Abstract
Landslides and rockfalls are major hazards in mountainous regions. The level of hazard tends to be on the rise amid climate change. Rockfall barriers are constructed as protective measures to protect lives and built infrastructure. Landslide hazard can be accentuated by the impact of boulders on protective installations such as reinforced concrete barriers. Impact action can be divided into localised and global actions. Localised actions are controlled by the amount of contact force generated by the impact. Contact force can be many times higher than quasi-static force which can cause permanent damage to the structure. A large scale experimental investigation was carried out on a reinforced concrete barrier with 280 and 1020 kg hemispherical headed steel impactors. Localised effects on concrete barrier at different impact locations have also been investigated. Experimental data recorded from large scale test will be presented in this paper. It is observed that the amount of contact force at different impact locations are not the same although the amount of delivered impact energy is the same. At high velocity of impact and hence high rate of loading shear failure can be the dominating failure mechanism.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
ASTRA (2008) Einwirkungen infolge Steinschlags auf Schutzgalerien (in German), Richtlinie, Bundesamt für Strassen, Baudirektion SBB, Eidgenössische Drucksachen-und Materialzentrale, Bern
Badger T, Duffy J, Schellenberg K (2012) Protection. Characterization and Control, Rockfall, pp 495–525
British Standard Institute (2008) Eurocode 1—actions on structures—Part 1–7: general actions—accidental actions (S.P. committee edn). European Committee for Standardization, London
Japan Road Association (2000) Manual for anti-impact structures against falling rocks (in Japanese)
Kawahara S, Muro T (2006) Effects of dry density and thickness of sandy soil on impact response due to rockfall. J Terrramech 43(3):329–340
Kishi N, Okada SY, Kon-No H (2009) Numerical impact response analysis of rockfall protection galleries. Struct Eng Int 19(3):313–320
Menétrey P (2002) Synthesis of punching failure in reinforced concrete. Cem Concr Compos 24(6):497–507
Mougin JP, Perrotin P, Mommessin M, Tonnelo J, Agbossou A (2005) Rockfall impact on reinforced concrete slab: an experimental approach. Int J Impact Eng 31(2):169–183
Schellenberg K, Vogel T (2009) A dynamic design method for rockfall protection galleries. Struct Eng Int 19(3):321–326
Yong ACY (2019) Impact-resistance of reinforced concrete structures [Ph.D. thesis]. http://hdl.handle.net/11343/223008
Yoshida H, Nomura T, Wyllie DC, Morris AJ (eds) (2007) Rockfall sheds—application of Japanese designs in North America. In: Proceedings of the 1st North American landslide conference: landslides/slope Instability AEG special publication: conference presentations
Majeed ZZA, Lam NTK, Lam C, Gad E, Kwan JSH (2019) Contact force generated by impact of boulder on concrete surface. Int J Impact Eng, 103324 (in press)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Majeed, Z.Z.A., Yong, A.C.Y., Perera, J.S., Lam, N.T.K., Menegon, S.J., Gad, E. (2020). Contact Force Generated by Impact of Boulder on Concrete Barriers. In: Wang, C., Ho, J., Kitipornchai, S. (eds) ACMSM25. Lecture Notes in Civil Engineering, vol 37. Springer, Singapore. https://doi.org/10.1007/978-981-13-7603-0_50
Download citation
DOI: https://doi.org/10.1007/978-981-13-7603-0_50
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-7602-3
Online ISBN: 978-981-13-7603-0
eBook Packages: EngineeringEngineering (R0)