Browsing Ústav geotechniky by Title
Now showing items 1-20 of 23
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(40)A/Ar-39 step-heating dating of phlogopite and kaersutite megacrysts from the Zelezna hurka (Eisenbuhl) Pleistocene scoria cone, Czech Republic
(Earth Science Institute, Slovak Academy of Sciences, 2020-08-15)(40)A/Ar-39 step-heating of mica and amphibole megacrysts from hauyne-bearing olivine melilitite scoria/tephra from the Zelezna hurka yielded a 435 +/- 108 ka isotope correlation age for phlogopite and a more imprecise ... -
Assessment of empirical formulae for determining the hydraulic conductivity of glass beads
(De Gruyter Open, 2018-08-14)Empirical formulae are often used in practice to quickly and cheaply determine the hydraulic conductivity of soil. Numerous relations based on dimensional analysis and experimental measurements have been published for the ... -
Assessment of the Landfill Barrier System through Numerical Analysis: Rehabilitation and Expansion of Belgrade Landfill Case Study
(MDPI, 2022-06-23)There are still many unmanaged landfills around the world that pose significant potential envi-ronmental problems. One of the largest unmanaged landfills in Europe, which has been used for more than 40 years to deposit ... -
Boron isotopic variations in tourmaline from metacarbonates and associated calc-silicate rocks from the Bohemian Massif: Constraints on boron recycling in the Variscan orogen
(China University of Geosciences, 2021-01-11)Various metacarbonate and associated calc-silicate rocks form minor but genetically significant components of the lithological units in the Bohemian Massif of the Variscan orogen in Central Europe. These rocks vary in terms ... -
Calibration of an advanced material model for a shotcrete lining
(IOP Publishing, 2017-09-21)Proper choice of a constitutive model is an essential part of any successful application of numerical methods in geotechnical engineering. In most cases, attention is paid to the soil constitutive model. For structural ... -
A comparative study on the applicability of six radiant floor, wall, and ceiling heating systems based on thermal performance analysis
(ELSEVIER, 2021-04-01)Holistic comparisons of radiant heating systems that would help make an informed decision on the selection of the most convenient system for the specific application are lacking. The applicability of six representative ... -
Energy-Pile Model Verification
(KGH, 2020-12-31)Equipping the foundation piles with a liquid circuit pipeline makes it possible to use the advantageous thermal capacity of the soil for heating and cooling buildings at low cost. The energy performance of the energy-pile ... -
An Evaluation of the Mathematical Models of Energy Piles
(Sciendo, 2020-04-03)A current trend is to reduce the energy performance of buildings by using alternative sources for heating and cooling. One of the most promising, and so far unprecedented sources of heating and cooling, is the use of energy ... -
Experimental and numerical study on the thermal performance of polycarbonate panels
(Elsevier, 2020-09-13)Polycarbonate panels are a specific type of transparent insulation material that can be usefully integrated in building envelope structures. As the applications for such systems are increasing, it was necessary to analyse ... -
Experimental study on time dependent behaviour of coarse aggregate concrete mixture for 3D construction printing
(Elsevier, 2023-04-20)This experimental study analyses coarse aggregate-containing and coarse aggregate-free materials from the perspective of additive manufacturing. The primary objective is to identify, through a series of experiments, the ... -
Feasibility of Using Energy Performance Contracting for the Retrofit of Apartment Buildings in Slovakia
(Sciendo, 2022-09-01)This study is focused on the feasibility of using energy performance contracting (EPC) for the retrofit of two apartment buildings constructed using precast concrete technologies in Slovakia decades ago. The retrofit ... -
Full-scale testing of Ground Anchors in Neogene Clay
(Elsevier, 2016-05-26)The research campaign aimed on the better understanding of behavior of prestressed soil anchors in neogene clay, including conduction of variety of in-situ (CPT, PMT) and laboratory (Triaxial test, Simple shear test an ... -
Geochemistry and Sr–Nd–Pb isotope characteristics of Miocene basalt–trachyte rock association in transitional zone between the Outer Western Carpathians and Bohemian Massif
(Earth Science Institute, Slovak Academy of Sciences, 2020-10-29)Representative samples covering all petrographic types of the Miocene subvolcanic (dykes and sills) basalt– trachyte rock association from the Uherský Brod area (UB, Moravia) in the Czech Republic were studied. The UB area ... -
Grouting below Subterranean Water: Erosional Stability Test
(MDPI, 2021-04-30)The article is focused on the medium-term negative effect of groundwater on the underground grout elements. This is the physical–mechanical effect of groundwater, which is known as erosion. We conduct a laboratory verification ... -
Heat storage efficiency and effective thermal output: Indicators of thermal response and output of radiant heating and cooling systems
(Elsevier, 2020-12-15)An alternative indicator of thermal response of radiant heating and cooling systems called heat storage efficiency (HSE) has been tested. The heat storage efficiency was compared with established indicators represented by ... -
Influence of Pressure Grouting on the Anchors Carrying Capacity in Fine Grained Soil
(Elsevier, 2013-05-16)The main purpose of this paper is to analyse the influence of pressure grouting on ground anchors pull out capacity in fine grained soils, using the finite element method (FEM). The grouting process is simulated by volumetric ... -
Lead isotope evolution of the Central European upper mantle: Constraints from the Bohemian Massif
(CHINA UNIV GEOSCIENCES, BEIJING, 2020-05-15)The Pb isotope composition of the upper mantle beneath Central Europe is heterogeneous due to the subduction of regionally contrasting material during the Variscan and Alpine orogenies. Late Variscan to Cenozoic mantle-derived ... -
Numerical Modelling of Slope Instability
(Elsevier, 2015-11-07)This article is dealing with stability of the highway cut in Eastern Slovakia. The cut is situated in rock environment of the Carpathian flysch, which in area of the cut mostly consists of shale with different degree of ... -
The Reinforcement of Sand by Fibres with a Non-Uniform Shape
(SCIENDO, 2021-06-12)The reinforcement of soil is used to improve its strength and stiffness. The standard method of soil reinforcement is an application of geosynthetics. Soil reinforcement by distributed discrete fibres represents an alternative ... -
Reinforcing of Sand With 3D Printed Fibres – Review of Properties, Fabrication of Fibres and Initial Testing Programme
(IOP Publishing, 2020-12-09)Fibre reinforcement is an effective method of soil improvement that presents an alternative solution to other more common methods of ground reinforcement such as mechanical stabilization by geosynthetics (geogrids, ...