ABSTRACT

Transportation infrastructure, like motorway and railways, when situated in subsidence areas, are subjected to the multiparameter reactions of soil due to subgrade deformations. The essence of technical degradation of such objects due to mining-induced subsidence entails changes in their functional and stability-strength properties. These changes take place within the structural system itself and, also in its subgrade. The linear character of such objects creates a specific type of interaction between the subgrade and the elongated structure. The type of mining-induced contact reactions and the magnitude of service loads determine the operating capability of structures under these specific conditions.