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All Journal Prosiding Seminar Nasional Sains dan Teknologi Terapan Journal of Earth and Marine Technology (JEMT)
Rinaldhie Guntur Dharmansyah
Institut Teknologi ADhi Tama Surabaya
Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Energy Physics Transportation

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PREDIKSI MODULUS DEFORMASI BATUAN MENGGUNAKAN MODULUS ELASTISITAS BATUAN PADA BATU GAMPING Rinaldhie Guntur Dharmansyah; Cahyadi Kamal Hidayatulloh; Regita Cahyani Samal; Dhymas Wahyu Tri Saputra; Andyel Chaeza Adya Enggiarta; Yudho Dwi Galih Cahyono
Prosiding Seminar Nasional Sains dan Teknologi Terapan 2021: Peluang dan Tantangan Peningkatan Riset dan Teknologi di Era Pasca Covid-19
Publisher : Institut Teknologi Adhi Tama Surabaya

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Abstract

Modulus Elastisitas adalah pengujian pada batuan untuk mengetahui deformasi suatu batuan dan batas bagaimana suatu sampel batuan tersebut bisa bertahan dalam elastisitasnya. Dimana UCS dilakukan dengan menguji sampel batuan  menggunakan uji tekan dari satu arah. Penelitian ini bertujuan untuk menganalisis nilai modulus elastisitas serta modulus defrmasi dan untuk mengetahui sifat sampel batuan tersebut. Penelitian ini menggunakan metode kuantitatif, yang dilakukan dengan melakukan perhitungan pada uji kuat tekan uniaksial untuk mendapatkan nilai modulus elastisitasnya. Pengujian ini dilakukan terhadap masing-masing tiga sampel batu gamping dengan ukuran L = 2D. Diprediksi Hasil pengujian menunjukkan nilai modulus elastisitasnya sebesar 62.3 GPa (Sampel 2A) 15.2 GPa (Sampel 2B), 22.8 GPa (sampel 2C). Sehingga didapatkan nilai rata-rata modulus elastisitasnya sebesar 3.43GPa. Kemudian diprediksi nilai moulus deformasinya sebesar 0.029 GPa (sampel 2A), 0.107 GPa (sampel 2B), 0.085 GPa (sampel 2C) dan rata rata nilai modulus deformasi sebesar 0.074 Gpa
Geotechnical Planning for Slope Stability in Limestone Mining at PT Rahmad Makmur Abadi, Punggulrejo Village, Rengel District, Tuban Regency Yudho Dwi Galih Cahyono; Alifer Zalfani Ardiansyah; Rinaldhie Guntur Dharmansyah; Avellyn Shinthya Sari; Gilberto Amaral
Journal of Earth and Marine Technology (JEMT) Vol 6, No 2 (2026)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2026.v6i2.8713

Abstract

This study focuses on optimal slope-geometry planning in the IUP area of Rahmad Makmur Abadi Ltd, Punggulrejo Village, Rengel District, Tuban Regency, to create a safe working environment and maximize material recovery. Slope stability is evaluated by analyzing the Factor of Safety (FoS ≥ 1.2) using the finite element method based on the Hoek–Brown failure criterion, as well as the Probability of Slope Failure (PF ≤ 10%) using Rosenblueth’s Point Estimate Method under the weakest slope conditions (saturated, with minimum UCS value), in accordance with KEPMEN ESDM No. 1827/K/30/MEM/2018. Through iterative geometric modeling (trial and error), the study produced recommendations for a single slope geometry (bench height of 20 m, width of 6 m, at a 90° inclination). It divided the overall slope into two blocks: Block 1 (bench height of 8 m, width of 4 m, at an 85° inclination with 9 benches, with the lowest bench at 7 m) and Block 2 (bench height of 8 m, width of 5 m, at an 85° inclination with 8 benches, with the lowest bench at 6 m). Rock mass quality analysis using Rock Mass Rating (RMR = 78) and Geological Strength Index (GSI = 73), along with Uniaxial Compressive Strength (UCS  40 MPa) tests, supports the recommended mining excavation methods—drill blast for optimizing productivity or the use of a breaker for cost savings.
Co-Authors Alifer Zalfani Ardiansyah Andyel Chaeza Adya Enggiarta Avellyn Shinthya Sari Cahyadi Kamal Hidayatulloh Dhymas Wahyu Tri Saputra Gilberto Amaral Regita Cahyani Samal Yudho Dwi Galih Cahyono