Thesis Sistem Block Caving Mining

Thesis Sistem Block Caving Mining

LONG TERM PLANNING OF BLOCK CAVING OPERATIONS

1.4 Contributions made by this thesis 3 II LONG TERM PLANNING IN A BLOCK CAVE MINE 5 II. 1 Introduction 5 11.2 Block Cave Mining Method 6 11.3 Traditional Steps in Planning a Block Cave Mine 7 ... Figure 3-10: Comparison between methods to compute mining reserves in Block Caving 50 Figure 3-11: Comparison between methods to compute mining ...

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May 16, 2014 · 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

Future Block and Panel Caving Mining Systems and ...

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,

Thesis Sistem Block Caving Mining - trattoria-ricordi.fr

Phd Thesis: Numerical modelling of surface subsidence associated with block caving mining using FEM/DEM modelling approach. Welcome In Mining and Sport Blog: Block Caving. Block caving adalah metode penambangan yang bertujuan untuk memotong bagian bawah dari blok ... Keuntungan penambangan block caving : 1. Sistem penambangan ...

Block Caving - groundtruthtrekking.org

Dec 21, 2012 · Block caving is an underground hard rock mining method that involves undermining an ore body, allowing it to progressively collapse under its own weight. It is the underground version of open pit mining. In block caving, a large section of rock is undercut, creating an artificial cavern that fills with its own rubble as it collapses.

THE OPTIMAL BLOCK SIZE IN THE BLOCK CAVING MINING

mining rate, lateral mining rate, mining capacity, maximum number of active drawpoints and advancement direction [6]. Block caving is based on material flow as a result of gravity. Northparkes was the first mine in Australia to use a variation of the cost-effective block cave mining technique in its underground operations.

Paper: Draw rate optimisation in block cave production ...

Abstract: Among the underground mining methods available, caving methods are favoured because of their low cost and high production rates. Block caving operations offer a much smaller environmental footprint compared to equivalent open pit operations due to the much smaller volume of waste to be moved and handled.

A study of subsidence at the San Manuel Mine, Tiger, Arizona

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 in the Graduate College, University of Arizona 1957.

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May 27, 2012 · 4. Block Caving and Associated Subsidence 4 Block cave mining is characterized by caving and extraction of a massive volume of ore which translates into a formation of major surface depression or subsidence zone directly above and in the vicinity of the mining operations. The ability to predict surface subsidence associated with block caving ...

BAB III LANDASAN TEORI - Unisba

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.

Characterisation of block cave mining secondary ...

Abstract. Block cave mining is a widely employed mining method around the world due to its low operating cost. One of the key factors that affects block caving mine’s productivity is fragmentation; accordingly, significant efforts have been made and are currently being made to study fragmentation processes, including the use of numerical modelling and remote sensing techniques.

Draw Control in Block Caving Using Mixed Integer Linear ...

Block caving is a complex and large-scale mining method. The application of block caving is for low-grade, caveable and massive ore-bodies. Among the underground mining methods available, caving ...

(PDF) Assessment of Ventilation Circuit for Block Caving ...

With the tendency of world ore deposits to be deeper and of lower grade, block caving is becoming an increasingly important mining method. As with any underground method, an adequate mine ...

Productivity of a Continuous Mining System for Block ...

The method has particular relevance in the Chilean mining industry, where approximately 40% of the Chilean national copper production comes from block caving mines. Caterpillar (CAT) and the National Copper Corporation of Chile (Codelco) have developed the Rock Flow Continuous Mining System as a consequence of the industry needing to increase ...

Phd Thesis: Numerical modelling of surface subsidence ...

Through the use of an integrated FEM/DEM-DFN modelling technique this thesis presents a new approach to simulation of block caving induced surface subsidence a

NUMERICAL MODELLING OF ROCK MASS DEFORMATION

Acta Geodyn. Geomater., Vol. 9, No. 3 (167), 379–388, 2012 NUMERICAL MODELLING OF ROCK MASS DEFORMATION IN SUBLEVEL CAVING MINING SYSTEM .Jan BLACHOWSKI 1)* and Steinar ELLEFMO 2) 1) Institute of Mining Engineering, Wroclaw University of Technology, pl. Teatralny 2, 50-051 Wroclaw, Poland 2) Department of Geology and Mineral Resources Engineering, Norwegian

Quantifying stresses and support requirements in the ...

International Journal of Rock Mechanics & Mining Sciences 39 (2002) 617–632 Quantifying stresses and support requirements in the undercut and production level drifts of block and panel caving mines R. Truemana,*, M. Pierceb, R. Wattimenaa aJulius Kruttschnitt Mineral Research Centre, The University of Queensland, Queensland, Australia

(PDF) Investigation of caving induced subsidence at the ...

In addition, chimney caving was found to be a prominent secondary surface disturbance feature. Figure 4 illustrates the terminology used to describe subsidence features related to block and panel caving. Historically, mining engineers have defined the extent of subsidence features using angles measured from the base of the undercut.

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Thesis Sistem Block Caving Mining grinding and crudhing of iron ore small scale portable crusher portable and moveable stone crusher price of iron ore crusher in philippines Of Coal Crushers For Indian Coal stone crusher machine photos buy copper crusher plant for copper ore ...

