thesis sistem block caving mining

Over the last 10 years, the trend toward the mining of deeper, higher tonnage deposits, and lower grade orebodies have made caving mining methods (Block and Sublevel) increasingly attractive to the global mining industry. This is due to their low mining cost. During this period the scale of these caving operations has increased significantly.

challenge. In caving operations, the draw co ntrol regulates loading at the draw point by providing information on when to stop loading. Loading at the draw point for caving operations, such as sublevel caving (SLC), is much more complex than loading for other underground mining methods, for two primary reasons: 1.

In order to complete this thesis work, a literature study on sub level caving mining, shock wave interactions in blasting, effect of delay timing and a study on fragmentation models has been done. The overall process involved a literature study, construction and preparation of small-scale models,

National Institute of Technology Rourkela This is to certify that the thesis entitled " Optimization of Blasting Parameters in Opencast Mines " submitted by Sri Manmit Rout (Roll. No.: 10305019) and Sri Chinmay Kumar Parida (Roll. No.: 10305017), in fulfillment of the …

Penyesuaian pada MRMR meliputi pelapukan, tegangan terinduksi, joint orientasi dan efek peledakan (Laubscher 1990). Selama beberapa tahun, sistem MRMR menjadi sistem klasifikasi yang paling banyak digunakan pada block caving. Laubscher dan Jakubec (2001) baru-baru ini menerbitkan beberapa revisi pada sistem MRMR. 3.2.4.1.

 · Phd Thesis: Numerical modelling of surface subsidence associated with block caving mining using FEM/DEM modelling approach 1. NUMERICAL MODELLING OF SURFACE SUBSIDENCE ASSOCIATED WITH BLOCK CAVE MINING USING A FINITE ELEMENT / DISCRETE ELEMENT APPROACH by Alexander Vyazmensky Master of Applied Science, University of British Columbia, 2005 THESIS …

A thesis submitted in partial fulfilment of the requirements of the Bachelor of Engineering degree in Mining Engineering UQ Engineering Faculty of Engineering, Architecture and Information Technology ... Development blasting operations in Sub-level and block caving mines play a significant role in

Chimney caving is the most dominant type of subsidence in southwestern Pennsylvania. Since chimney caves seem to occur sporadically, steps must be taken to …

Mining method employed. The field of application of power scrapers may be outlined as follows: Development work Inclined shafts Drifts and cross cuts Production stapes Top slicing stapes Open stapes Room and Pillar stapes Sub level caving stapes Cut and fill s topes Square set stapes Shrinkage stapes Block caving stapes Waste Filling of stapes

BLOCK. DEVELOPMI~~T. The first blooks to be caved were developed very much atter. the prooedure. followed in the copper mines of Arizona. This. paper covers the ninth. block. to. be. oaved. With a. hard, tough rock. like our. limestone. it. was. found that some alter­ ations in the development and control of draw. in. caving were necessary to ...

METODE PENAMBANGAN RUNTUHAN (CAVING) PENDAHULUAN Metode ambrukan (caving method) adalah cara penambangan endapan bijih atau batubara pada tambang bawah tanah dengan cara pengambrukan yakni meruntuhkan deposit bijih atau batubara, karena adanya pengaruh gaya grafitasi K LA SIFIK A SI M ETO D E P EN A M B A N G A N R U N TU H A LONGWALL MINING N (C AV ICAVING SUBLEVEL NG) TOP SLICING BLOCK ...

caving mining method, it is made basic model (block diagram) for the methodology, which is shown in Figure 1. Because this science paper considers the method of ore exploitation with sublevel caving mining, in which the coefficients of recovery/losses and ore dilution are in mutual

This master thesis is a pilot study for further work to be done by LTU and in a project called SIMS or Sustainable Intelligent Mining Systems, where the aim is to physically demonstrate diesel free LHDs doing productive work in mines. The objective of the thesis was to assess if the integration of battery-powered LHD machines

are geared to caving operations. The primary mining method used in Nevada is a form of mechanized cut-and-fill. This method is amenable to achieving a high rate of recovery when mining irregular ore geometries. Variations on this method are practiced at different mines and within different areas of …

A study of Isolated Draw Zones in Block Caving Mines by means of a large 3D Physical Model. International Journal of Rock Mechanics and Mining Sciences, vol 44, issue 6, pp. 860-870. 8. Castro R, Trueman, R. 2008. An experimental review of gravity flow for block and panel caving applications In Proceedings of Massmin2008, 9-11 of June, Lulea,

For this senario, a theoretical block caving iron mine will be considered. This mine has an expected reserve of 50 million tonnes. First, an appropriate version of Taylor''s rule must be picked. Since this mine is a room and pillar mine, the most appropriate version would be Long''s 2009 open pit and block caving …

mined by block caving. If an orebody is suitable for mining by block caving, the fragmentation characteristics will have a bearing on the method of ore extraction. Suitability of an Orebody to Block Caving Ideally the orebody should be such that the rock within the stope fails readily and the area outside the stope remains intact.

