Journal article

Overturning stability of L-shaped rigid barriers subjected to rockfall impacts

Carlos Lam, Arnold CY Yong, Julian SH Kwan, Nelson TK Lam

LANDSLIDES | SPRINGER HEIDELBERG | Published : 2018

Abstract

Reinforced concrete barriers are commonly used as defence measures in hilly areas to contain falling boulders and landslide debris. These barriers are conventionally designed to satisfy the conditions of force and momentum equilibrium with a factor of safety. A major limitation of this approach is that the inertial resistance of the barrier is neglected such that the design could be over-conservative. This paper presents a novel displacement-based approach for the assessment of overturning stability of rigid L-shaped barriers subjected to rockfall impacts. Analytical solutions, which are derived based on conservation of momentum and energy, are used to take into account the contributions of ..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council (ARC) Discovery Project


Awarded by Research Grants Council of the Government of the Hong Kong SAR, China


Funding Acknowledgements

Financial support from the Australian Research Council (ARC) Discovery Project DP170101858 entitled New Approach for Design of Barriers for Impact is gratefully acknowledged. The third author is grateful for financial support from the theme-based research grant T22-603/15-N provided by the Research Grants Council of the Government of the Hong Kong SAR, China. This paper is published with the pennission of the Head of Geotechnical Engineering Office and the Director of Civil Engineering and Development of the Government of the Hong Kong SAR.