The New Sand And Gravel Production Line Equipment

The New Sand And Gravel Production Line Equipment. the new sand and gravel production line equipment. the bulk of the demand for sand and gravel nonproductionline perfectly gravel into the production line sand production line at the same time the high standard of the material but also in the production of unique received unanimous praise from many sectors of mining metallurgy construction

Analytical Model Determining the Optimal Block Size in the ...

Jun 05, 2014 · Nowadays along with population growth, industry development, consumption of mineral resources and the fact that the reserves on hand are running out, the depth of surface and underground mines for further exploitation are increasing. During recent years, in underground mining, the block caving method for low-grade and large-scale deposits has shown a growing rate of application. The

Marco A. Konrat Martins - Analyst - CRU | LinkedIn

Built database of copper mining incidents, copper prices (COMEX & LME), mines and related parameters (annual production, mining method, head grades, cash costs, annual resource & reserves etc.) Report on "Block Caving Transition": overview on operating, planned and potential block caving adoption in copper mines.

Theresa Maier – Montanuniversität Leoben – Österreich ...

#RaiseCaving Cheaper and more flexible #mining at great depths: Mass-mining methods, such as block caving or sublevel caving, enable low-cost and Beliebt bei Theresa Maier New raise caving mining method to tackle Kiruna depths Greater mining depths at LKAB's #Kiruna #ironore mine in Sweden have necessitated the

Newcrest Mining Limited - Red Chris Block Cave PFS ...

Oct 12, 2021 · The Study confirms Newcrest's original investment thesis of unlocking the underground portion of this Tier 1 deposit by leveraging Newcrest's industry-leading block

Characterisation of Block Cave Mining Secondary

the range and distribution of the sizes of the rock blocks expected to be induced by caving. In the context of block and panel cave mining, fragmentation processes are characterised as: i) In-situ (natural) Fragmentation: in-situ blocks that are naturally present within the rock mass before any mining activity takes place.

A systems approach to understanding block caving ...

This thesis aims to further the understanding of caving geomechanics. Multiple factors affect block caving, making understanding the process for optimisation a challenge. This thesis uses a systems approach coupled with virtual reality scientific visualisation as a tool to integrate data from the block cave mining system to understand ...

(PDF) Use of experiments to quantify the flow-ability of ...

Keyword: caving mining, flow-ability, hang up, vertical stresses, fines and humidity content. 1 Introduction In block/panel caving, ore production is affected by interferences associated with the caving process, especially those related to the gravity flow, such as hang ups and over size rocks.

A new cavability index in block caving mines using fuzzy ...

Jul 01, 2015 · 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

Evaluation of intensive preconditioning in block and panel ...

Apr 28, 2017 · (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.

Physical and Numerical Modelling of Cave Propagation ...

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.

Quantifying stresses and support requirements in the ...

International Journal of Rock Mechanics & Mining Sciences 39 (2002) 617–632 Quantifying stresses and support requirements in the undercut and production level drifts of block and panel caving mines R. Truemana,*, M. Pierceb, R. Wattimenaa aJulius Kruttschnitt Mineral Research Centre, The University of Queensland, Queensland, Australia

Alexander VYAZMENSKY | Doctor of Philosophy

This paper addresses one of the most challenging problems in mining rock engineering—the interaction between block cave mining and a large overlying open pit. ... during block caving can lead to ...

BLOCK CAVING - NSP

Block caving atau runtuhan blok adalah metoda penambangan dengan memotong besarnya area luas penampang bagian bawah dari blok bijih untuk meruntuhkan bijih di atas level undercut.Dengan metode ini akan terbentuk gua-gua ambrukan (cave) yang nantinya akan terjadi perambatan ambrukan (cave propagation) pada bijih akibat tekanan dari atas yang mempunyai beban dari bijih itu sendiri, dan sifat ...

(PDF) Diesel engine exhaust emissions survey of ...

The DOZ mining main method used block caving, ... level to control block-caving mines. ... PTFI memiliki komitmen untuk mengembangkan Sistem Manajemen Lingkungan (SML) yang

Fakultas Teknik Pertambangan dan Perminyakan » Tesis dan ...

Supriyadi. Pemisahan Anomali Gayaberat Akibat Amblesan dan Akibat Penurunan Muka Air Tanah _x000D_. Berdasarkan Data Gayaberat Mikro Antar Waktu _x000D_. Menggunakan Model Based Filter (Studi Kasus Dataran Aluvial Semarang) 32304001. Eko Widianto. Penentuan Konfigurasi Struktur Batuan Dasar _x000D_.

A transition from a large open pit into a novel ...

Jun 01, 2019 · 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.

Simulation and excavation of horizontal developments in ...

To achieve the first objective, discrete event simulation techniques were applied in the short-term planning process of horizontal developments in a case study of a mine operated by Panel Caving. The simulation model was built and calibrated in simulation software especially designed for

Fakultas Teknik Pertambangan dan Perminyakan » Tugas Akhir

Bawah Tanah Block Caving DML2 PT. Freeport Indonesia: 12107019: Yusuf Putra Nugraha: Studi Pengaruh Material Terlemah Lereng Tambang Nikel PT. _x000D_ XYZ Halmahera Timur, Provinsi Maluku Utara: 12107020: Tedo Purnomo: Rancangan Sistem Penyaliran Tambang Pit Others Selatan Lati _x000D_ Mine Operation PT. Berau Coal Periode 2011-2015 Ditinjau ...