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Wyszukujesz frazę "Chrzanowski, M." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Interconnection between monitoring and deterministic modeling of the behavior of large earth dams
Autorzy:
Szostak-Chrzanowski, A.
Massiera, M.
Chrzanowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/225009.pdf
Data publikacji:
2007
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
zapora ziemna
zapora narzutowa
monitoring przemieszczeń
pomiary geodezyjne
earth dam
fockfill dam
monitoring of displacements
engineering surveying
Opis:
Monitoring of deformations, whether using geodetic or geotechnical instrumentation, besides providing a warning system in case of an abnormal behaviour of the dam, may be used as a tool for a verification of design parameters. By comparing results of monitoring measurements with a deterministic (a-priori) model of deformation, one may determine and explain causes of deformation in a case of unexpected behaviour of the investigated object and its surrounding. Thus, the role of monitoring becomes much broader than just the conventional determination of the status of the deformable object. On the other hand, a predicted behaviour of the dam may be used in designing the monitoring scheme, giving information on the magnitude and location of the expected maximum deformation parameters. In addition, with properly designed monitoring surveys, one may also determine the actual deformation mechanism. The discussed problems are illustrated by three types of earth dams located in California, USA, and in Quebec, Canada.
Źródło:
Reports on Geodesy; 2007, z. 1/82; 345-351
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concrete face rockfill dams - new chalenges for monitoring and analysis
Autorzy:
Szostak-Chrzanowski, A.
Massiera, M.
Deng, N.
Powiązania:
https://bibliotekanauki.pl/articles/225356.pdf
Data publikacji:
2009
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
betonowa tama kamiennych twarzy
analiza deformacji
metody elementów skończonych
concrete face rockfill dam
deformation analysis
finite element method
Opis:
Concrete face rockfiil dams (CFRDs) are gaining a worldwide recognition as the most economical type of dams to be constructed in extreme northern and sub-Antarctic regions. Safety of CFRDs depends on the proper design, construction, and monitoring of tual behaviour during the construction and during the operation of the structure. The main concern for the safety of CFRDs is the deformation of the concrete face. During the reservoir filling, the load of water and deformations of the dam rockfiil force upstream concrete slab to deform. The displacements of the concrete face during the reservoir filling should not exceed the maximum allowed values in order to maintain the structural integrity of the concrete face. Due to uncertainty of the model parameters, careful monitoring of the dams and their surroundings are required in order to verify and enhance the model. This paper presents a study of the behavior of the upstream concrete face slabs and internal displacements that develop in the rockfiil during construction and during filling the reservoir. The research is based on two examples: the Toulnustouc Dam (75 m) located in Northern Quebec, Canada, and the Shuibuya Dam in P. R. China, the tallest (233 m) concrete face rockfiil dam in the world. The results of in study serve also as a basis for designing deformation monitoring schenies for the conete face rockfiil dams.
Źródło:
Reports on Geodesy; 2009, z. 2/87; 381-390
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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