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Wyszukujesz frazę "Zaczek-Peplinska, J." wg kryterium: Autor

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    Wyświetlanie 1-7 z 7
    Tytuł:
    Evaluation of possibilities to apply laser scanning for estimation of conditions of concrete
    Autorzy:
    Zaczek-Peplińska, J.
    Falaciński, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/224418.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    konstrukcje betonowe
    skanowanie laserowe
    concrete structures
    laser scanning
    Opis:
    Periodical surveys of concrete structures, performed within geodetic monitoring, may be implemented using laser scanners. Similarly to a tacheometer, the scanner determines spatial co-ordinates (X, Y, Z) of surveyed points, specifying the distance and angles. Besides the speed of operations, the parameter, which mostly differentiates the scanner from the tacheometer, is registration of the 4th co-ordinate – an intensity of reflectance of the returning light signal, emitted by the scanner. The analysis of recorded values of that additional, 4th co-ordinate may be applied in diagnosis of conditions of structures. The paper presents evaluation of possibilities to utilize results of laser scanning for determination of conditions of outer surfaces of construction of a water dam – variations in porosity and resistance of concrete.
    Źródło:
    Reports on Geodesy; 2011, z. 1/90; 537-544
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparison and analysis of forecasts of a numerical model of soil behaviour around an implemented investment and results of geodetic monitoring
    Autorzy:
    Zaczek-Peplinska, J.
    Popielski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/224807.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    konstrukcje betonowe
    skanowanie laserowe
    concrete structures
    laser scanning
    Opis:
    Surveying measurements, together with accuracy of elevation determinations, which may be currently achieved, remain the more reliable source of information concerning displacements of soils and foundations of buildings located close to newly constructed structures. A numerical model, which is used to forecast such displacements, should be verified basing on surveying monitoring. The paper presents comparison and analysis of results of surveying monitoring and forecasts of displacements, calculated basing on numerical modelling for a building located within an urban, densely built-up area, within direct neighbourhood of tunnels of the Warsaw underground railway. Results of 7 surveying control measurements: 4 in the period of implementation, 1 – in the period of post-implementation approval and 3 after completion of construction (6 and 10 months), were analysed. Guidelines concerning verification of the numerical model have been presented.
    Źródło:
    Reports on Geodesy; 2011, z. 1/90; 545-551
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of possibilities to use fern modelling in the process of modernisation of control networks for concrete dams
    Autorzy:
    Zaczek-Peplinska, J.
    Popielski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/225021.pdf
    Data publikacji:
    2007
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    zapora
    zapora betonowa
    metoda elementów skończonych
    FEM
    pomiary geodezyjne
    dam
    concrete dam
    finite elements method
    engineering surveying
    Opis:
    The paper presents analysis of possibilities to utilise results of modelling the work of concrete dam construction elements, obtained by means of the finite elements method (FEM), for the needs of modernisation of a control network. Such analysis should answer the question, whether - basing on the results of modelling with the use of currently controlled points of the object, as the network nodes, and pointing to zones (locations) of threats - it will be possible to formulate recommendations concerning the improvement of a set of controlled points and to perform related modifications of the existing control network.
    Źródło:
    Reports on Geodesy; 2007, z. 1/82; 417-423
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of possible utilisation of results of geodetic monitoring of displacements of structures and their surroundings for the needs of verification of digital models
    Autorzy:
    Zaczek-Peplinska, J.
    Popielski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/225348.pdf
    Data publikacji:
    2009
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    monitoring
    sieci geodezyjne
    geodetic networks
    Opis:
    Each well designed project, related to digital modelling for the needs of assessment of conditions of an engineering structure, contains comparison of results of numerical calculations with results of surveying, Usually, results of levelling, which determine differences of elevation of controlled points of the structure, are the subject of such comparison. Results of measurements of a horizontal network may be presented in a similar way. In the course of comparison, functional, structural and accuracy differences of digital models, as well as models based on results of surveying monitorine should be also considered. Comparison of modelling results with results of surveys may be performed for various purposes. Besides the diagnosis of current conditions of the structure, emergency or non-standard situations, such comparison may be performed for specific demands of geodetic services, and, in particular, the needs of modernisation of the geodetic control oetwork or in the process of the initial control of surveys. Such comparison may be performed in order to asses the digital model, developed basing on archive geological reconnaissance and/or verification of values of parameters of materials. The paper discusses the demands of verification of digital analysis by means of back analysis, as well as possibilities to utilise the results of geodetic monitoring for the needs of calculations. It should be noticed that the geodetic control network should be consulted with designers of the particular structure and with the entity which performed numerical analyses. Those issues are illustrated by means of the example of development of the control network and the numerical model for a building, which is jocated in the densely built-up area, within the direct neighbourhood of the Warsaw underground.
