{"id":137886,"date":"2026-02-03T11:28:21","date_gmt":"2026-02-03T10:28:21","guid":{"rendered":"https:\/\/www.maccaferri.com\/id\/success-stories\/rockfall-barrier-at-martabe-gold-mine-south-tapanuli-2\/"},"modified":"2026-02-03T11:28:21","modified_gmt":"2026-02-03T10:28:21","slug":"rockfall-barrier-at-martabe-gold-mine-south-tapanuli-2","status":"publish","type":"stories","link":"https:\/\/www.maccaferri.com\/id\/success-stories\/rockfall-barrier-at-martabe-gold-mine-south-tapanuli-2\/","title":{"rendered":"ROCKFALL BARRIER AT MARTABE GOLD MINE, SOUTH TAPANULI"},"content":{"rendered":"
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    ROCKFALL BARRIER AT MARTABE GOLD MINE, SOUTH TAPANULI_0<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    ROCKFALL BARRIER AT MARTABE GOLD MINE, SOUTH TAPANULI_1<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    ROCKFALL BARRIER AT MARTABE GOLD MINE, SOUTH TAPANULI_2<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    ROCKFALL BARRIER AT MARTABE GOLD MINE, SOUTH TAPANULI_3<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <\/div>\n <\/div>

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    Challenge<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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    The slopes at an open pit, Martabe Gold Mine \u2013 North Sumatera Province are composed of Fractured and Weathered massive quartz veins with the possibility of Rockfall that endanger the activities below. Martabe is located between the subduction in the west and active volcanism along the eastern side of Bukit Barisan. The slopes have an average angle of approximately 45 degrees and a total height of 90 m. A rockfall source was found at 30 – 60 m of height with diameters of 1 – 2 m. The selection of a proper material was necessary to provide an integrated and comprehensive solution. A Rockfall Mitigation Barrier 750 kJ by Maccaferri Indonesia was selected considering its ability to stop rockfall on the slope with the Service Energy Level (SEL) of 250 kJ and Maximum Energy Level (MEL) of 750 kJ. <\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Solution<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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    The Rockfall Mitigation Barrier by Maccaferri is certified on \u201cEOTA-EAD 340059-00-0106 – Falling Rock Protection Kits\u201d according to the dynamic impact test on a full-scale barrier sample following instructions provided in \u201cETAG 027 – Guideline for European Technical Approval of Falling Rock Protection Kits\u201d. The Rockfall Barrier 750 kJ has a length of 50m, a height of 3m, and net spacing of 10m. The Rockfall Mitigation Barrier 750 kJ was applied by using a combination of square mesh panels (300m x 300m) by Cable Net as interception netting and T-FAST as cable anchor to offer durability and high tensile resistance in demanding load and environmental conditions. The cables are coated in ZnAl5% class A (EN 10244-2, EN 10264-2), the anchor bars and shackles according to EN ISO 1461, fasteners (bolts and nuts) according to EN ISO 10684 and hot-dip galvanized or non-electrolytic zinc flake coated U-bolt wire rope grips. The Rockfall Mitigation Barrier was designed by considering the following requirements: \u2022 Risk Assessment such as Hazard, Vulnerability, Exposition, and Element at Risk; \u2022 Must be able to stop the movement of rockfall by Minimizing or Dissipating Kinetic Energy; \u2022 Must be able to stop the bouncing height of rockfall; \u2022 Must be able to accommodate Service Energy Level (SEL) and Maximum Energy Level (MEL). <\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>","protected":false},"excerpt":{"rendered":"

    The Rockfall Mitigation Barrier by Maccaferri is certified on \u201cEOTA-EAD 340059-00-0106 – Falling Rock Protection Kits\u201d according to the dynamic im<\/p>\n","protected":false},"featured_media":9454,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-137886","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":null,"applications":null,"solutions":null,"sectors":null},"yoast_head":"\nROCKFALL BARRIER AT MARTABE GOLD MINE, SOUTH TAPANULI - Maccaferri Indonesia<\/title>\n<meta name=\"description\" content=\"Explore our Success Stories: ROCKFALL BARRIER AT MARTABE GOLD MINE, SOUTH TAPANULI. 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