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The paper presents the modelling and assessment of a road embankment body after different construction phases using the finite element method (FEM) and the limit equilibrium method (LEM) for slope stability assessment. Different material models of soil (Mohr-Coulomb, Modified Mohr-Coulomb and Drucker-Prager) were used for modelling and assessment by FEM method. The deformation of the subsoil and the embankment was determined for each construction phases and the stability of the embankment slopes was assessed. The results obtained were compared with respect to the soil material model used as well as with respect to the calculation method used. In conclusion, it was found that it is more appropriate to use non-linear material models for stability calculations. [ABSTRACT FROM AUTHOR]

The paper is focused on the assessment and analysis of slope stability. Slope stability analysis are generally aimed at determining the factor of slope stability for which the slope is safe. The key design parameters for assessment of slope stability are the shear stress parameters of soil. The aim of the parametric study was assessment and analysis the slope stability in fine-grained soil and point to the influence of shear strength parameters and change height of slope on the resulting factor of safety. According to this parametric study we can also monitor which of these parameters has a more significant effect on the resulting factor of safety. The results points to a decrease in the differences in the values of the calculated degrees of stability with respect to the increasing height of the slope, and also that this decrease is more pronounced when the cohesion of the soil changes. [ABSTRACT FROM AUTHOR]

In order to effectively design geotechnical structures and practice effective geotechnical risk management, it is necessary to anticipate the occurrence of potential hazards. The building structure forms an interconnected system with the subsoil. Problems are localized at the point of interaction of the engineering structure with the bedrock, and therefore the rock mass must be considered as a specific building material in the analyses. Its properties are known to be different from those of conventional building materials and the reliability of its properties is lower than, for example, concrete or steel. This difference has raised uncertainties and risks in predicting the behavior of rock mass. When design decision making is marked by a lack of knowledge and reliable knowledge, estimation and variance enter into the decision making process. This can result in unintended consequences. Therefore, both design and construction are burdened with possible uncertainties, which creates room, and in some cases, especially for large structures, a need, to assess possible geotechnical risks. [ABSTRACT FROM AUTHOR]

Levee failures due to floods may results in extensive damage to agricultural land, rural and urban infrastructures as well as human. Manuscript deals with failure and the calculation and assessment of stability of right bank protective levee at Laborec River, and suggests possible remedial measures, such as stabilizing mound, raising the levee crest and drainage of levee body. Classification of embankments, legislation dealing with protective embankments and valid standards, designing and description of failures of protective levees are also briefly mentioned in the paper. GEO 5 programme for geotechnics calculations using Petterson's and Bishop's methods were applied for levee stability assessment. Calculations were done for more alternatives. Better results were found out according to applying Bishop's method. [ABSTRACT FROM AUTHOR]

The design method used for the calculation of levels of noise caused by tramway transport in Slovakia (Liberko, 1991) has been in effect since 1991. Based on the knowledge acquired from foreign literature and comparisons with the design methodology applied in other countries, it is obvious that there is a need to re-evaluate some parts of this design method. In particular, a higher number of input parameters should be taken into account. The layout/location of the railway line is one of the parameters that significantly influence the level of noise. As this parameter has not yet been involved in the calculations, this paper analyses the possibilities and grounds for its use in noise prognoses [ABSTRACT FROM AUTHOR]

Nowadays, progressive technologies - technologies of bituminous materials reprocessing are used more and more in road constructions. Recycling is one of possible solutions of material and energy saving, as well as environment protection. In order to maximize such savings, it is crucial to know how the recycled material influences final characteristics of the mixtures and how the mixture consisting of recycled materials will behave in the road pavement construction. The deformation characteristics of road building materials are important inputs for the project and design of the road pavement structure. Modulus of elasticity, compressive modulus and Poisson number are considered the most important deformation characteristics. Knowledge about these deformation characteristics is very important for the design and assessment of mixtures with R-materials (recycled materials). [ABSTRACT FROM AUTHOR]