Dec 01 1996 Abstract. Given the capital intensity of the dragline operation coupled with rising cost of explosives the onus is on mine operators to make maximum use of explosives in blasting to assist dragline diggability. At a surface coal mine in South Africa large boulders necessitating secondary breakage and in some cases completely unfragmented sections of a blast resulting in low dragline diggability
Aug 01 1984 This work relates a method developed in surface coal mines to derive a diggability index based upon rock mass parameters and related to equipment capabili- ties. PRIOR DIGGABILITY STUDIES Diggability prediction has traditionally been based on intact rock strength and dis-
The work was conducted in operating British surface coal mines and presents a technique for diggability assessment in that mining and geotechnical environment. A diggability index is proposed which consideres both ground conditions and excavating equipment capabilities. This is supported by reference to back-analysis of several mine excavating case studies.
Surface mining jonathan peck low resthe worldwide surface mining industry. peck is a leader in innovative technology conceptual design and development with over years of academic and entrepreneurial production and diggability monitoring load weighing health and hpgps guidance products for cable shovels in the mid-.
Oct 18 2016 Continuous Rating for Diggability Assessment in Surface Mines. Melih IPHAR 1. . Kirmanli C. and Ercelebi S.G. 2009 An Expert System for Hydraulic Excavator and Truck Selection in Surface Mining The Journal of the Southern African Institute of Mining and Metallurgy 109 727-738.
Jun 14 2019 equipment selection in surface mining is primarily depends on determination of ease of excavation in site. The assessing of ease of excavation of rocks has been based on empirical and intuitive processes. Traditionally the problem has been reduced to determining whether blasting or ripping is required prior to mechanical excavation.
Feb 01 2006 The determination of the ease of rock excavation is one of the critical stages in surface mining and civil engineering projects. On many projects the ease of rock excavation is mainly based on whether the rock can be economically excavated by mechanical excavators or drilling and blasting is
May 09 2013 In surface mining and civil engineering projects terms such as diggability rippability excavatability and boreability are widely used to assess rock mass excavation methods and required equipment. The rippability index was defined for assessing overburden loosening by
reserves which exist near the surface are mostly depleted. Because of the increase in cost which is caused by increasing depths in surface mining larger equipment capacities have been necessary. The huge amounts of material to be dug and hauled especially in dispersed low grade ore deposit have required bigger and heavier mining equipment.
A. Ceylanoglu Performance monitoring of electrical power shovels for diggability assessment in surface coal mines Ph. D. Thesis in Mining Engineering Middle East Technical University Ankara 1991. Google Scholar
Jul 03 2016 Scoble M.J. and Muftuoglu Y.V. 1984 Derivation of a diggability index for surface mine equipment selection Mining Science and Technology Vol. 1 pp.305–322. Scott A. and McKee D.J. 1994 The interdependence of mining and mineral beneficiation process on the performance of mining projects Proceeding AusIMM Annual Conference
Bucketwheel Excavator Diggability Assessment from Surface Refraction Seismic Profiling. Coal Mining Technologies Surface Mining . Published December 87 Project Number 0670-C0740. Get Report Author GJ ORegan Utah Development Co Ltd .
Material diggability matching the productivity of system components. In-pit crushing 4 Ch. 6.10. Mining Method Selection – a summary 2 4 Module 3 Production rates and costs in cyclical mining approximately 8 lecture hours Estimating production rates in cyclical mining
Applied research in surface mining methods and equipment Material diggability assessment for BWE stripping of plains coal Abstract 325 NJi.Wadeamp;PJi.Clark Electric mining shovel diggability studies 327 CBendricks JDavidson MScoble amp; M.Cole Design of drilling and blasting subsystems - A rock mass classification approach 335 AKGhose
Material diggability matching the productivity of system components. Other mining methods. Bulldozing Scrapers Continuous surface miners other. Mining method selection 2 4 Module 3 Production rates and costs in cyclical mining approximately 6 lecture hours Estimating production rates in cyclical mining
Jan 25 2014 Equipment selection for high selective excavation surface coal mining Table I Determination of ease of digging and excavation method according to the diggability index rating method for B3 seam level at SLE Parameter and selection Rock formations in B3 level Coal Slightly 20 17 946 261 0 0.3–0.6 15 0.3–0.6 10 Slightly 20 24 516 750 10 0.3 .
June 22 11am EDT 9am MDT 8am PDT 4pm CET This event series held in partnership with CIM and its Surface Mining Society will touch on the general ore preparation flow for improving effectiveness and efficiency in mining and on how drilling and blasting design processes have a major impact on diggability. There will also be a focus on optimizing the ore body planning and preparation .
Jan 01 1986 An integrated stability assessment system for surface mine design 7. Aspects of geotechnical reliability in surface mining Design of pit wall slopes 8. Design of open pit coal mine slopes An integrated approach 9. Design methods for open pit coal mine footwalls 10. Slope design problems and proposed solutions at Key Lake Minings Deilmann Pit 11.
Aug 14 2020 Continuous Surface Mining . DOI link for Continuous Surface Mining. Continuous Surface Mining book. Equipment operation and design. Edited By Tibor G. Rozgonyi Tad S. Golosinski. Edition 1st Edition. First Published 1988. eBook Published 14 August 2020. Pub. Location London. Imprint CRC Press.
May 01 2021 Surface mining operators need to evaluate the power to weight ration of a surface excavation machine. Harder rock requires a heavier machine and more horsepower. In addition the surface excavation machine a machine cuts impacts productivity. Units that cut upward are not able to utilize the weight of the machine which impacts its performance .
Surface Mining Open Pit . Understanding the mining method and operational constraints. Rigorous understanding of site geology and hydrogeology. Ground characterisation through statistical means. Identification and stability analysis of structural mass and complex slope failure modes. . Blastability and diggability assessments.
Jul 10 2020 Diggability of the blast by the loading machines is a result of the degree of fragmentation the segmentation and muckpile shape including throw drop and lateral spread. . look no further than the Office of Surface mining presentation.
Diggability prediction methods. Analysis of excavation plant and method efficiencies. Classification of diggability. Planning of excavation equipment fleet. MAD712 Slope Stability in Surface Mining 3 0 3 6 ECTS; Mechanical analysis of slope stability. Geological data collection. Shear strength. Effect of water. Types of instabilities.
Determination of diggability characteristics and blasting requirements for a coal contract UK. Mine Design and Planning. Technical audit of surface coal mine designs and review of steep seam surface coal mining operations in Australia. Post-closure assessments