Procházení Acta Polytechnica CTU Proceedings. 2022 ( vol. 32-39) dle data publikování
Zobrazují se záznamy 1-20 z 290
-
THE BÍLINA TUNNEL – SELECTED GEOTECHNICAL ASPECTS OF A PROPOSED UNDERGROUND STRUCTURE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Every workday the city of Bílina, with the I/13 road running through it, suffers from traffic congestion. The road is designed as dual carriageway outside Bílina but only as a single carriageway inside the city. Three ... -
THE IMPORTANCE OF A COMBINED 3D MODEL OF GROUND AND GEOTECHNICAL STRUCTURE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The rapid progress of digitalisation in civil engineering is also happening in the branch of geotechnical engineering. BIM is a part of this process. The mutual connection of a 3D model of ground with a 3D model of ... -
CONSIDERATIONS FOR BRITTLENESS IN TAILINGS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Brittleness is an important geotechnical parameter of soils as it describes the degree of reduction of the soil shear resistance after reaching the peak strength. [1] described soil brittleness by means of a brittleness ... -
CALCULATION OF SEISMICALLY LOADED EARTH RETAINING STRUCTURES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Eurocode 1998-5 for the design of earth retaining structures in seismic conditions describes calculations using the Mononobe-Okabe method. This simplified quasi-static procedure is to some extent very conservative. The ... -
VERIFICATION OF THE BEARING CAPACITY OF PILES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The location of the buses in the basement of the new bus station in Bratislava, supplemented by two further parking floors below, shifted the foundation joint of the new bus station to a depth of approximately 14 m. The ... -
REMEDIATION OF A RAILWAY EMBANKMENT USING GEOCELLS AND DEEP SOIL MIXING - A NUMERICAL ANALYSIS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Progressive settlement of the embankment under the railway track near Žďár nad Sázavou, the Czech Republic, has been observed for many years. Immediate improvement was needed to secure the safety of the traffic and to ... -
INFLUENCE OF NEW CONSTRUCTION PROJECTS ON VINOHRADY TUNNELS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)After demolition of the brutalist architectural style Transgas building in Vinohradská Street, Prague, (all buildings of which were located above the historic Vinohrady tunnels II and III), there will be built the Vinohradská ... -
Life cycle assessment of carbon concrete composites: a circular economy path beyond climate mitigation?
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Sustainable construction and materials play an ever-important role to stay within our planetary boundaries. In support, innovative carbon concrete composites (CCC) promise significant raw material savings by integral design. ... -
Breakthrough of the resemblances and correspondences between resilience and sustainability in civil infrastructures
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Sustainable construction has become a growing trend among researchers and stakeholders. Simultaneously, resilience and risk assessments for civil Infrastructures have flourished in terms of importance among researchers, ... -
Quantifying uncertainties in the sustainability evaluation of concrete materials considering regional characteristics in Japan
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)In the evaluation of concrete sustainability, what constitutes "sustainable" to one region may vary from another. This often leads to methodological forms of uncertainties that makes the evaluation process more complex. ... -
Rational and sustainable procedure in the design of bridges using pre-stressed concrete beams a theoretical practical method
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Currently there is not a direct procedure for the design of this bridge system, the procedure is still based on trial and error, there are no studies that give us both the optimum number of beams and other characteristics ... -
Determination of in-situ concrete compressive strength under consideration of rearrangement effects
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)For the design of existing structures the concrete compressive strength and the derived mechanical parameters are of central importance. Due to safety reasons the compressive strength of existing concrete is usually set ... -
Reduction of dissolved oxygen in minimizing corrosion
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Concrete structures are susceptible to corrosion especially when exposed to marine environment. In order to minimize the corrosion in reinforced concrete, reduction of dissolved Oxygen (DO) in mixing water is recommended. ... -
Life cycle management of concrete structures based on sustainability indicators
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)A concrete structure should be sufficiently planned, designed, executed and maintained to ensure its requirements during the life cycle. However, structures suffering from serious deterioration in structural members and ... -
Effect of using biomass fly ash on the concrete sustainability
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Biomass fly ash has been studied has a partial cement material, since this material has a positive effect on concrete properties. Even though, some mixes with BFA presents a positive benefit, they need to be economically ... -
The status of sustainable concrete codes in the United States
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)As the focus on embodied carbon within the built environment has grown in the U.S., local jurisdictional codes have increasingly proposed and implemented code language that requires the use of concrete mixtures that have ... -
Proposal of point-wise power reconstruction for IRT-4M fuel assemblies in coupled Monte-Carlo calculations
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Current efforts to develop high-fidelity multi-physics tools for research reactors with IRT-4M fuel leads to the involvement of Monte-Carlo transport and subchannel thermo-hydraulic codes in the process of safety assessment. ... -
Spectrometry of neutron field based on p(20)+Be source reaction
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The research deals with a spectrometry of neutron field based on the p(20)+Be source reaction. The p(20)+Be interaction stands for a nuclear reaction where protons accelerated to energy of 20 MeV bombard Be target. Produced ... -
On the ongoing computation of the LVR-15 reactor fuel burnup
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Isotopic composition of the LVR-15 reactor fuel changes significantly during the operation time. In order to enable Monte Carlo calculations of the LVR-15 core throughout any reasonable time period, the isotopic compositions ... -
Determination of radionuclide impurities in pure beta radiation sources by semiconductor spectrometry
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)In many applications, the radionuclidic purity of a radioactive substance is a crucial property. It involves, for example, the production of radiopharmaceuticals or reference standards used in metrology. However, the ...