Analysis of rockfall hazards based on the effect of rock size and shape

SK Nagendran, MAM Ismail - International Journal of Civil Engineering, 2019 - Springer
Rock sizes and shapes influence the trajectories of rockfall. Thus, this study examined the
bounce height and runout distance of falling rocks on the basis of different rock sizes, rock …

A semi-empirical impact force model of irregular rockfall on granular layer and its experimental validation

W Li, S Yan, D Wang, H Zhang, G Scaringi, B Xiang… - Acta Geotechnica, 2024 - Springer
Rockfalls can pose a significant threat to traffic safety in mountainous areas. Galleries
covered by a granular layer have proven effective in protecting both the people and the …

Displacement-based approach for the assessment of overturning stability of rectangular rigid barriers subjected to point impact

NTK Lam, ACY Yong, C Lam, JSH Kwan… - Journal of …, 2018 - ascelibrary.org
In this paper, a new design approach based on the principles of energy and momentum
conservation is proposed for the design of free-standing rigid barriers subject to point …

Influence of deflector on the impact dynamics of debris flow against rigid barrier

CWW Ng, Z Li, YD Wang, H Liu, S Poudyal… - Engineering …, 2023 - Elsevier
A deflector is a structure installed at the crest of a rigid barrier to prevent the over-spilling of
debris flow from damaging the downstream infrastructures and human lives. Despite its clear …

Shallow landslide full-scale experiments in combination with testing of a flexible barrier

L Bugnion, C Wendeler - WIT Transactions on Engineering Sciences, 2010 - witpress.com
Open shallow landslides occur regularly in a wide range of natural terrains. Generally, they
are difficult to predict and result in damages to properties and disruption of transportation …

Large-scale physical modelling study of a flexible barrier under the impact of granular flows

DY Tan, JH Yin, WQ Feng, JQ Qin… - Natural hazards and …, 2018 - nhess.copernicus.org
Flexible barriers are being increasingly applied to mitigate the danger of debris flows.
However, how barriers can be better designed to withstand the impact loads of debris flows …

Prediction of the bullet effect for rockfall barriers: a scaling approach

M Spadari, A Giacomini, O Buzzi… - Rock Mechanics and Rock …, 2012 - Springer
The so-called “bullet effect” refers to the perforation of a rockfall protection mesh by impact of
a small block, which has a kinetic energy lower than the design value, where the design …

Analysis of rockfall and its impact on the cut-and-cover tunnel in dynamics

S Shuzhi, K Jiming, W Chenghua, C Zefu… - Wuhan University Journal …, 2006 - Springer
This paper presents the effect of thickness of Buffer layer on the safety of cut-and-cover
tunnel under the given magnitude and height of rockfall, and the limit load of the structure …

Impulse load characteristics of bouldery debris flow impact

D Song, CE Choi, GGD Zhou, JSH Kwan… - Géotechnique …, 2018 - icevirtuallibrary.com
Boulders entrained in debris flows are the main cause of damage to debris-resisting
structures. Poly-dispersity leads to grain-size segregation, which causes boulders to migrate …

[PDF][PDF] A simple analytical method for evaluation of flexible rockfall barrier part 1: working mechanism and analytical solution

ZX Yu, YK Qiao, L Zhao, H Xu, SC Zhao… - Advanced Steel …, 2018 - ascjournal.com
The flexible rockfall barrier system exhibits large deflection and complex contact behaviors
such that sophisticated finite element method and full-scale test are widely used to design …