Garuda - Garba Rujukan Digital

p-Index From 2020 - 2025

5.017

P-Index

This Author published in this journals

All Journal Journals Mining Engineering : Bina Tambang Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri

Bambang Heriyadi

Universitas Negeri Padang

Author-ID : 2720236

Computer Science & IT Earth & Planetary Sciences Engineering Industrial & Manufacturing Engineering

Published : 73 Documents Claim Missing Document

Claim Missing Document

Articles

4 5 6 7 8

Analisis Balik Kestabilan Lereng Tambang Batubara Pit RTS-C Sisi Barat WUP Roto-Samurangau PT. Kideco Jaya Agung, Kecamatan Batu Sopang, Kabupaten Paser, Provinsi Kalimantan Timur Bagas Maulana Hasan; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 5, No 1 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. PT Kideco Jaya Agung is a company engaged in coal mining business located in Paser Regency, East Kalimantan Province. The mining system is carried out using an open pit mining system. The RTS-C pit has a crack in the high wall area of the west side of section A at an elevation of 100 m /L, on the crest overall slope of section B there is a pond with a distance of 200 meters. Slope stability analysis is performed using the limit equilibrium method (bishop simplified method) and monte carlo probabilistic analysis. The results of the actual topographical analysis of Section A obtained values of SF 1.661 and PF 0.000%, the results of analysis in design of 2019 were SF 0.995 and PF 54.100%. The results of the actual topographical analysis of Section B obtained values of SF 1.351 and PF 0.000%, the results of analysis in design of 2019 were SF 0.926 and PF 92.100%. The values of material properties in the back analysis were c and ∅ are at 60% of the original condition (peak), mudstone material values of c = 79.2 kPa and ∅ = 16.11° for sandstone material values of c = 87.6 kPa and ∅ = 17.37 °.Keywords: Back analysis, slope stability, crack, bishop, monte carlo

ANALISIS STABILITAS LERENG DALAM PENENTUAN BATAS PENAMBANGAN PADA ZONA 4 TAMBANG ANDESIT PT. BINTANG SUMATERA PASIFIC, KECAMATAN PANGKALAN KOTO BARU, KABUPATEN 50 KOTA, SUMATERA BARAT Reno Putra; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 5, No 5 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v5i5.110300

Abstract. The weak areas that affect slope stability at PT. Bintang Sumatera Pacific. Slope safety factors at the mining location must be considered because of mining activities carried out on these slopes. Slope geometry with upper slope 10.31m and 20.88m down slope with 37.14m width and 82 ° slope. The slope stability analysis used is the general limit equilibrium method. As a result of the research, the following conclusions were drawn. Analysis of rock mass characteristics based on RQD and RMR analysis with rock types at the study location classified in class II on both slopes. Second, the type of landslide potential at the research location is direct toppling of 39.13% on the upper slopes and 29.91% on the lower slopes. Third, the results of the actual slope analysis as a whole obtained the value of FK = 3.478 (natural conditions) and FK = 2.684 (saturated conditions). Fourth, to obtain the final geometry of the safe slope, the geometric simulation of the slope is carried out by reducing the height of the lower slope based on the blasting depth by 6m. From the three simulations carried out, the final geometry of the safe slope is obtained, namely the slope height of 31.19m and slope of 82 °.The overall FK obtained in saturated conditions was 1.535 in safe conditions. Keywords: Slope Stability Analysis, RQD, RMR, General Limit Equilibrium, Direct Toppling

