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 · coal open pit mine slope. T A C. ahyadi. 1 L E 2Widodo R A Fajar3 A Baiquni4 1Lecturer of Mining Engineering Universitas Pembangunan Nasional Veteran Yogyakarta Indonesia Jalan SWK 104 Sleman 55283 Indonesia 2Lecturer of Mining Engineering ITB Bandung Indonesia Jalan Ganesha 10 Bandung 40132 Indonesia

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Proceedings In MiningGBV

 · Proceedings 26thInternationalConference onGround ControlIn Mining Editedby SydS. Peng WestVirginiaUniversity Morgantown WV USA ChristopherMark GerryFinflnger and SteveTadolini NIOSH-Pittsburgh Research LaboratoryPittsburgh PA USA A.WahabKhair KeithHeasley andYiLuo WestVirginiaUniversity Morgantown WV USA July 31-August2 2007 LakeviewScanticon

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Application of Coal Ash to Postmine Land for Prevention of

The increase in the number of coal-fired power plants with the increase in coal production and its consumption has caused the problem of the treatment of a large amount of coal ash in Indonesia. In the past studies coal ash was applied to postmine land with the aim of improving soil conditions for plant growth however heavy rain in the tropical climate may cause soil erosion with the change

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Surface Mining Agency s New Structure Must Usher in New

 · Today Interior Secretary Ken Salazar is planning to announce that the Department of Interior s Office of Surface Mining Reclamation and Enforcement will be folded into another Department of Interior subdivision the Bureau of Land Management. The Office of Surface Mining Reclamation and Enforcement (OSMRE) created in 1977 when Congress realized the devastation of surface coal mining

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Rare earths in the cross-hairs of new high MINING

 · Rare earths in the cross-hairs of new high-tech arms race. Bloomberg covered the story and published it on Wednesday. The article says that for the second half of

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Lufi RachmadPrincipal and DirectorGEOMINE Mining

Bandung Jawa Barat Indonesia. GEOMINE is a mining and geotechnical engineering consulting firm providing a wide range of engineering services for both open pit and underground mining with a broad range of commodities (gold silver copper iron nickel coal). geomine-indonesia. We provide the following services

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China s coal industry to usher in International Mining

 · China s coal industry to usher in 5G era. According to news agency Xinhua China s largest hard coal producer Yangquan Coal Industry Group has inked a framework agreement with China Mobile and Huawei on promoting 5G-based intelligent mining. The new alliance based on the advantages of 5G in both underground and surface mining is expected

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Agus WIDAYAT Lecturer PhD Bandung Institute of

Coal can be utilized directly after being excavated from mining site and after it passed a size reduction process. This process produces various sizes of coal ranges from boulder up to fine coal.

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Mining in Indonesia taking a heavy social environmental toll

 · Mining in Indonesia taking a heavy social environmental toll. In a patch of rainforest in northern Sumatra a 28-year-old in jeans and tall rubber boots snubs out his cigarette and pulls a

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Alabama

 · SURFACE MINING COMMISSION P.o. BOX 2390JASPER ALABAMA (205) FAX (205) Permit Revision Number R-4 REVISION TO PERMIT FOR SURFACE COAL MINING OPERATIONS Pursuant to the Alabama Surface Mining Control and Reclamation Act Act No. 81-435 and duly

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Physical and Geochemical Characteristics of Coal Mine

 · The mining operation consists of two mining areas Sengata and Bengalon in which several pits are operated in parallel. In 2010 the total overburden removal at KPC s was 460 278 kilo bank cubic meter (kbcm) and coal production was 39 302 kt which means an average of 11.71 bcm of overburden is removed for each ton of coal mined.

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Our TeamQuantus Indonesia

OUR TEAM PT. Quantus Indonesia as a 100 local private-owned entity was established to provide and deliver high quality integrated engineering services and operations Quantus provides services for Exploration Geological Engineering (Geological Mapping Exploration Planning Management Geological Modeling and Resources Estimation) Mining Engineering (Reserving Mine Planning

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Glossary of Mining TermsCoal Education

 · A. AbutmentIn coal mining (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides which act as abutments of the arch of strata spanning the roadway and (2) the weight of the rocks over a longwall face is transferred to the front abutment that is the solid coal ahead of the face and the back abutment that is the settled packs behind the face.

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Glossary of Mining TermsCoal Education

 · A. AbutmentIn coal mining (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides which act as abutments of the arch of strata spanning the roadway and (2) the weight of the rocks over a longwall face is transferred to the front abutment that is the solid coal ahead of the face and the back abutment that is the settled packs behind the face.

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sulastono- Bandung Jawa Barat Indonesia Profil

Coal business development and acquisition of coal mining properties Surface mapping and interpreted surface mapped coal data for exploration drilling plan coordination with drilling contractors drill chip core logging and geophysical logging interpretation and coal prospect estimation. Project location

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PAPER OPEN ACCESS Coal Layer Identification using

Geological Research and Development Directorate General of General Mining and Energy (Bandung) 2 Dahlin T Zhou B 2003 Multiple-gradient array resistivity measurements for multichannel 2D imaging. (Near Surface Geophysics European Association of Geoscientists Engineers) 3 Loke M H 2004 Tutorial 2-D and 3-D Electrical Imaging Surveys

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Welcome to AdimitraPT. Adimitra Baratama Nusantara

Mining Site. ABN Mine Site is located in Sanga-Sanga Kutai Kartanegara Regency East Kalimantan. It is an open-pit surface mining operation using fleets of trucks and excavators. Coal Processing CenterMain Stockpile. The main stockpile currently can store up to 400 000 MT of crushed coal. During shipment the drawdowns between each piles

