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Sari Melati, Sari
Program Studi Teknik Pertambangan, Fakultas Teknik Universitas Lambung Mangkurat Jl. Jend. Ach. Yani KM 36, Banjarbaru, Kalimantan Selatan, 70714
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Mathematics Physics

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Journal : INTAN Jurnal Penelitian Tambang

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APPROACH FOR ESTIMATING COHESION AND ANGLE OF INTERNAL FRICTION USING UNIAXIAL COMPRESSIVE AND TENSILE STRENGTH VALUES OF ROCKS Melati, Sari; Hakim, Romla Noor; Santoso, Santoso; Arief, Muhammad Zaini
INTAN Jurnal Penelitian Tambang Vol. 8 No. 2 (2025): INTAN: Jurnal Penelitian Tambang
Publisher : Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v8i2.315

Abstract

Rock characteristics, such as failure criteria, play a critical role in the assessment of stability in rock engineering, alongside design factors. Stability in rock engineering is cohesion (c) and friction angle (j) are parameters of failure criteria obtained by performing direct shear test or triaxial test. However, the measurements require a certain number of intact rock samples.  On the restricted condition or preliminary study, an approach involves for predicting both parameters. Using data statistical analysis of Uniaxial Compressive Strength (sc) and Brazilian Tensile Strength (st) of limestone and gypsum, empirical equations to predict c dan j were resulted in this research. Cohesion is strongly determined by st with average constants in equations: c = 1.81st dan c = 1.84st, for limestone and gypsum. Cohesion of limestone depends on sc with average constant in equation: c = 0.22sc. Friction angle and rock strength ratio (sc/st) are related by exponential equations: c/st = 2.1624e0.0314j dan sc/st = 3.6936e0.0183j, for limestone and gypsum, respectively. This approach using constructed empirical equations provides the prediction of c and j that relevant with theoretical values, indicated by 2.8% and 8.22% relative deviations. These empirical equations are useful for predicting the values ​​of c and j.
Co-Authors Abdul Hakim Adip Mustofa Afif Irfandy Afriko Afriko Agus Triantoro Ali Akbar Velayati Andreas Sibarani Annisa Annisa Arief, Muhammad Zaini Audy Dhata Ramadhani Christian Londong David P. Sahara Eko Santoso Ganda M. Simangunsong Gerry Alfrits Yizreel Kawalo Hajar Bintara Hakim, Romla Noor Jaka Guruh Wicaksono Lofty Rinaldi Sirnipson Marselinus Untung Dwiatmoko Misradin Misradin Moh Suhudi Muhammad Effendy Saputra Muhammad Fiqri Ramadhan Muhammad Mustakim Norfikriatul Hasanah Nurhakim Nurhakim Ridho K. Wattimena Rismailina Erliani Riswan Romla Noor Hakim Romla Noor Noor Hakim SANTOSO SANTOSO Tommy Trides Triono Ilham Mardana Uyu Saismana Wahyu Hidayat