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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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Analysis of Ground Vibration Levels Due to the Blasting Process at PT. Bumi Suksesindo Tarumasely, Nofry Hence; Wardana, Novandri Kusuma; Prastowo, Rizqi
JURNAL GEOCELEBES Vol. 8 No. 1: April 2024
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v8i1.32853

Abstract

Ground vibration is one of the effects of the blasting process; when the ground vibration reaches the highest level, it will disturb comfort and even cause damage to the surrounding building structure. This research aims to determine the magnitude of ground vibrations in Pit A and Pit C, as well as determine the relationship between Peak Particle Velocity (PPV) and scaled Distance, and determine the maximum explosive charge weight per delay based on the SNI 7571: 2010 reference. Actual ground vibration measurement data during research based on PPV theory and the actual PPV power regression relationship with scaled distance was used to obtain a ground vibration prediction formula to be a reference for determining the amount of explosive filling per delay. The ground vibration produced in the blasting process is hoped not to exceed the safe threshold. Prediction of the ground vibration formula at 100 m to 1500 m according to the US Bureau of Mines where the Mean Squared Error (MSE) value is 0.54, the MSE value from the Langefors-Kihlstrom equation is 1.85 while the MSE value from the Ambersays-Hendorn equation is 0.31 with the slightest deviation is very good to use as a reference for predicting ground vibrations with the predicted PPV formula. Hence, the maximum explosive charge with a PPV limit of 2 mm/s is 2.452 kg, a PPV limit of 3 mm/s is 11.332 kg, and a PPV limit of 5 mm/s is 23.040 kg. The factors that influence ground vibration are the Distance from the blasting location to the measurement location and the maximum number of explosives per delay, so the results taken from this research are that blasting in Pit A and Pit C is still categorized as safe for infrastructure and community housing.
Analysis Of Aquifer Characteristics Using The Method Cooper Jacob At Block X Pt. Geomine Bara Studio Site Kutai Kartanegara, East Kalimantan, Indonesia Sari, Avellyn Shinthya; Wardana, Novandri Kusuma; Cahyono, Yudho Dwi Galih; Sarastika, Ristya Mahda
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 3 (2025): JGEET Vol 10 No 03 : September (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.3.19690

Abstract

Using the Cooper-Jacob method, this research analyzes the characteristics of the aquifer in Block X of Geomine Bara Studio Site Ltd., Kutai Kartanegara. This method can determine the main hydrogeological parameters, such as the aquifer's hydraulic conductivity/permeability coefficient, transmissivity, and storage coefficient (storativity) of the aquifer. Data from the pumping test served to understand the aquifer's response to pumping. The research results showed that the aquifer in Block X had a transmissivity of 193,9949 m²/day, hydraulic conductivity of 6,0634335 m/day, and a storage coefficient (storativity) of 0,000137. The soil type at the test location was fine sandy with a low porosity value of n = 0,499%, and the soil permeability was low at k = 0,056403975 mm/ sec. Groundwater in the study area had quite potential for meeting the needs of Geomine Bara Studio Site Ltd in Kutai, Kartanegara, with a groundwater availability of H219,398 m³ and a withdrawal rate of Q 182,0678 m³/day. This study indicated high water flow capacity with low storage ability, suggesting a confined aquifer. It benefits sustainable groundwater management and mitigates environmental impacts in the study area.
Comparative Analysis of Actual Conditions and Results of Technical Calculations Using Gumbell Method in Mine Dewatering System: A Case Study on Calculation of Rainfall and Runoff Water Discharge Wahyu Yudha Pangestu; A.A Inung Arie Adnyano; Novandri Kusuma Wardana
International Journal of Hydrological and Environmental for Sustainability Vol. 2 No. 2 (2023): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v2i2.231

Abstract

This research was conducted at PT. Antareja Mahada Makmur on the mining concession owned by PT. Multi Harapan Utama which is located in Sungai Payang Village, Loa Kulu District, Kutai Kartanegara Regency, East Kalimantan Province. The rainfall data used is for 10 years (2012-2021) which comes from the Dewatering Mining Engineering Department. Data analysis was performed by statistically calculating rainfall data using the Gumbell method to obtain the planned rainfall value. Then the calculation of runoff water discharge is carried out to analyze the existing mine drainage system by comparing the actual conditions and the results of technical calculations. Based on the results of the research for rainfall data for 2012 – 2021, Gumbell's calculations plan to collect rainfall of 94.23 mm/day, rainfall intensity of 14.74 mm/hour with a return period of 5 years and a hydrological risk of 89.26%. The total for the Gumbell method runoff discharge is obtained for runoff water entering the Sump 90 Besar of 2.19 m3/second, runoff water entering the Sump 90 Lorong of 3.03 m3/second, and for water discharge runoff that goes into Sump 100 is 3.68 m3/second. The three open channels in the form of trapezoids and culverts have met the theoretical calculation dimensions, with dimensions that are still able to accommodate and drain runoff water discharge. For three dimensions of the actual sump that is currently smaller than the theoretical calculation of the well volume, the sump capacity calculation obtained a recommended sump volume of 47,045 m3 for a 100 sump, for a sump 90 lorong of 43,012 m3, and for a sump 90 besar of 40,635 m3, with recommended dimension improvements. The operating speed of the pump needs to be increased for the Multiflow  MF - 420 pump on a sump 90 lorong from 1159 m3/hour to 1224 m3/hour with an efficiency of 65%, Multiflow  MF - 420 pump on a sump 90 besar from 1123 m3/hour to 1269 m3/hour with an efficiency of  70 %, for the Multiflow  MF - 420 pump at sump 100 from 1282 m3/hour to 1584 m3/hour with an efficiency of 65%.
Co-Authors A.A Inung Arie Adnyano 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 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 Wahyu Yudha Pangestu Yudi Yudi Dwi Kurniawan