Slope stability analysis at Pit AI-Block B PT. Anugerah Alam Andalas Muara Ketalo Village, Sungai Bengkal, Tebo Ilir Subdistrict, Tebo District, Jambi Province Dasri Husien; Bambang Heriyadi; Yoszi Mingsi Anaperta
Journals Mining Engineering : Bina Tambang Vol 3, No 1 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Slope stability was not currently analysed into mining production at company. Bishop Simplified and Janbu Simplified will be applied to the slopes.Data bases are Top Soil: Unit Wight (γ)= 20,36 kN/m3, Cohesion (c') =26,38 kN/m2 and angle of repose (ϕ') = 25,5°.Sands: Unit Wight (γ) = 22,19 kN/m3, Cohesion (c') = 28,14 kN/m2 and angle of repose (ϕ') = 33,3°. Clay: Unit Wight (γ) =19,67 kN/m3, Cohesion (c') = 32,16 kN/m2 and angle of repose (ϕ') = 39,11°. Initial Slope height 22 metre and overall slope angles are 46°, Single Slope height I 5 metreand slope angle 48°, Single Slope Height II 17 metre and slope angle 55°.Geometrical slope recommendations are: 1. Bishop Simplified Method SF 0,892, slope is not safe. Reducing slope angle (46° to 30°) increasing II single slope to III single slope and height 6,115, 8,885, 7 metre, angels 30°,39°, 56°, berm I 4,221 metre berm II 4,601 metre, SF is now 1,338, slope is safe. 2. Janbu Simplified Method (saturated) SF 0,784, slope is not safe. Reducing slope angle (46° to 30°) and increasing II single slope to III single slope and height 6,115, 8,885, 7 metre, then angle 28°,32°, 56°, berm I 2,689 metre and berm II 4,601 meter, SF is1,337 and slope is safe.

Evaluasi Dan Rancangan Sistem Ventilasi Pada Tambang Batubara Bawah Tanah Lubang BT 02 PT. Nusa Alam Lestari, Kota Sawahlunto, Sumatera Barat. Carles Trisis Caniago; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 6, No 3 (2021): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v6i3.112557

PT. Nusa Alam Lestari is an underground coal mining company located in Batu Tanjung Village, Talawi District, Sawahlunto City, West Sumatra. This research aims to reveal the quality and quantity of air, reveal the maximum ventilation requirements that can be supplied by fans according to the currently installed specifications to channel fresh air to the front work and describe the current model of the ventilation system and the design of the future ventilation system according to changing field conditions in the hole. BT 02 PT Alam Nusa Lestari. From the results of temperature measurements in the BT 02 Utama (BT02U) 30.10c hole and the BT 02 Companion hole (BT02P) 280c. With an average humidity in BT02U which is 97.74% and in BT02P 89.0%. Based on Kepmen 1827 k / MEM / 30/2018 and KepDirJen Minerba of the Ministry of Energy and Mineral Resources Number 185.K / 37.04 / DJB / 2019. The specified temperature values are 180C-270C and a maximum relative humidity of 85%. From the calculation results, the air requirement in the BT02 U hole is 11,1165 m3 / s, the BT 02 P hole is 8,1166 m3 / s, and the air requirement to dilute methane gas from the BT 02 hole is 2,397 m3 / s, the oxygen content is 20.9% and It is in accordance with the air requirements for workers stipulated in the Ministerial Decree 1827. Dirty air resulting from mining activities is sucked out through the ventilation holes and replaced with clean air that enters through holes BT 02 U and BT 02 P that have been installed with blow blowers.

Analisis Penentuan Batas Aman Ground Vibration Akibat Kegiatan Peledakan Terhadap Kestabilan Lereng Highwall Penambangan Pit 13 West PT. Multi Harapan Utama, Samarinda, Kalimantan Timur Diky Canima; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 4, No 4 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. Blasting activity is an activity that aims to destroy the rock that is not able to diripping, but as a result of blasting activities will cause vibrations that disturb the surrounding environment including slope stability. After opsevation and processing the data it obtained the actual value of the safety factor (SF) in March at 2.204 dry conditions, the condition of half saturated 1,793 and 1.386 water saturated conditions. SF that influenced most Amaks ie 0.0267 g with the value of the safety factor under dry conditions 2.114; 1.716 half-saturated conditions; and 1.324 water saturated conditions. Next to find out the value determination of ground vibration safe limits due to blasting activities for slope stability, vibration testing was carried out with the result Amaks 0.398 g FK value of 1.279 in dry conditions with 2 meters, Amaks 0.216 g FK value 1.2284 half-saturated conditions with a distance of 4 meters, Amaks 0.0357 g value FK 1.303 saturated conditions with a distance of 6 meters. Furthermore, this value is used as a recommended value for vibration safe limits due to blasting of slope stability.

