Practical methods of observation of the impact of mining exploitation in the right-of-way on selected examples

The effects of underground mining on road surfaces are a serious problem. Deformed road surfaces significantly affect the comfort and safety of use. For example, discontinuous deformations characterized by discontinuity of the medium affect the condition of the road structure. Loosening the layers that make up the pavement structure reduces its stiffness and thus reduces the fatigue life of the pavement. Frequent repairs are the result. Therefore, it is important in mining areas to constantly monitor the condition of the facilities, determine the need and scope of surface repair. Various measurement methods can help, mainly geodetic measurement of displacements. Additionally, in order to monitor the condition of the road infrastructure, their operational features are determined, such as the condition of cracks and surfaces, longitudinal evenness or the depth of ruts. Subsoil surveys performed with geophysical methods are often required. In the research, both classical and modern measurement techniques were used to measure the deformation of the road surface in the mining area. The observations were made for a group of points constituting the observation line along the right-of-way. The changes that were observed were linear, discontinuous deformations and pavement undulations. In addition to identifying the geometric changes of the road, the method of assessing changes in pavement stiffness was also used.