2411-3336 2541-9404 Записки Горного института Journal of Mining Institute Санкт-Петербургский горный университет императрицы Екатерины ΙΙ Empress Catherine II Saint Petersburg Mining University 10.31897/PMI.2022.70 pmi-15868 https://pmi.spmi.ru/pmi/article/view/15868 Геотехнология и инженерная геология Geotechnical Engineering and Engineering Geology Alluvial tin mining by spray-suction borehole method: a case study on remaining alluvial tin reserves in Bangka Belitung, Indonesia Добыча россыпного олова методом распыления-всасывания из скважины: тематическое исследование оставшихся россыпных запасов олова в Бангка-Белитунг, Индонезия Ichwan Azwardi Азварди Ичван Ichwan Azwardi ichwanazwardi@gmail.com 0000-0003-0251-4702 Технологический институт Бандунга (Индонезия) Bandung Institute of Tecnology (Indonesia) Wibowo Aryo P. Вибово Арио П. Wibowo Aryo P. arwi@mining.itb.ac.id 0000-0001-7812-3164 Технологический институт Бандунга (Индонезия) Bandung Institute of Tecnology (Indonesia) Anggayana Komang Анггаяна Команг Anggayana Komang ichwanazwardi@gmail.com 0000-0002-6683-7124 Технологический институт Бандунга (Россия) Bandung Institute of Tecnology (Russia) Widodo Nuhindro P. Видодо Нухиндро Приагунг Widodo Nuhindro P. ichwanazwardi@gmail.com 0000-0001-7015-7845 Технологический институт Бандунга (Россия) Bandung Institute of Tecnology (Russia) 02 12 2022 2023 259 3 12 23 05 2022 21 07 2022 27 02 2023 © Azwardi Ichwan, Aryo P. Wibowo, Komang Anggayana, Nuhindro P. Widodo 2022 Ичван Азварди, Арио П. Вибово, Команг Анггаяна, Нухиндро Приагунг Видодо Azwardi Ichwan, Aryo P. Wibowo, Komang Anggayana, Nuhindro P. Widodo CC BY 4.0 https://pmi.spmi.ru/pmi/article/view/15868

Район островов Бангка-Белитунг, который является потенциальным районом россыпных месторождений олова в Индонезии, пострадал от уничтожения запасов олова на материке из-за бесконтрольной кустарной добычи, в результате которой остались небольшие запасы. Остатки этих запасов больше не могут быть добыты с использованием гидравлической разработки открытым способом из-за небольших размеров месторождений. Такие осадочные условия могут быть отработаны только скважинным методом. Целью этого исследования были разработка инструментов и проведение пробной добычи полезных ископаемых скважинным методом с распылительно-всасывающим механизмом. Определен способ и получены параметры разработки россыпных месторождений олова с использованием методов скважинной добычи, такие как мощность и радиус выемки, коэффициент извлечения полезных ископаемых и коэффициент разубоживания. Результаты этого исследования позволят увеличить количество наземных россыпных запасов олова для обеспечения его производства.

The area of the Bangka Belitung Islands, which is a potential area for alluvial tin deposits in Indonesia, has been affected by the destruction of tin reserves on the mainland due to rampant artisanal mining, which has left remnants of small-dimensional reserves. The remnants of these reserves can no longer be mined using the hydraulic mining of open pit method due to the small dimensions of the deposits. The hypothesis is that such sedimentary conditions can only be mined by the borehole method. This research aimed to design tools and perform test mining using the borehole method with a spray-suction mechanism. This research produced a novelty, namely, a method and parameters for alluvial tin deposits mining using borehole mining methods, such as the excavation capacity, excavation radius, mining recovery, and dilution factor. The benefit of this research is expected to provide an opportunity to increase the amount of onshore alluvial tin reserves to support tin production.

 Ключевые слова россыпное олово остатки малогабаритных запасов гидравлическая разработка скважинный метод распылительно-всасывающий Keywords alluvial tin remnants of small-dimensional reserves hydraulic mining borehole method spray-suction Авторы выражают благодарность PT. Timah Tbk во главе с директором Элвином Албаром,который предоставил доступ к объектам, руководителю разведки Сатьогрохо, инженерному персоналу, Сасри Роми и всем, кто помогал и поддерживал во время данного исследования. Авторы надеются, что это исследование станет полезным для горнодобывающей науки и техники, особенно для добычи россыпного олова. The authors would like to especially thank PT. Timah Tbk, including the Director, Alwin Albar, who provided access to facilities, Head of Exploration, Satyogroho, engineering staff, Sasri Romi, and all parties who helped and supported during this research. We hope that this research can be useful for mining science and technology, especially in alluvial tin mining. 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