Damage to Road Pavements in the Area of Linear Discontinuous Deformations on the Surface Caused by Deep Mining

Abstract

Deep mining extraction causes deformations on the surface, which have a negative impact on road pavements located in the area of their influence. Discontinuous deformations are a special case of surface mining deformations, which arise in the area of impact of deep mining extraction where longwalls in subsequent seams are overlapped. These deformations take the form of surface thresholds, which are often accompanied by the discontinuity of the subsurface soil layer. In the article, this type of damage which occurs on the roadway, in particular on the road pavement, was characterized. The damage leads to the deterioration of longitudinal evenness of pavement, which causes discomfort during driving, and may even pose a threat to road traffic safety.