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All Journal Jurnal Geocelebes Journal of Geoscience, Engineering, Environment, and Technology PROMINE KURVATEK International Journal of Hydrological and Environmental for Sustainability Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan JURNAL TEKNOLOGI MINERAL FT UNMUL
Novandri Kusuma Wardana
Institut Teknologi Nasional Yogyakarta
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation

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Journal : PROMINE

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Aplikasi Uji Kuat Geser Dalam Remediasi Lereng Tambang Aspal Di PT Karunia Alam Indonesia Kec. Lasalimu Kab. Buton, Provinsi Sulawesi Tenggara Novandri Kusuma Wardana
PROMINE Vol 5 No 1 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1499.559 KB) | DOI: 10.33019/promine.v5i1.114

Abstract

Mining activities iscommonlyto work with the problem of deformation or rock movement, this is causingthe shift of rock mass and generated in the occurrence of landslides activity. Slope Stability Analysisrequired that the slope in stable condition. Therefore, stable bench is needed to prevent failure benchthat bring about interference either tool traffic or loading material during production process. Testing ofUCS value is done on 6 lithology that is on asphalt lithology, mudstone, siltstone, sandstone andclaystone. Based on the results of laboratory testing show that value of cohesion and friction angle togenerate by using Generalized Hoek Brown Failure Criterion method.The values of cohesion andfriction angle in asphalt are 0.080712 MPa and 26.3176 º. Asphalt Rock Mass Strength Value is0.145453 MPa. The values of cohesion and friction angle in mudstone are 0.075424 MPa and17.4773º. Rock Mass Value The mudstone rock is 0.220617 MPa. The values of cohesion and frictionangle in siltstone are 0,105107 MPa and 28,2864º. Rock Mass Strength siltstone rock is 0.311426MPa. The values of cohesion and friction angle in the sandstone are 0.180389 MPa And 38.9621º.Rock mass strength sandstone rock is 0.739092 MPa. The values of cohesion and friction angle insiltstone are 0.180389 MPa And 38.9621º. The Power of Mass The siltstone rock is 0.739092MPa.The values of cohesion and friction angle in mudstone are 0.180389 MPa And 38.9621º. RockMass Strength value The mudstone rock is 0.739092 MPa. Given that in Geological Strength Indexmethod only qualitative data will be more accurate using RMR method so it can get quantitative data.
Analisis Kestabilan Lereng Berdasarkan Kekuatan Geser Massa Batuan Terhadap Perubahan Kandungan Air Pada Tambang Batubara Di Area Blok Menyango Novandri Kusuma Wardana
PROMINE Vol 7 No 2 (2019): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v7i2.1645

Abstract

Mining activities is commonly to work with the problem of stability of rock mass, then befordesaining mine’s slope should know rock shear strength parameters, such as cohesion (c) andinternal friction angle value ( . Beside those parameters, also needed to know the impact ofwater content to the rocks. The water content will effect rock’s shear strength, proof by the rockcondition which is ductile when it is dry and soft when it is wet. Based on test results was doneusing sandstone with laboratory scale of direct shear test were analyzed using mohr – coulomband patton criteria (1966). It is known that the cohesion (c) of sandstone decreased from 510,35kPa at natural condition down to 133,75 kPa at wet condition. The internal friction angle ( ) alsodecreased from 54,56° at natural condition down to 48,45° at wet condition. The reduction of theshear strength is caused by fragments and clay minerals characteristics which are so reactiveand very easy to absorb water so that the cohesion of the sandstone reduce the active normalstress so that working the shear stress required to cause the shear failure becomeweaker. From the results, it is also known that the shear surface roughness had a lot ofinfluence on the shear strength the normal stresses applied on the direct shear tests werevery low under 20% of UCS.
Analisis Rekah Tarik Lereng Sidewall Penambangan Blok Menyango Berdasarkan Reliabilitas Kemantapan Lereng Menggunakan Metode Finite Difference Novandri Kusuma Wardana
PROMINE Vol 8 No 2 (2020): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v8i2.2142

Abstract

Probability analysis is method in geotechnical parameter to solve problem on the stability of the mining slope. It explains values of distribution parameters based on data type of laboratory test results and field investigations result as a back analysis of the mining slope. Sidewall slopes had sliding plane due to tension crack as wide as 18 cm with a length of 150 meters had potential failure, so back analysis of slope stability is needed. Condition of uncertainty the rock of the slope when the increase saturation level 23% so that it gives a greater water pore pressure. Slopes with a geometry of sidewall 10 m high and a single slope angle of 50 ° require redesign of a height of 7 meters and a single slope angle of 42 °. The results of FK calculations obtained for the IRA slope were 1.24 with a probability of failure of 23.12% and the overall slope with FK 1.31 with a probability of failure of 18.27%. The results of the distribution of random variables using Chi - Square obtained Normal and Lognormal distributions for sandstones, Normal and Exponential distribution for claystone, and Lognormal distribution for siltstone.
Co-Authors A.A Inung Arie Adnyano, A.A Inung Arie Agustian, Wewen Agustinus Isjudarto Anggi Hermawan Avellyn Shinthya Sari Bayurohman Pangacella Putra Bram Lanjaya Bungalan, Elsy Thiansy Demanson Ornansah Sinaga Dian Eka Aryanti Erry Sumarjono Fadilah Gilang Prasetyo Faisol Mukarom Hery Widijanto Jannah, Salsabila Raudlotul Junior, Prince Robert Lase, Agus Sudarman Mahardika, Yudi Mataheru, Juan Aknes Muhammad Bahtiyar Rosyadi Pangestu, Wahyu Yudha Partama Misdiyanta Purnoma, Hendro Putri Nadya, Adinda R. Andy Erwin Wijaya Rizqi Prastowo Rochsyid Anggara Sarastika, Ristya Mahda Supandi Tarumasely, Nofry Hence Trynovianti Putri Malik Veno Sholitha Yudi Yudi Dwi Kurniawan