drillhole spacing pt adaro coal mines

Tim Kuhl

2020-4-20 · manganese mine . Employment History . Mine Technical Services, Principal Geologist, 2020 to present . Wood Group USA, Principal Geologist, 2005 to 2020 . Apollo Gold, Exploration Manager, 2004 to 2005 . TransAlta Centralia Mining, Senior Geologist, 2001 to 2004 . Cliffs Mining, Senior Mine Engineer, Hibbing Taconite Company, 1998 to 2001
Facilitator SHORT COURSE ON APPLIED MINING …

2012-3-13 · of Engineering in Mining Engineering (ITB, 1998), Master of ... Coal tonnage T Coal tonnage R Coal tonnage Q Coal tonnage P 0 1 10-6 2 10-6 3 10-6 4 10-6 5 10-6 6 10-6 7 10-6 8 10-6 0 200 400 600 800 1000 ... Drillhole spacing optimization and resource classification based on
Design of surface blast | Mining | Coal Mining

2019-4-30 · By keeping burden unchanged & elongating spacing alone the problem can be overcome. Hole diameter varies from 35 in small benches up to 440 mm in large benches. In India 100-150 mm blast hole diameter are used in limestone mines,150-270 mm in coal mines & 160 mm or above blast hole are used in iron ore mines is used.
Model of Water Resources Sustainability: Mining Void …

2020-1-16 · water supply, and fish farming in PT. Adaro Indonesia shows an Extended NPV of Rp 7.124.884.062.739.430 (± USD 593, 740, 338, 561.62) and B/C ratio of 8, 25. 1. INTRODUCTION Surface mining in coal mining causes void (ex-pit mining hole). This lead to ground water depletion because of opened soil layers causing loss of vegetation along with
David Dyer PG

Coal Geologist for international mining consultancy Marston, which was acquired by Golder Associates in 2011. ... located in Indonesia and 75% owned by PT Adaro Energy. Project duties included ...
Project Marilyn – Press Release

2015-1-14 · joint venture for its Indonesian Coal Project (ICP) with a subsidiary of PT Adaro Energy TBK (Adaro), which has agreed to acquire a 25 per cent interest in the ICP joint venture. BHP Billiton holds the remaining 75 per cent.
MAMAHAK PROJECT – JORC RESOURCES STATEMENT …

2015-6-9 · 2014, the geological models for PT Mamahak Coal Mining ("MCM") have now been updated. The MCM coal concession, located in the West Kutai Regency, East Kalimantan Province, Indonesia is owned by Kangaroo Resources Limited ("KRL") through its Indonesian holding entity PT Karsa Optima Jaya ("KOJ") 1 - Geophysical logging of drill holes
(PDF) Drill Holes Spacing Analysis for Estimation and ...

PDF | On Jul 1, 2021, M D Ramadhan and others published Drill Holes Spacing Analysis for Estimation and Classification of Coal Resources Based on Variogram and Kriging | Find, read and cite all ...
Facilitator SHORT COURSE ON APPLIED MINING …

2011-4-20 · Diploma in Mine Geostatistics (Ecole des Mines de Paris, France, 2003), and Doctor of Philosophy in Geostatistics and Geomodeling (Kumamoto University, Japan, 2007). At present he is being promoted to be Associate Professor at Department of Mining Engineering, Faculty of Mining and Petroleum Engineering of ITB. He is a member of International
Banti Group

Banti Group, Balikpapan. 2,118 likes. KAMI ADALAH KONSULTAN TAMBANG & LEMBAGA PELATIHAN DI BIDANG PERTAMBANGAN melayani pemetaan topografi pemetaan geologi desain tambang pemboran eksplorasi seta...
Drill hole spacing optimization of non-stationary data for ...

