Design of Bitumen Asphalt Belt Sliding Joint Based on Experiment Results

Foundation structures are usually exposed to dominant vertical load. However, in some cases there is also significant value of horizontal load caused e.g. by horizontal terrain deformation on areas attached with underground mining or by horizontal deformation of foundation structure due to pre-stressing, creep, shrinkage, and temperature variation. Through the friction between subsoil and foundations, the foundation structure must resist significant normal forces. The idea of sliding joints between subsoil and foundation structure, which eliminates the friction in footing bottom, comes from the 1970’s. The bitumen asphalt belt given rheological properties has been proven as an effective material for sliding joints. In the paper there are test results of shear resistance of currently used asphalt belts. The test results are used for subsoil shear stress analysis in model example of strip foundation. Shear resistance is calculated according to Czech code for designing buildings on undermined area and also using advanced FEM analysis.

Roads Problems on Undermined Areas in the Moravian-Silesian Region

Quality life and prosperous district is strongly connected with quality functional road infrastructure. One of the tools that can help is Pavement Management System. Pavement management system used in undermined area must take into account different degradation factors, which affecting disturbances on the roads. It is difficult to choose sufficient technology for its repair. Chosen repair should be from the economical and technological aspect as effective. This article refers to the gaps in the current pavement management system when its use in such affected areas. According to the long-term observation was made classification of roads disturbances and design of their repairs. This contributes significantly to obtain comprehensive knowledge of interactions between soil and road elements.