (energy, transport, digital communications, water, and waste) provide essential services to society. Although for the most part these systems developed in a piecemeal way, they are now an ...