2020-4-15 · The drillhole spacing, especially for seam thickness are assumed too close at 75–100 m for simple to moderate geological condition. The method is to change the measurement of raw data to fulfill the assumption of stationary data. Reduce the original data using local averages to obtain the data stationary. Data Treatment
For personal use only

2008-1-31 · strike of the coal seams at a drillhole spacing of about 200m and line spacing of 400-800 metres. The Company has obtained results for the first six drillholes and detailed geological mapping is currently underway. Coal quality data on the coal seams drilled to date are awaited.
Appendix 5B Mining Exploration Entity Quarterly Report

2008-10-31 · Adaro has indicated that it intends to supply a large coal sample of up to 3,000 tonnes from one of Adaro''s mines in Indonesia to be processed at the Cessnock Plant. Provision of the coal is subject to relevant logistics but it is hoped that the coal will be delivered in …
PAPER OPEN ACCESS Stand performance of revegetation …

coal revegetation stands conventional cropping patterns and hydroseeding planting patterns. The research location is revegetation area of PT. Adaro Site Tanjung Tabalong. The research took place for 2 months from data collection, analysis of data and reporting article. Data is collected using nested plot, the main plot size used is 10 m x 40 m.
Attila Kovago

The strategy involves a large scale aeromagnetic survey (20,000 line km), coal rank mapping; 200,000 m of open and cored hole drilling, all supported by 2 helicopters, 2 dozers and 2 main field ...
KAJIAN TEKNIS PELEDAKAN PADA KEGIATAN ...

2012-10-25 · Ash, blast geometry that applied at Melak Coal Mine Project is 8m x 9m on burden and spacing,15 m bench height, subdrilling 1.6 m. For stemming must used 10mm material''s size.
(PDF) A methodological model to assist on the …

GIS-based optimization method for utilizing coal remaining resources and post-mining land use planning: A case study of PT Adaro coal mine in South Kalimantan Article Full-text available
PERBANDINGAN TIGA PENDEKATAN GEOSTATISTIK ...

International Journal of Coal Geology, 112, 107-113. Cornah, A., Vann, J., and Driver, I. (2013): Comparison of three geostatistical approaches to quantify the impact of drill spacing in resource confidence for a coal seam (with a case example from Moranbah
Awalé Resources Ltd. (ARIC.V

Diamond Twin Drillhole on High Grade Mineralization Completed at Charger, Odienné Project - Cote d''Ivoire: 23.06.21: Awalé Resources Drilling Intersects Offset Extensions to the Empire Main deposit, Odienné Project, Côte d''Ivoire: 14.06.21: High-Grade Gold Mineralization Intersected in Scout Drilling at the New Charger Prospect, Odienné ...
mining services

2019-12-21 · surrounding coal mine. Moreover, SRK inspected the local coal laboratory, and updated Standard Operating Procedures for the Rantau Nangka coal project based on site observations and findings. Thani Dubai Mining Limited Project: Medden gold, Republic of Yemen. Scope: SRK conducted a technical audit of previous exploration and
(PDF) cablebolting_in_underground_mines.pdf | Dedy ...

cablebolting_in_underground_mines. Enter the email address you signed up with and we''ll email you a reset link.
Classification of Coal Resources Using Drill Hole Spacing ...

Pacific Prima Coal for overburden (OB) are 4,764,308,336 Tonnes, whereas coal reserves with an area of 9.259.100.76 Tonnes 29.8 Ha area and the value of stripping ratio of 5.1: 1, while the total ...
For personal use only

Pacific Prima Coal for overburden (OB) are 4,764,308,336 Tonnes, whereas coal reserves with an area of 9.259.100.76 Tonnes 29.8 Ha area and the value of stripping ratio of 5.1: 1, while the total ...
Consolidation of underground rockfill for ...

PT NHM operates two underground gold mines, Kencana and Toguraci at the Gosowong mine site in North Halmahera District, North Maluku Province, Indonesia. Due to several major stope over-break events at Toguraci, NHM changed the mining method from a …
ROCK MASS CLASSIFICATION FOR SEDIMENTARY ROCK …

rock mass classification for sedimentary rock masses in indonesia coal mining areas The stability of rock slopes is important for the safety of personnel and equipment in the open pit mine. Slope instability and failure occur due to many factors such as adverse slope geometry, geological discontinuities, weak or weathered slope material due to ...