Rockfall barriers are essential for minimizing the hazard due to rockfall and debris flow. They help to increase the resilience of infrastructure and residential areas in mountainous regions and hence act as protective structures. The present study investigates the response of rigid rockfall barriers against impact, focusing on the influence of foundation geometry and base slab thickness. Finite element simulations were conducted to analyze the behaviour of five distinct foundation configurations: Rockfall Barrier with No Anchor (RBNA), Front Single Anchor (RBFA), Rear Single Anchor (RBRA), Double Anchor (RBDA), and Double-side Circular Anchor (RBDCA). The rockfall impact was considered normal to the barrier to maximise the impact energy. The foundation soil was modelled using the Mohr-Coulomb plasticity model. The reinforced concrete behaviour was incorporated using the Concrete Damaged Plasticity (CDP) model, while the steel reinforcement was represented by the Johnson-Cook model. Results indicate that the RBDA configuration offers superior stability, over other variations. Additionally, increasing the base slab thickness inversely affects both settlement and displacement, enhancing the barrier’s resilience. Cross-comparison reveals that while RBDA provides notable improvements, optimizing base slab thickness in RBNA can achieve comparable or superior performance, contingent upon soil bearing capacity. These findings provide actionable insights for the design and implementation of effective rockfall mitigation systems.
AbbruzzeseJMLabiouseV (2014) New Cadanav methodology for quantitative rock fall hazard assessment and zoning at the local scale. Landslides11(4): 551–564. DOI: 10.1007/s10346-013-0411-7.
2.
AndrewRDBartingaleRHumeH (2011) Context sensitive rock slope design solutions (FHWA-CFL/TD-11-002). Federal Highway Administration, Central Federal Lands Highway Division. https://www.cflhd.gov
3.
BhowmikDBaidyaDKDasguptaSP (2013) A numerical and experimental study of hollow steel pile in layered soil subjected to lateral dynamic loading. Soil Dynamics and Earthquake Engineering53: 119–129. DOI: 10.1016/j.soildyn.2013.06.011.
4.
BhowmikDBaidyaDKDasguptaSP (2016) A numerical and experimental study of hollow steel pile in layered soil subjected to vertical dynamic loading. Soil Dynamics and Earthquake Engineering85: 161–165. DOI: 10.1016/j.soildyn.2016.03.017.
5.
Bureau of Indian Standards (2000) IS 456:2000 – Plain and reinforced concrete – Code of practice.Bureau of Indian Standards.
6.
ChenJWeiXHuangJ, et al. (2025) Numerical evaluation of a new high pressure water jet interference method for bridge pier protection against vessel collision. Acta Mechanica Sinica41(1): 324069. DOI: 10.1007/s10409-024-24069-x.
7.
CorominasJvan WestenCFrattiniP, et al. (2014) Recommendations for the quantitative analysis of landslide risk. Bulletin of Engineering Geology and the Environment73(2): 209–263. DOI: 10.1007/s10064-013-0538-8.
8.
Dass GoelMMatsagarVAGuptaAK (2011) Dynamic response of stiffened plates under air blast. International Journal of Protective Structure.
FarrokhzadFAzarianZChoobbastiAJ, et al. (2025) The effect of blast loading on the behavior of shallow tunnels. Transportation Infrastructure Geotechnology12(1): 10. DOI: 10.1007/s40515-024-00487-3.
11.
HafezolghoraniMHejaziFVagheiR, et al. (2017) Simplified damage plasticity model for concrete. Structural Engineering International27(1): 68–78. DOI: 10.2749/101686616X1081.
12.
HualiPAkbarMArshidMU, et al. (2025) Seismic resilience of geogrid reinforced concrete earth-retaining wall of various incremental panels based on physical and numerical modelling. Structures71: 107901. DOI: 10.1016/j.istruc.2024.107901.
13.
IlleditschMPrehA (2024) Determination of meaningful block sizes for rockfall modelling. Natural Hazards120(6): 5685–5710. DOI: 10.1007/s11069-024-06432-4.
14.
IqbalMASadiqueMRBhargavaP, et al. (2014) Damage assessment of nuclear containment against aircraft crash. Nuclear Engineering and Design278: 586–600. DOI: 10.1016/j.nucengdes.2014.07.040.
15.