Block Caving. Tambang DMLZ berada di dalam satu bagian badan bijih dengan area tambang GBT 1 & 2, IOZ, dan DOZ, lokasinya terletak pada sistem deposit East Ertsberg Skarn Sistem (EESS) (Gambar 1), dimana terletak 410m dibawah tambang DOZ yang masih aktif sampai saat ini dan 1590m di bawah

LONG TERM PLANNING OF BLOCK CAVING OPERATIONS USING MATHEMATICAL PROGRAMMING TOOLS By ENRIQUE RUBIO B. Sc., Universidad de Chile, 1998 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF APPLIED SCIENCE in THE FACULTY OF GRADUATE STUDIES Department of Mining and …

 · 1. Introduction. Block cave mining is a mass mining method that allows for the bulk mining of large, relatively lower grade, ore bodies. In terms of cost and rate of production, bulk mining of this kind yields a substantial return per ton and has a higher …

Block caving is an underground mining method, that uses gravity to extract massive orebody located at depth. Mine schedule and operation can be heavily influenced by fluctuation in fragmentation size. This thesis focused on studying the influence of natural rock …

Incorporation of 3-D Mixing in Long-term ‎Production Scheduling Optimization for Block ‎Caving Mines. Author / Creator Khodayari, Firouz; As open-pit mines go deeper, because of the massive amount of waste removal which is ‎required to ‎extract the ore as well as high operational costs per tonne, underground mining has ‎become more ‎attractive.

Number of words of this Ph.D. Thesis summary: 7522 ... or in the case of caving mining methods, the rock is required to flow into the draw point, so it is necessary for the rock mass being sufficiently (whether or not ... or net of rock blocks crossed by geological discontinuities of different origin, so the rock mass behavior depends not only ...

Thesis Certification i. THESIS CERTIFICATION . I, Walter Keilich, declare that this thesis, submitted in fulfilment of the requirements for the award of Doctor of Philosophy, in the School of Civil, Mining and Environmental Engineering, University of Wollongong, is wholly my own work unless otherwise referenced or acknowledged below.

An Extended Conceptual Model of Caving Mechanics. PhD thesis, The University of Western Australia. Cumming-Potvin, D. and Wesseloo, J. (2014). Assessing the state of the rock mass in operating block caving mines: A review. 3rd International Symposium on Block and Sublevel Caving, Castro, R. Santiago, Universidad de Chile: 118-127.

(2017). Evaluation of intensive preconditioning in block and panel caving – part II, quantifying the effect on seismicity and draw rates. Mining Technology: Vol. 126, No. 4, pp. 221-239.

The block caving mining method is being increasingly applied as a mass mining method used to exploit base metals and diamond resources. In block cave mining, geotechnical monitoring is fundamental to the successful management and operation of the mine.

Keywords: Palabora block cave, caving mechanism evaluation, reconciliation References: Bezuidenhout, JJ 2018, A Guide for Managing the Resource Model of the Copper Block-cave at Palabora Mining Company, MSc. thesis, The University of the Witwatersrand, Johannesburg.

 · The business case to continue with the mining of the Chuquicamata orebody is to change from the current large open pit to a novel macroblock variant block caving geometry. This requires a production rate of 140,000 t/d (50 Mt per annum), with a continuous material handling system to achieve the 7-year ramp-up to full production.

 · Glenn completed his graduate program at Newcrest Mining''s Telfer Gold Mine, a sub-level caving operation. Glenn moved to Argyle Diamonds Block Cave in 2010. His role at Argyle consists of ground control, ground support design, cave and drawbell monitoring, resin injection for ground consolidation, drawbell sequencing, undercutting ...

Ilustrasi Penambangan Block Caving 3.1.3 Sistem Produksi Seperti pada penambangan bawah tanah untuk batuan keras lainnya, daur development dan produksi terpisah dengan jelas. Masing-masing mengunakan mekanisasi tinggi tetapi peralatan yang digunakan sesuai dengan fungsinya sendiri- sendiri. Produksi pada tambang block caving terdiri dari : 1.

These are intended as an aid to engineering judgment for decision makers at the pre-feasibility and mine design stages. This study also addresses one of the most challenging problems in mining rock engineering - the interaction between block cave mining and a large overlying open pit, focusing on caving induced step-path failure initialization.

A Thesis submitted to the faculty of the Department of Mining and Metallurgical Engineering in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE ... Development of Blocks for Caving..... 26 Chapter III - Surface Expression of the Underground

Mining Operations, Dams and Impacts on the Indigenous Peoples of Benguet. ... Corporate mining in Benguet is done by surface mining as well as underground tunneling and block caving. Also ...

block caving", paper presented in Caving 2014, pp 299 – 306. The article is a summary of the preliminary results of the investigation, related to the flow ability of the granular material under confinement test. Experimental tests Secondary fragmentation model Hang up predriction Aplication to Block Caving mining