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The Challenge

During the project, a severe rockfall hazard was identified along the Bts. Bandung/Cianjur – Naringgul Cidaun Road. The heavily weathered conditions of the surrounding rock slopes posed a direct threat to the lives of road users.

The project required a robust solution capable of mitigating this hazard. Engineers calculated that the chosen protection system needed to withstand massive impacts, specifically an estimated rockfall mass of 10 tons falling from a height of 30 meters, with a volume of 4 square meters.

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The Maccaferri Solution

To meet these extreme safety requirements and safely dissipate the immense forces of falling rocks, Maccaferri Indonesia deployed its Dynamic Barriers. Specifically, the RB 3000 rockfall barrier was selected and installed at the site.

Maccaferri provided comprehensive end-to-end support throughout the project, starting from technical recommendations to manufacturing, material supply, and on-site product assistance during the construction phase.

Key Features of the Installed System:

• Specialized Braking: A special brake system is integrated into the barrier to absorb most of the energy from the rockfall.
• High Energy Capacity: The RB 3000 barrier is engineered to dissipate the kinetic energy of falling rocks up to 3,000 kJ.
• Scale and Coverage: The installed system stands 6 meters high and spans a total length of 25 meters, utilizing 150 square meters of material.
• Dual-Mesh Interception: The bulk of the system’s strength is provided by strong ring nets, which are combined with double-twisted steel wires featuring smaller openings to effectively catch smaller rocks and debris.
• Advanced Corrosion Protection: To ensure a long design life, both the ring nets and the steel wires are coated with Galfan (ZnAl5% – Class A).
• Heavy-Duty Anchoring: To withstand large energy impacts, the barrier is firmly held in place with an array of steel posts, T-FAST (Rope Anchors), and concrete foundations.

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Project Highlights:

Location: Naringgul, West Java

Year of Implementation: 2020

Solution: Rockfall Protection System

Product: Rockfall Barrier (RB 3000)

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A Proven Partner for Rockfall Mitigation

Working with Maccaferri Indonesia means partnering with a team that understands both the technical and practical sides of rockfall mitigation. Our approach is built around:

• Rockfall protection systems that are fully tested and certified to international standards
• Solutions developed through our technical support to suit Indonesian terrain, climate, and construction realities
• A complete range of active and passive mitigation options
• Long-term performance, safety, and asset protection as core design objectives

To learn more about our rockfall solutions and applications, download our brochure ⬇️