{"id":82912,"date":"2025-11-17T14:44:02","date_gmt":"2025-11-17T13:44:02","guid":{"rendered":"https:\/\/www.maccaferri.com\/au\/success-stories\/tvi-balabag-gold-project-spillway\/"},"modified":"2026-02-02T13:02:39","modified_gmt":"2026-02-02T12:02:39","slug":"tvi-balabag-gold-project-spillway","status":"publish","type":"stories","link":"https:\/\/www.maccaferri.com\/au\/success-stories\/tvi-balabag-gold-project-spillway\/","title":{"rendered":"TVI BALABAG GOLD PROJECT SPILLWAY"},"content":{"rendered":"
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    Completed<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    TVI BALABAG GOLD PROJECT SPILLWAY_0<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    TVI BALABAG GOLD PROJECT SPILLWAY_1<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    TVI BALABAG GOLD PROJECT SPILLWAY_2<\/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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    TVI Resource Development (Phils.) Inc. operates a gold and silver mine in Sitio Balabag, Barangay Depore, Municipality of Bayog, Zamboanga del Sur, Philippines. A hydraulic spillway structure has been designed to support the excess runoff from the residual storage impoundment (RSI) earth dam of the mining company. A practical and economical design of the spillway was required that will dissipate the flow and reduce the water velocity downstream. Our integrated solution of Terramesh\u00ae System, reinforced with MacGrid Geogrids, and gabions were used to build the spillway structure. The back of the Terramesh\u00ae units were lined with MacTex\u00ae non-woven geotextiles. <\/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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    Maccaferri\u2019s gabions and Terramesh\u00ae units were used in the design. The Terramesh\u00ae units were mainly used for the construction of the drop structures and the side walls while the gabions were installed as lining of the bottom landings of the spillway and as termination of the walls. The Terramesh\u00ae System units were reinforced with MacGrid\u00ae geogrids, to provide the required tensile mechanical strength of the wall structure. The MacGrid\u00ae geogrids used have a tensile strength of 100 kN\/m. The cascading steps and landing portions were capped with concrete for abrasion protection. The top portion of the spillway measures 20m wide and succeeding drop heights vary from 3m to 5m. Both Terramesh\u00ae System and gabion units were filled with head-sized boulders which are available on site. MacTex\u00ae nonwoven geotextiles were also used to line the rear of the Terramesh\u00ae units with a 150 gsm non-woven geotextile (MacTex\u00ae MXL35) to prevent migration of the backfill to the spillway structure. The completed spillway structure has a low carbon footprint that services the requirement of the RSI as it naturally blends with the environment. Succeeding phases of the spillway will be constructed as the height of the RSI is increased. <\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>

    Used Products<\/h2>
    \"Gabions\"<\/div>
    Gabions<\/h6>A Wide Portfolio of Solutions Maccaferri offers an extensive range of tailored solutions to meet every specific need<\/span>View\n \n <\/a>
    star<\/span><\/div><\/div><\/div><\/div><\/div>
    \"TerraMesh\"<\/div>
    TerraMesh<\/h6>Maccaferri Terramesh\u00ae Family includes different facing options to build a Mechanically Stabilized Earth (MSE) structures and Reinforced Soil Sl<\/span>View\n \n <\/a>
    star<\/span><\/div><\/div><\/div><\/div><\/div>
    \"MonoAxial<\/div>
    MonoAxial GeoGrids<\/h6>Paragrid\u2122 WAn enhanced high performance knitted geogrid characterized by a very high modulus and the lowest reduction factors. Designed for<\/span>View\n \n <\/a>
    star<\/span><\/div><\/div><\/div><\/div><\/div>
    \"Nonwoven<\/div>
    Nonwoven Geotextiles<\/h6>Versatile Solutions for Separation, Filtration, and Protection Nonwoven geotextiles are flat textile structur<\/span>View\n \n <\/a>
    star<\/span><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

    Maccaferri\u2019s gabions and Terramesh\u00ae units were used in the design. The Terramesh\u00ae units were mainly used for the construction of the drop structur<\/p>\n","protected":false},"featured_media":80833,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-82912","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":[82661,82607,82625,82652],"applications":[80164,80164],"solutions":[80303],"sectors":[80126]},"yoast_head":"\nTVI BALABAG GOLD PROJECT SPILLWAY - Maccaferri Australia<\/title>\n<meta name=\"description\" content=\"Explore our Success Stories: TVI BALABAG GOLD PROJECT SPILLWAY. 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