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PAPER OPEN ACCESS Coal Layer Identification using

Geological Research and Development Directorate General of General Mining and Energy (Bandung) 2 Dahlin T Zhou B 2003 Multiple-gradient array resistivity measurements for multichannel 2D imaging. (Near Surface Geophysics European Association of Geoscientists Engineers) 3 Loke M H 2004 Tutorial 2-D and 3-D Electrical Imaging Surveys

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Surface subsidence due to underground mining operation

 · Indonesia produced 400 Mt of saleable coal in 2013 with rapid increase in production by almost 99 of surface mining year by year as shown in Fig. 1 (BP 2013 Indonesia Coal Mining Association 2014).On the other hand the rapid increase in production has brought strong concerns on sustainable supply of coal with current quality level in future due to deepening mining location with

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Highwall Stability due to Punch Mining at Opencut Coal

 · Conventional highwall mining extracts coal with an auger machine or a continuous miner from exposed seams at the base of opencut or strip operations. However under poor strata and high stress conditions highwall mining cannot be conducted due to pillar and roof failures. In such cases punch highwall mining is more effective than the conventional highwall mining.

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Evaluation of rockburst potential in a cut-and-fill mine

backfilling surface and stope back is controlled such that the drilling and blasting of the next slice can be done without difficulty. Figure 1 depicts typical layout of a cut-and-fill mine. As the mining progresses upwards the thickness of crown pillar decreases while mining-induced stress level and

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Potential Hydrological Interaction of a Gold Mine and a

 · Future coal mining is proposed near the gold mine s No. 9 shaft where the No. 4L coal seam floor is situated at 1 461 m AMSL (126 m below the surface). The gold mine s operation at the No. 9 shaft is situated at 1 380 m AMSL (207 m below the surface) approximately 81 m below the coal

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Faculty of Mining and Petroleum Engineering » New coal

Mining Engineering Program Institut Teknologi Bandung Indonesia Fig. 4 shows a typical division of the four friction zones identified on the top end-surface of coal specimens after UCS tests. 22 23The core zone is defined as the highly-confined zone that shows no friction marks that indicate movement experienced on its surface during the

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Potential Hydrological Interaction of a Gold Mine and a

 · In Mpumalanga Province South Africa an underground coal mine lies above areas of a gold mine and there are concerns that preferential flow paths might connect the two mines allowing flow from the coal mine into the gold mine. There is also a risk that subsidence associated with the coal mining will damage existing geohydrological barriers between the shallow Karoo aquifer where the coal

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China s coal industry to usher in International Mining

 · China s coal industry to usher in 5G era. According to news agency Xinhua China s largest hard coal producer Yangquan Coal Industry Group has inked a framework agreement with China Mobile and Huawei on promoting 5G-based intelligent mining. The new alliance based on the advantages of 5G in both underground and surface mining is expected

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Operation and Monitoring Guidelines for Irrigating with

Coal extraction has been ongoing at the Mpumalanga Coalfields for more than 100 years. Coal is generally mined by opencast- or underground methods in South Africa. Underground mining comprises in excess of 100000 ha while opencast mining is expected to eventually exceed 40 000 ha (Grobbelaar et al. 2002). In opencast areas much of the

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Enhancing a Decision-Making Framework to Address

 · The coalmining industry usually distinguishes between open pit mining and underground mining. Open pit mining is undertaken for coal deposits relatively near the surface e.g. 20 m while deeper deposits may necessitate underground mining activities 6 . Over 90 of the mining activities in developed economies adopt open pit methods 6 .

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MinutesIndependent Expert Scientific Committee on

The proposed project is an extension of the existing Muja and Chicken Creek Coal Mine open cut coal mining operation. It is located in the Collie Basin in Western Australia approximately 200 kilometres south of Perth 70km east of Bunbury and 18 kilometres south-east of Collie. The project is in the Collie Basin and within the Collie River surface

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Danny DangkuaOperation DirectorPT Bara

Danny Dangkua Indonesia Operation Director di PT Bara Anugerah Sejahtera (Subs of Titan Infra Energy) Mining Professional with 22 years experience (last 5 years in executive level) 500 koneksi Lihat profil lengkap Danny di LinkedIn dan terhubung

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BlackGoldOur People Leads the group with strategies

 · Prior to his tenure with PT Pamapersada Nusantara Mr Parulian had served in both the Surface and Underground mining divisions of PT Freeport Indonesia Inc. (first as a mine engineer trainee where he progressed to a control foreman and subsequently the assistant chief engineer) from January 1983 to January 1994.

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Modelling the Hydrogeochemical Evolution of Mine

 · With coal resources steadily becoming depleted opencast coal mines in South Africa will approach a period of mass closure inevitably impacting on groundwater resources (Stacey et al. 2010 Vermeulen and Usher 2005). Post-mining management and predicting the mine water quality after

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Tati Suryati Syamsudin Liris Lis Kowara Devi Nandita

 · Soil Protozoa diversity at coal post-mining area at different age of reclamation Tati Suryati Syamsudin Liris Lis Kowara Devi Nandita Choesin 1School of Life Sciences and Technology Institut Teknologi Bandung 2Department of Forestry Sekolah Tinggi Pertanian Kutai Timur Indonesia. Global Symposium on Soil Biodiversity Rome 10-12 March 2020 1

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Surface Mining Agency s New Structure Must Usher in

 · Today Interior Secretary Ken Salazar is planning to announce that the Department of Interior s Office of Surface Mining Reclamation and Enforcement will be folded into another Department of Interior subdivision the Bureau of Land Management. The Office of Surface Mining Reclamation and Enforcement (OSMRE) created in 1977 when Congress realized the devastation of surface coal mining

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