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Serviceability of cut slope and embankment under seasonal climate variations

Apriyono Arwan, Yuliana, Kamchoom Viroon

Acta Geophysica

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2023

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Vol. 71, no. 2

983--995

EN

In the next 20 years, there will be an extensive investment in transport infrastructure. Although the cut and embankment slopes seem to have the same appearance, they have different responses to climate variations. Understanding their characteristics and performance is necessary to design a safer and more sustainable slope infrastructure. This paper provides a thorough examination of the seasonal performance of cut slopes and embankments. Furthermore, this study suggests an introduction to the impacts of climate change, amplifying seasonal shrinkage–swelling and progressive failure of slope construction under extreme drought and precipitation. Volumetric water content and pore water pressure fluctuations due to seasonal variation were analysed and compared from both the cut slope and the embankment. Moreover, stress path and slope deformation were also investigated in this study to understand the behaviour of the cut slope and the embankment. The results suggest that the cut slope retains more pore water pressure during the wet season due to its lower permeability than an embankment with respect to the construction history. However, pore water pressure and displacement in the cut slope tend to be increased due to the consolidation process after excavation, which requires more time to reach equilibrium. In addition, greater displacement in the cut slope can increase the possibility of delayed failure in the future.

2

Zabezpieczenie skarpy drogowej w rejonie osuwiska we fliszu karpackim

Sternik K., Grygierek M.

Magazyn Autostrady

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2009

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Nr 10

138--145

EN

Cut slopes of deep excavations are particularly exposed to instability due to rebound. One method of their protection is ground anchoring. An example of slope failure is presented in the paper. The slope was made during the construction of an expressroad in 1999. The mass movements have led to damage of a side road performed near the crest. The causes of instability and damage of the side road as well as solutions proposed to protect the slope and road have been described in detail.

3

Analiza stateczności gwoździowanej skarpy w ujęciu metody elemetów skończonych

Sternik K.

Zeszyty Naukowe. Budownictwo / Politechnika Śląska

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2007

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z. 111

383-390

PL

W pracy przedstawione są wyniki analiz numerycznych MES dwóch wzmocnionych skarp. Modele numeryczne uwzględniają dwa warianty wzmocnienia: z użyciem elementów belkowych i prętowych. Uwaga skoncentrowana została na wyznaczonych wartościach współczynników bezpieczeństwa.

EN

Two reinforced cut slopes make the subject of numerical analyses by FEM. Numerical models take into account two possible ways of modelling of reinforcement: by beam elements and by truss elements. Attention has been focused on safety factor values determined in each case.