KondaiahVVSameer KumarDVasantha RaoN, et al. (2021) Estimation of johnson-cook constitutive model constants from Sheppard and Jockson model. IOP Conference Series: Materials Science and Engineering1185(1): 012033. DOI: 10.1088/1757-899x/1185/1/012033.
16.
KoramatiSMajumdarBBSahuPK, et al. (2024) A road safety evaluation framework using roadway influencing parameters at urban road sections. Transportation in Developing Economies10(2): 26. DOI: 10.1007/s40890-024-00212-2.
17.
LambertSNicotFGottelandP (2015) Kinematic response of an impacted rockfall protection embankment. In Engineering Geology for Society and Territory - Volume 2: Landslide Processes. Berlin: Springer International Publishing, 1855–1858. DOI: 10.1007/978-3-319-09057-3_328.
18.
LeeJFenvesGLMember (1998) Plastic-damage model for cyclic loading of concrete structures. Journal of Engineering Mechanics. DOI: 10.1061/(ASCE)0733-9399(1998)124:8(892).
19.
LublinerJOllerSAOSO%ateE (1988) A plastic-damage model for concrete. International Journal of Solids and Structures. DOI: 10.1016/0020-7683(89)90050-4.
20.
MajeedZZALamNTKLamC, et al. (2019) Contact force generated by impact of boulder on concrete surface. International Journal of Impact Engineering132: 103324. DOI: 10.1016/j.ijimpeng.2019.103324.
21.
Morales-EstebanAJustoJLCastilloPKarabulutM. (2024) Dynamic analysis of the almagrera tailings dam with dry closure condition. Sustainability16(4): 1607. DOI: 10.3390/su16041607.
22.
MouginJPPerrotinPMommessinM, et al. (2005) Rock fall impact on reinforced concrete slab: an experimental approach. International Journal of Impact Engineering31(2): 169–183. DOI: 10.1016/j.ijimpeng.2003.11.005.
23.
NewZealand Geotechnical Society (2016) Rockfall: design considerations for passive protection structures. Wellington: NewZealand Geotechnical Society. https://www.building.govt.nz
24.
PimpinellaFMarchelliMDe BiagiV (2024) A weight-based efficiency measure for energy dissipating devices for flexible rockfall barriers. International Journal of Protective Structures. DOI: 10.1177/20414196241299126.
SunJLiangCYuT (2024) Analytical assessment of dynamic stability in 2D unsaturated soil slopes reinforced with piles. Archives of Civil and Mechanical Engineering25(1): 22. DOI: 10.1007/s43452-024-01060-y.
27.
TiwariRChakrabortyTMatsagarV (2017) Dynamic analysis of tunnel in soil subjected to internal blast loading. Geotechnical & Geological Engineering35(4): 1491–1512. DOI: 10.1007/s10706-017-0189-9.
28.
TorselloGValleroGCastelliM (2021) The role of block shape and slenderness in the preliminary estimation of rockfall propagation. IOP Conference Series: Earth and Environmental Science833(1): 012177. DOI: 10.1088/1755-1315/833/1/012177.
29.
TrojnarK (2020) Numerical analysis of the landslide geohazards - case study with gabions and piles solutions. In Proceedings of CEE 2019, Advances in Resource-saving Technologies and Materials in Civil and Environmental Engineering. Berlin: Springer, 474–479. DOI: 10.1007/978-3-030-27011-7_60.
30.
VignaSMarchelliMDe BiagiV, et al. (2023) Numerical simulation of rockfall protection embankments in natural soil. Geosciences13(12): 368. DOI: 10.3390/geosciences13120368.
31.
VolkweinASchellenbergKLabiouseV, et al. (2011a) Rockfall characterisation and structural protection - a review. Natural Hazards and Earth System Sciences11(9): 2617–2651. DOI: 10.5194/nhess-11-2617-2011.
32.
XiaoLLuLLiL, et al. (2024) Effects of rockfall shape on deformation performance of ground reinforced embankments subjected to lateral impact. Geotextiles and Geomembranes52(5): 841–859. DOI: 10.1016/j.geotexmem.2024.04.009.
33.
ZhangCYanQZhangY, et al. (2023) Intelligent monitoring of concrete-rock interface debonding via ultrasonic measurement integrated with convolutional neural network. Construction and Building Materials400: 131865. DOI: 10.1016/j.conbuildmat.2023.131865.