    Źródło:
    Reports on Geodesy; 2009, z. 2/87; 437-448
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Development of large concrete object geometrical model based on terrestrial laser scanning
    Autorzy:
    Zaczek-Peplinska, J.
    Popielski, P.
    Kasprzak, A.
    Wójcik, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/106781.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    terrestrial laser scanning
    numerical modelling
    finite elements method
    technical control of dam
    geodetic inventory
    skanowanie laserowe naziemne
    modelowanie numeryczne
    metoda elementów skończonych
    kontrola techniczna tamy
    inwentaryzacja geodezyjna
    Opis:
    The paper presents control periodic measurements of movements and survey of concrete dam on Dunajec River in Rożnów, Poland. Topographical survey was conducted using laser scanning technique. The goal of survey was data collection and creation of a geometrical model. Acquired cross- and horizontal sections were utilised to create a numerical model of object behaviour at various load depending of changing level of water in reservoir. Modelling was accomplished using finite elements technique. During the project an assessment was conducted to terrestrial laser scanning techniques for such type of research of large hydrotechnical objects such as gravitational water dams. Developed model can be used to define deformations and displacement prognosis.
    Źródło:
    Reports on Geodesy and Geoinformatics; 2014, 97; 91-102
    2391-8365
    2391-8152
    Pojawia się w:
    Reports on Geodesy and Geoinformatics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Monitoring technical conditions of engineering structures using the terrestrial laser scanning technology
    Autorzy:
    Zaczek-Peplinska, J.
    Pasik, M.
    Adamek, A.
    Kołakowska, M.
    Łapiński, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/106876.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    monitoring
    terrestrial laser scanning
    displacement
    monitorowanie
    skanowanie laserowe naziemne
    przemieszczenia
    Opis:
    The laser scanning technology offers quite new possibilities in the field of the existing monitoring of engineering structures. The basic advantage of the laser scanning technology is huge amount of measuring observations and practically complete geometric and spectral information about the measured structures, which may be required within the short time. In the context of detection of threatens related to deformations and displacements of building structures, the surface - quasi-continuous distribution of measuring points is one of the most important factors. which ensure the possibility to perform correct evaluation of safety conditions of investigated structures. The proposed technological solution offers a series of new possibilities and the resulting methodology of determination of deformations and displacements of various structures, will considerably increase the scope of possible works and analyses. This will also create the new segment of data, which will result in delivery of additional information concerning conditions of the structure to experts from various fields, such as, among others, civil engineering, construction or geotechnique, who monitor the given structure.
    Źródło:
    Reports on Geodesy and Geoinformatics; 2013, 95; 1-10
    2391-8365
    2391-8152
    Pojawia się w:
    Reports on Geodesy and Geoinformatics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research and development work carried out by the Chair of Engineering Geodesy and Measurement and Control Systems, Faculty of Geodesy and Cartography WUT - thematic scope and achievements
    Autorzy:
    Nowak, E.
    Malarski, R.
    Prószyński, W.
    Sadowska, A.
    Woźniak, M.
    Zaczek-Peplinska, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1396876.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    engineering surveying
    Chair of Engineering Geodesy and Control-Measuring Systems
    scientific research
    inżynieria geodezyjna
    Katedra Inżynierii Geodezyjnej i Systemów Pomiarowo-Sterujących
    badania naukowe
    Opis:
    Geodetic engineering surveys are an important part of the works carried out by the Faculty of Geodesy and Cartography, Warsaw University of Technology. These works concern measurement techniques as well as advanced result analysis methods applied in precise industrial surveys and in processes controlling object’s behaviour over time. The thematic scope of research realised by Chair of Engineering Geodesy and Control-Measuring Systems shows that article related to geodetic engineering measurements and geodetic monitoring is carried out with high intensity, resulting in technological advancement and implementation of new or improved measurement solutions and methods of measurement result development.
    Źródło:
    Reports on Geodesy and Geoinformatics; 2016, 100; 201-219
    2391-8365
    2391-8152
    Pojawia się w:
    Reports on Geodesy and Geoinformatics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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