Autor: Coufal, R. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of bottom position changes in a lowland river on the basis of sediment transport
Autorzy:: Coufal, R.
Meyer, Z.
Powiązania:: https://bibliotekanauki.pl/articles/241067.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:: Odra River
bed position
sediment transport rate
Ackers-White's method
Opis:: The paper present an analysis of changes in the Odra River bed position, which is based upon the evaluations of intensity of the sediment transport rate, which is spe-cified by the modified Ackers-White's method. The case of flow between groins and the change of hydraulic conditions has been presented for the newly designed longit-udinal dam. The analyses were carried out for different flow intensities, comparing the results achieved with the measurement in the Hohensaaten-Bielinek section.
Źródło:: Archives of Hydro-Engineering and Environmental Mechanics; 2001, 48, 3; 7-16
1231-3726
Pojawia się w:: Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Hydraulic conditions of steady motion in an estuarial river section under wind influence
Autorzy:: Meyer, Z.
Coufal, R.
Powiązania:: https://bibliotekanauki.pl/articles/241091.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:: hydraulic conditions
steady motion
river estuaries
wind influence
swelling
Opis:: The effect of wind influence upon swellings in river estuaries has been presented in this elaboration. The wind, which causes shear stresses at the water surface, changes the vertical profile of water flow velocity and therefore is a factor causing wind swell-ings. This problem is very important in the estuarial river sections, especialIy in river inflows to reservoirs (sea), when natural slopes of flowing water are smalI and com-ponents of gravity farce are not able to oppose the wind effect. Then wind backwater occurs.
Źródło:: Archives of Hydro-Engineering and Environmental Mechanics; 2001, 48, 3; 59-83
1231-3726
Pojawia się w:: Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Peat consolidation -- new approach
Autorzy:: Mayer, Z.
Coufal, R.
Kowalów, M.
Szczygielski, T.
Powiązania:: https://bibliotekanauki.pl/articles/230952.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: wzmocnienie gruntu
konsolidacja gruntu
konsolidacja torfu
osiadanie
ground improvement
soil consolidation
peat consolidation
settlement
Opis:: The problem of consolidation of soil has been widely investigated. The basic approach was given by Terzaghi who assumed soil of constant physical and mechanical parameters. In the case of peat consolidation, the permeability coefficient of soil and the elasticity modulus are functions of the settlement which is an important additional factor. The model proposed here assumes varying the elasticity and permeability coefficients. Moreover, the settlement is described by the so-called elementary curve which was approximated empirically based upon laboratory tests. The model allows to consider the case when the filtration in the peat body goes in horizontal direction. It happens so when the charging layer does not receive outgoing water from the pores. The model includes also the case when the load involving consolidation varies in time i.e. the charging layer grows up gradually. The model has been applied practically in several cases and it comes that there is a good agreement between calculated and measured settlement of the consolidated peat layer.
Źródło:: Archives of Civil Engineering; 2011, 57, 2; 173-186
1230-2945
Pojawia się w:: Archives of Civil Engineering
Dostawca treści:: Biblioteka Nauki

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