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Wyszukujesz frazę "Benamara, Fatima Zohra" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Contribution to the study of soil stabilized by ballast columns
Autorzy:
Benheikh Boutahir Born, Messaouda
Aidoud, Assia
Benamara, Fatima Zohra
Powiązania:
https://bibliotekanauki.pl/articles/396120.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
ballast columns
compressible soils
study of soils
soil stabilizer
in situ
słupy balastowe
grunty ściśliwe
badania gruntów
stabilizowanie gruntów
Opis:
Ballasted columns are an interesting technique for improving compressible soils in situ. Their major advantages are to reduce compaction, increase the bearing capacity of soils, accelerate consolidation, and eliminate the risks of liquefaction during earthquakes. Thanks to these advantages, reinforcement processes are considerably developed in the field of geotechnical construction and this is on an international scale. Numerical modelling is a necessary and effective alternative for approaching the real behavior of soils reinforced by ballasted columns. The present work aims to change several parameters, being, among others, the number of columns, the rise of the water table, and the friction angle. With this in mind, a parametric study was carried out in order to determine the influence of certain parameters on the settlement results and observe their influence on the mechanical behavior of the soil using the Plaxis 2D calculation code. This study found that the correct choice was based on the number of columns, which is three, while the increase in groundwater level does not have a significant influence on the results.
Źródło:
Civil and Environmental Engineering Reports; 2020, 30, 3; 234-252
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stability of anchored retaining walls under seismic loading conditions to obtain minimal anchor lengths using the improved failure model
Autorzy:
Benamara, Fatima Zohra
Rouaiguia, Ammar
Bencheikh, Messaouda
Powiązania:
https://bibliotekanauki.pl/articles/396160.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
anchored retaining walls
safety factor
stability
seismic loading
failure model
Plaxis 2D
kotwione ściany oporowe
współczynnik bezpieczeństwa
stabilność
obciążenie sejsmiczne
Opis:
Anchored retaining walls are structures designed to support different loading applied in static and dynamic cases. The purpose of this work is to design and study the stability of an anchored retaining wall loaded with different seismic actions to obtain minimal anchor lengths. Mononobe-Okabe theory has been applied for the evaluation of seismic earth pressures developed behind the anchored wall. Checking the dynamic stability of anchored retaining walls is usually done using the classic Kranz model. To take into consideration the effects of the internal forces developed during failure, we have proposed a new model, based on the Kranz model, which will be used as the Kranz model to find the critical angle failure performed iteratively until the required horizontal anchor length is reached for a minimum safety factor. The results of this study confirm that the effect of the seismic load on the design of an anchored retaining wall, and its stability, has a considerable influence on the estimation of anchor lengths. To validate the modifications made to the new model, a numerical analysis was carried out using the Plaxis 2D software. The interpretation of the obtained results may provide more detailed explanation on the effect of seismic intensities for the design of anchored retaining walls.
Źródło:
Civil and Environmental Engineering Reports; 2020, 30, 3; 214-233
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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