Analisis Kemiringan Tumpukan Material Belerang pada Area Open Storage PT. PKG Menggunakan Metode Natural Angle Of Repose

Rizqi Dimas Al’faiz; Akhmad Andi Saputra; Bana Evardius

doi:10.53863/kst.v8i02.2376

Penulis

Rizqi Dimas Al’faiz Universitas Gresik, Gresik, Indonesia
Akhmad Andi Saputra Universitas Gresik, Gresik, Indonesia
Bana Evardius Universitas Gresik, Gresik, Indonesia

DOI:

https://doi.org/10.53863/kst.v8i02.2376

Kata Kunci:

natural angle of respose, sudut kemiringan aktual, timbunan belerang

Abstrak

Penyimpanan material belerang di area open storage memerlukan pengendalian kemiringan timbunan untuk menjaga kestabilan dan keselamatan operasional. Penelitian ini bertujuan untuk menganalisis nilai Natural Angle of Repose (AOR), mengevaluasi kesesuaian kemiringan aktual, mengidentifikasi faktor-faktor yang memengaruhi sudut kemiringan, serta menilai kestabilan timbunan material belerang di PT. PKG. Penelitian menggunakan metode experimental dengan analisa kuantititatif melalui pengukuran tinggi dan jari-jari alas timbunan, kemudian sudut kemiringan dihitung menggunakan persamaan dan dianalisis dengan regresi linier. Hasil penelitian menunjukkan nilai Natural Angle of Repose berkisar antara 37,80°–40,89° dengan rata-rata 39,29°. Regresi linier menunjukkan bahwa tinggi timbunan, ukuran partikel, dan kelembapan meningkatkan sudut kemiringan, sedangkan jari-jari alas menurunkan sudut kemiringan. Berdasarkan klasifikasi kestabilan, empat sampel termasuk kurang stabil dan dua sampel termasuk tidak stabil. Penelitian ini menyimpulkan bahwa kestabilan timbunan material belerang dipengaruhi oleh dimensi timbunan dan karakteristik material. Hasil penelitian dapat menjadi dasar dalam pengendalian sudut kemiringan timbunan agar risiko longsoran di area open storage dapat diminimalkan.

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