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This study outlines the solution to the problem caused by too large numbers of hiking tourists and skiers walking on top of the Kasprowy Wierch Mountain in the Tatra National Park, between three ski stations (one cable car and two chairlifts). Their choice of route is limited mostly due to a large difference in altitude between the top chairlift station on the Gasienicowa Glade and two other ski stations. To improve the conditions in the area of those ski stations a solution was sought that would permit an easy pa...

First part of the paper presents the monitoring project of Turdas tunnel with the detailing of the monitoring equipment. Building of Turdas tunnel was realized for ensuring the maximum speed of 160km/h for passenger trains. In order to build the tunnel was provided a provisional support and a final support, due to difficult field conditions, obtained from the geotechnical studies, because of the presence of the swelling soil. To achieve safe construction of the tunnel were mounted specific monitoring equipment in ...

Interfaces of rocks with different mechanical properties influence on seismic stress field appearing in rock mass during the earthquake. This influence may increase seismic load applied to underground objects located near the interface, so it should be taking into account in seismic analysis of the structures. For this aim the problem of elasticity theory about stress state of the ring supporting an opening in the half-plane, which is united with a half-plane of another material is considered. Lengths of seismic w...