Analisis Kestabilan Lubang Bukaan dan Pillar saat Proses Mining Blok Development pada Penambangan Bawah Tanah Metoda Room and Pillar PT. Allied Indo Coal (AIC) Jaya Alfi Rahman; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 4, No 1 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. Determination of the mining geometry in the room and pillar underground mining method is a fairly complex job. This research was conducted by analyzing the stress on the coal pillar and the coal pillar strength to obtain its safety faktor. Stress determination on the pillars is calculated based on the theory of tributary area loading with the stress working on the pillars is 6.775 MPa. Meanwhile, the coal pillar strength is obtained using empirical equations with the pillar strength of 17.6 MPa. Thus, the pillar safety faktor based on analytical calculations is 2.62 (stable) with mining recovery around 40%. Rock mass characterization is carried out based on rock mass classification Rock Mass Rating (RMR) System. The value of the RMR for coal is 56, where this rock is included in class III rock with a stand up time recommendation for 580 hours and maximum span 6.5 m. Modeling using Phase2 shows the direction of stress transfer tends to be centered on the mining blok area with average mean stress 4.2 MPa and strength factor 2.53. Evaluation of mining geometry is obtained through simulation calculations for several pillar sizes with the results in the form of recommendations for the ideal pillar dimensions 7 m x 7 m with estimated recovery around 55% and safety faktor 1.53.Keywords: Pillar Dimensions, Tributary Area, Safety Faktor, Recovery, RMR System

Analisis Penyanggaan Berdasarkan Karakteristik Batuan Pada Atap dan Dinding Lubang Tambang Batubara Bawah Tanah BMK-04 di CV. Bara Mitra Kencana, Kecamatan Talawi, Sawahlunto Wahyu Eko Prasetianto; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Physical properties and mechanical properties of rocks will be needed for analyzed RMR-Bieniawski 1989. The data will then be needed for supporting calculations (Biron and Arioglu theory, 1983). Based on the results of soil mechanical laboratory test and rock mechanics obtained values of physical properties for claystone is an average water content value 3.46%, the average spesific grafity 2.42, and average density 1.54 grams/cm3. For sandstone the natural density 2.55 gr/cm3, the dry density 2.53 gr/cm3, the saturated density 2,69 gr/cm3, apperent SG 2,53, true SG 3, natural water content 0.73%, saturated water content 6.15%, degree of saturation of 11.93%, porosity 15.56%, and void ratio 0.18. For marlstone we get the natural density 2,83 gr/cm3, the dry density 2,77 gr/cm3, the saturated density 2,88 gr/cm3, apperent SG 2,77, true SG 3,14, natural water content 1.94%, saturated water content 3,86%, degree of saturation 57,09%, porosity 10,99%, and void ratio 0,13. For mechanical properties such as, compressive strength of claystone 1,25 MPa, sandstone 3,64 MPa, and marlstone 5,48 MPa. From the results of the Bieniawski-1989 RMR analysis, the rocks on the roof and wall tunnel BMK-04 has a value of RMR 56 and include to rock class III. RMR 56 have span value and stand up time 1 week to 5 m span. Based on the analysis using Biron and Arioglu theory in 1983 obtained the value of stress to the cap of 414.01 Kg/cm2, side post 369.91 Kg/cm2, and the distance between wedges of 5,52 cm.Keywords: Ground Support, Geotechnical, Rock characteristhics, Rock Mass properties (RMR-System), Underground mining.

