Landslides in the Carpathian flysch have a peculiar susceptibility to activation. This is due to the geological structure of the flysch. This study addresses analysing the effects of a landslide, particularly in regards to the operation of a transportation route that runs through the Carpathian flysch. The studies include both field work and laboratory testing of basic geotechnical parameters. The field work comprises surveys made by a terrestrial laser scanner. The study also includes a number of 2–D and 3–D numerical models. Subsequently, survey results and an analysis of the effects of landslide susceptibility and the behaviour of the road and terrain surface, due to the different loading conditions, are shown.

Abstract. In the Upper Silesian Coal Basin area, there are post-mining sites of shallow exploitation of metal ores and hard coal deposits that reveal discontinuous deformations. Most often, these areas are heavily urbanised and the appearing deformations may be dangerous to the existing building infrastructure. The work, described in this article, presents the results of the research, which aimed to rate the usefulness of laser scanning to recognize discontinuous deformations on surface areas located over shallow mining excavations. Two laser scanning measurements were taken over the course of a few months. The surface area images were compared to identify changes in its deformation, especially those areas located above mining excavations. The tests carried out by the laser scanning method showed that some of the identified discontinuous deformations could have been connected to the shallowly located mining excavations.

Abstract. The article presents the results of laboratory tests for determining the dynamic modules of the elasticity M and the shear G, for soil samples from the landfill of the closed Solvay Sodium Plant in Krakow. The tests were performed using a triaxial apparatus equipped with "bender" piezoelements. The samples subjected to these tests were taken from two boreholes, located in the area known as the "white seas", whose formation is the result of Solvay Plant activity throughout the 20th century. The location of the test holes was planned at the place in which a road known as the" Łagiewnicka route " was planned. Studies on soil stiffness were also conducted as part of the one of the dissertation from 2008 to 2010 in the Cracow University of Technology. The results of these tests and the results of the laboratory tests that are presented in the article will be used in the designing of a computer model. This model is intended to help in assessing the dynamic impact of motor vehicle traffic on the planned Łagiewnicka route on the structure of the existing buildings located in the former Solvay Plant.

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