Acta Polytechnica CTU Proceedings. 2023 ( vol. 40-45)
Kolekce v této komunitě
Poslední příspěvky
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Considerations on an embedded pile’s effective length in an analytical calculation according to the commentary on the STN 73 1002 standard
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The analytical model for calculating the bearing capacity of a pile, presented in the commentary to STN 73 1002 – Pile Foundations, gives a recommendation to reduce the pile’s length in the calculation of the shaft resistance. ... -
Possibilities of complex numerical modelling at the Czech Geotechnical Society workplace
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)In the paper, there are examples of complex geotechnical problems in both 2D and 3D that are modelled using PLAXIS software on the specialist workstation provided by the Czech Geotechnical Society to their members. -
Evaluation of deformation and strength parameters of organic soils for the design of geotechnical structures
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The evaluation of deformation and strength parameters of Holocene organic soils obtained from DMT dilatometer tests based on empirical relationships and ANN Artificial Neural Networks is presented. The evaluation of undrained ... -
Geophysics for underground engineering
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The growth of underground engineering brought a need for the use of geophysical methods for research of underground constructions rather different in approach compared to that of civil engineering. These changes relate to ... -
Integrated cyclic timetable on the railways in the Karlovy Vary region
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The concept of public transport with periodic timetables has been slowly spreading in the Czech Republic for many years. Together with the announcement of tenders for the operation of compulsory transport according to the ... -
Earth structures – a summary of the last 50 years
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)This paper discusses changes and developments in the field of Earth Structures that have been presented and discussed over the last fifty years at the annual national conferences on Foundation Engineering held (with foreign ... -
Directing classical geotechnical engineering to future challenges
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Geotechnical engineers have traditionally been focused on soil mechanics, rock mechanics and engineering geology. Thus it has been sufficient to master these topics to be recognized as a key participant in building and ... -
An exploratory gallery for Luka tunnel on the D3 motorway
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The Luka tunnel is designed for the 0302 Jílové – Hostěradice section of the D3 motorway. This has a length of 1843m and will consist of two tunnel tubes of T 9.5/100 category. It is proposed that a 1354m long exploratory ... -
Long-term experience of the thermo-active ground source system at the metro station Taborstrasse in Vienna
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Four of the stations newly opened during the underground extension of the U2 line in Vienna in 2008 have been covering a large part of their heating and cooling needs for now almost one and a half decades by using geothermal ... -
Collapse potential and ultrasonic pulse velocity of loess soils after treatment with expanded perlite and metakaolin
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Collapsible soils, including loess, can support heavy loads at their natural humidity but then collapse rapidly and lose a substantial volume when the humidity increases. Soil collapse potential at different immersion ... -
Quality improvement by application of a revised standard – feasibility studies on 2500 soundings
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)CPT is a geotechnical investigation method that, depending on the geology, has been proved to be an essential tool to establish the Geotechnical Design Model. However, doubt has been raised about the quality of the data. ... -
Providing stability to a highway cut in a landslide area with the use of diaphragm wall panels
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The route of the D1 highway in the Lietavská Lúčka - Dubná Skala section near Žilina is taken forward by a 17 m deep cut in a section about 300 m long. The first proposed solution of the highway route was based on the ... -
Experience with sleeper substructure design for a speed of 200 kph according to the S4 standard
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The paper deals with the sleeper substructure design for a speed of 200 kph according to the Czech SŽ S4 standard. The paper includes the design of sub-ballast and capping layers. The second part of the paper is focused ... -
Determining 3D coordinates based on the track geometry description
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)This paper is focused on the data description of the railway infrastructure. Its aim is to present the possibilities of constructing of linear elements representing tracks in 2D and their subsequent transformation into 3D ... -
Evaluation of ATLHAMC12 subchannel code for total loss of flow scenario
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The ALTHAMC12 subchannel code is a new subchannel code developed by the ALVEL company. The code is intended for DNBR safety analyses of the Czech nuclear power plants. In order to validate the code, a code to code comparison ... -
Artificial intelligence in operational applications of railway infrastructure manager
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The main goal of this article is to present the possibility of using artificial intelligence in operational application of railway infrastructure manager. Railway 4.0 can be controlled fully digitally – operational ... -
Simulation assessment of the headway under the ETCS L3
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)This paper deals with a simulation assessment of the impact of the introduction of ETCS L2 and L3 on the capacity of railway lines. The simulation itself is carried out in the OpenTrack simulation software, especially in ... -
Recycled materials for sublayers
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The article focuses on the recycled materials used in sleeper substructure. In the introduction, it summarizes the requirements for bearing layers of railway substructure and recycling of waste construction materials. The ... -
Proposal of operational concept for bulk substrates transport by freight trains and its application within case study of aggregate transport for construction of Vlachovice dam
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Railway freight transport represents an advantageous way for regular transport of bulk substrates. As a result of changes within the industry and energy sectors as well as in the field of consumer behaviour, such business ... -
Length of transfer time between connecting trains – is there an ideal value?
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Quality public transport is an essential part of global mobility. In general, there is an effort to ensure that as many transport users as possible use public transport. The public transport subsystems also include rail ...
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