Analisis Rancangan Lereng Disposal Area Pit D Pada PT. Aman Toebilah Putra Kabupaten Lahat Provinsi Sumatera Selatan Al Anhar Hardianto; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 4, No 2 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. PT. Aman Toebilah Putra is one of the coal mining companies located in Lahat Regency, South Sumatera. At this time PT. Aman Toebilah Putra is exploiting coal, and is doing mine out in mining area especially at Pit A location, and Pit C. The location to be used as overburden material shelter is Pit D, which will be examined the geometry design of the disposal slope.Slope stability analysis with Slide v.6.0 software and use janbu and bishop method (limit equilibrium) and Hoek and Bray Method. with geometric measurement data of the disposal slope in the field as well as laboratory test parameters namely weight of content, cohesion and internal shear angle. In addition, an evaluation was performed for the redesign of the geometry of the disposal slope and the design of the overburden material addition of the geometry of the disposal slope to obtain the value of the safety factor > 1,25 or in a safe and stable condition. Characteristics of lithologic mechanics in the disposal area of Pit D based on laboratory data obtained are known to have a weight value of 25.08 kN/m3 of soil content, cohesion: 15.9 kPa, and shear angle in 19,27°, so the design of the disposal area less safe and stable because the value of FK is less than <1,25. After the evaluation of the geometry of the disposal slope, the final disposal geometry design value is obtained: on the elevator 1 single slope 35°, 5 meters high, 6 meters wide bench.Keywords : Slope, geometry disposal, janbu and bishop method, Mining Software, Hoek and Bray Method.

RANCANGAN DAN PEMBUATAN ALAT SIMULASI SISTEM VENTILASI TAMBANG PADA LABORATORIUM UNTUK PEMBELAJARAN VENTILASI TAMBANG Bambang Heriyadi
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol 17, No 2 (2017): JURNAL SAINS DAN TEKNOLOGI
Publisher : Sekolah Tinggi Teknologi Industri Padang

Underground mine activities is not detached by mechanical ventilation system for supplying air demand for worker’s breathing, dirty air and toxic gases removing, dust reducing, and heat and humidity controlling. There for makes safer and enjoyable in working. To facility the study of mine ventilation in campus, the simulation study about mechanical underground mine ventilation system was applied. To do this research, the describtion about mechanical ventilation system of underground mine is necersary and also we need pay attention with the parameters in air qualities and quantities controlling witch are not over limit to the limit value (NAB). Describing how to control the air qualities and quantities, the writer got sample as well as PT. AICJ. PT.AICJ’s ventilation system is forcing system with some parameter like air velocity, wet and dry temperature, relative humidity, tunnel dimension, and around of gases concentration in air at mine front. Gases measured to wards the concentration of O2, CO2, CH4, and H2S. In this research, the writer designed and created a simulation of ventilation system, with autoCAD 2014 modeling advises. In the other hand the material that, used for equipment is iron plate 1 mm thickness. Volumetric air flow rate produced by forcing fan (18” diameter size) is 0.23m3/second with 260C effectively temperature. Medium air flow rate is 0.24m/second with is 25,30C effectively temperature. High air flow rate is 0,26m/second with 24,70C effectively temperature, while volumetric air flow rate of forcing fan 16” diameter size is o,26 m3/second with 24,40C effectively temperature, for exhaust fan (4”size) produced 0,18 m3/second volumetric air flow rate with 26,50C effectively temperature . so the simulation equipment ventilation can show measure result by quantity and quality airflow characteristic. Keywords: Ventilation Simulation Equipment, Air Quality, Air Quantity, Ventilation Pressure

Evaluasi dan Perancangan Sistem Ventilasi Pada Lubang Tambang Batubara BT 03 Site Bukit Tambun, PT. Nusa Alam Lestari, Desa Salak, Kecamatan Talawi, Kota Sawahlunto Naufal Deya Al Mafaza Mufti; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 7, No 1 (2022): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v7i1.117668

