The Effect of the Vertical Acceleration on Stability Assessment of Seismically Loaded Earth Dams

• Autorzy: Korzec A.

Identyfikatory

DOI

10.1515/heem-2016-0007

• Języki publikacji: EN

Abstrakty

EN

In the assessment of slope stability, the vertical component of acceleration is commonly neglected. However, signal analyses performed on a large number of acceleration time histories have revealed that the vertical peak ground acceleration can be as high as the horizontal one. In this paper, a method of slope stability analysis regarding the vertical component of acceleration is proposed. It considers a rigid body system affected by the acceleration time histories in both horizontal and vertical directions. In a general case, the strength of the contact between acceleration components is time dependent. Parametric analysis was performed on the basis of cyclic harmonic loading, assuming a safety criterion in the form of permanent displacement. The results, for both harmonic and real acceleration time histories, were compared with the results of the commonly used Newmark’s sliding block approach, which revealed significant differences in permanent displacements calculated by the two methods.

Słowa kluczowe

EN

slope stability analysis; dynamics; Newmark method; accelerogram

• Wydawca: Institute of Hydro-Engineering of Polish Academy of Sciences
• Czasopismo: Archives of Hydro-Engineering and Environmental Mechanics
• Rocznik: 2016
• Tom: Vol. 63, nr 2-3
• Strony: 101--120
• Opis fizyczny: Bibliogr. 32 poz., rys.

Twórcy

autor

Korzec A.

• Institute of Hydro-Engineering, Polish Academy of Sciences, ul. Kościerska 7, 80-328 Gdańsk, Poland

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).