PT. Nusa Alam Lestari is an underground coal mining company located in Salak Village, Talawi District, Sawahlunto City, West Sumatra. Ventilation system on hole BT 03 PT. Nusa Alam Lestari uses a blowing system. This study aims to evaluate the quality and quantity of underground mining based on Ministerial Decree No. 555.K/26/M.PE/1995 with the parameters to be measured including the value of effective temperature, relative humidity, gas content, air requirements for tools, workers and equipment. gas control and measure the speed of the air flowing to get the value of the incoming air discharge. At hole BT 03 there are two forward fronts and six active mining branches. The results of the average temperature measurement on all working fronts of the BT 03 hole are 29.20C and the results of the average humidity measurement are 89.6%. This temperature value has passed the threshold set between 180C-270C and the humidity has also passed the set threshold of 85%. From the results of the calculation of the air quantity, it is also known that the incoming air has a discharge of 2.83 m3/s. In fact, the need for air which includes the need for air for workers, the need for equipment air, and the need for diluting methane gas is 5.0546 m3/s. Based on the situation the ventilation design for the future is to make a through hole from the C8 branch to the surface. In addition, it will also be equipped with a suction blower system. The simulation results using the Ventsim software stated that the intake air flow rate increased to 12.6 m3/s and has met the total air requirement standard. Furthermore, in the design of air ventilation for mining activities for the next 12 months, it is known that the total mining progress is 2345.3 m per year and the production target is 1334 tons per month. To meet the demand for air, a 20-inch centrifugal blower will be used in each hole A and B and 12 axial blowers will be used to help air reach the work front at each branch.

Co-Authors Abdullah, MT, Dr. Rijal Adree Octova Ahmad Ridho Permana Akman Syarif Al Anhar Hardianto Aldo Surya Pratama Alfi Rahman Andi Asmunandar Andre Gustian Anita Sari Sundriya Annisa Hanim D Annisa Oktavianingsih Ansosry Ansosry Aprilian Susanto Argi Saputra Ari Ardila Ari Febrianda Bafnis Ariq Jibran Azhary Rahim Bagas Maulana Hasan Berryl Hannah Carles Trisis Caniago Dasri Husien Dewi Suryani Dhoni Syaputra Diky Canima Fadhlur Rohman febri yanda praja Febrian Syukra Febylina Valencia Agustina Rumwaropen Fedi Fedi Fuzi Atiiqah Gary Aprio Gestio Sesar Yulindo Heri Prabowo Ilep Prengki Insani Sabilillah Jeremyes A.P Jualifa Pradisti Gayatri Jukepsa Andas Jukepsa Andas M Adli Fikri Muhammad Abbil Raihan Muhammad Deno Akbar Muhammad Fadillah Muhammad Irawan Multavich Multavich Mulya Gusman Murad Murad Naufal Deya Al Mafaza Mufti Nopi Kohirozi Noval Satria Novita Tria Putri Oktaviana Saputri Panji Kurnia Wiradani Rahmat Zulmy Refky Adi Nata Reno Putra Riki Rinaldo Riri Ferdian Rizaldi Rizaldi Rizka Sestiana Rizki Aldi Saputra Rizki Putri Bungo Rully Septian Sahmijar Sahmijar Sumarya Sumarya Suryadi Putra Syakinah Hasibuan Syarif Hidayattullah Teddi Triandana Tiwi Melisa Wahyu Eko Prasetianto Wahyu Kurniawan Wahyu Marta Novri Wahyudi Saputra Wuni Aprila Yolanda Noverista Yoszi Mingsi Anaperta Yudi Andrian Yunasril Yunasril Zet Rahmadanil Zhilal Darma

Title

Found 73 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 73 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 73 Documents
Search