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Sublevel stoping

  • sublevel stoping SpringerLink

    sublevel stoping Teilchenpfeilerbau, Etagenbau m, Teilsohlenkammerbau [Die Abbauhöhe wird zwischen zwei Sohlen durch Strecken in (Abbau)Scheiben unterteilt, deren Hereingewinnung im Rückbau bei stufenförmiger Verhieb(s)linie erfolgt]

  • Economic Comparison of Drilling Systems in Sublevel

    apply sublevel stoping is 55 MPa normally. Also sublevel stoping doesnt have a limitation in deep rate. Up to now sublevel stopping method has been applied in depth about 900 m under the surface. In ore bodies which have over 6 m width range, appropriate geometrical form is create to utilize drilling and blasting pattern with high production

  • Stoping - Wikipedia

    Stull stoping is a form of stoping used in hardrock mining that uses systematic or random timbering ("stulls") placed between the foot and hanging wall of the vein. The method requires that the hanging wall and often the footwall be of competent rock as the stulls provide the only artificial support.

  • (PPT) SUBLEVEL STOPING Iqbal DACHI - Academia.edu

    Sublevel stoping ini melakukan drilling dan blasting dimana seluruh pekerjaan ini dilakukan dari setiap sublevel pada ore block. PENAMPANG MELINTANG SUBLEVEL STOPING SYARAT Syarat untuk melakukan Sublevel Stoping yaitu : 1. Dip deposit terjal (>45, bagusnya 60-90) 2. Endapan bijih dan batuan induk harus kuat dan keras 3.

  • Sublevel stoping - SlideShare

    Mar 27, 2012· Sublevel stoping 1. UNIVERSIDAD DE SANTIAGO DE CHILE FACULTAD DE INGENIERIA DEPARTAMENTO DE INGENIERIA EN MINAS TOPICOS AVANZADOS: MINERIA SUBTERRANEA* Alumnos: Juan Fuenzalida y Elizabett López Profesor: Edgar Adam Ayudante: Mauricio Cordero Fecha de Entrega: 4 de abril de 2011 2.

  • Underground Mining Methods - MineralsEd

    Sublevel stoping Sublevel stoping is a mining method in which ore is blasted from different levels of elevation but is removed from one level at the bottom of the mine. Before mining begins, an ore pass is usually drilled from a lower to a higher elevation. Jumbos selectively drill holes into the roof of the drift and fill them with explosives

  • What is the difference between sublevel stopping and

    For sublevel stoping the ore body and walls should be strong enough to support open stoping. In this method, the ore is excavated in open stopes, retreating from one end of the stope toward the other. The orebody is developed first by a series of

  • Sublevel Stoping - Prensa Compumet

    Sublevel stopping is a productive large scale mining method that enables a multitude of production points in operation at the same time, offering good productivity and low dilution. Sublevel mining method . Etiquetado minado minas minería subterránea sublevel stoping Navegación de entradas.

  • (PDF) Optimization of ring blasting in sublevel stoping

    Dec 17, 2020· Abstract: Important parameters that describe successful sublevel stoping operation are optimal f ragmentation and low damage of rock mass around

  • Considerations for Sublevel Open Stoping - OneMine

    Sublevel stoping generally is a large-scale open stoping method. It sometimes is referred to as long-hole or blasthole stoping. This method usually is applied to strong ore bodies that require minimal support and are surrounded by strong country rock. The ore body should be

  • Design and operation of caving and sublevel stoping mines

    Design and operation of caving and sublevel stoping mines / Daniel R. Stewart, editor ; sponsored by Mining & Exploration Division, Society of Mining Engineers of the American Institute of Mining, Metallurgical and Petroleum Engineers, Inc

  • BLASTING TECHNIQUES IN HIGH PRODUCTION UNDERGROUND

    Jun 25, 2010· Sublevel stoping for high production: Sublevel stoping is one of the most important methods of choice for achieving high production rate in Underground Metalliferous mines. It is

  • Design and dimensioning of sublevel stoping for extraction

    The mine is currently operating at 1150mL using sublevel mining method for copper ore bodies extraction. It intends to descend to 1500mL. There are various critical factors that influence a safe and economic design and dimensioning of a sublevel stoping method for underground extraction of metalliferous deposit.

  • Study on Sublevel Open Stoping with Subsequent Backfilling

    This paper discusses the stope parameters of the sublevel subsequent filling stage in Daye Iron Shizishan section. According to the similar material simulation technology, which is the main means, displacement monitoring and internal stress monitoring, several conclusions are summarized as bellow: When the parameter of the room and pillar is 18m, the underground mining is safe and steady.

  • Definition of sublevel stoping - Mindat

    The sublevels are connected by a starting raise at one end of the stope and by a passageway raise for entrance to them and the stope face at the other end. Chute raises connect the haulage level to the lowest sublevel, at which the tops of the chute raises are belled out to form mill holes.

  • 8.3.3: Sublevel (Open) Stoping ABC 123: Testing Site

    The progression of the sublevel blasting is coordinated spatially from sublevel to sublevel, so that the blasted ore from a sublevel is free to fall to the bottom of the stope where it will be drawn off. Figure 8.3.9 Sublevel stoping (blasthole method) using ring drilling

  • Underground mining (hard rock) - Wikipedia

    Sub-Level Caving Subsidence reaches surface at the Ridgeway underground mine. Using this method, mining is planned to extract rock from the stopes without filling the voids; this allows the wall rocks to cave in to the extracted stope after all the ore has been removed. The stope is then sealed to

  • Application of Mathematical Programming for Stope Layout

    Sublevel stoping which also is referred to as long-hole stoping or blast-hole stoping is a vertical large-scale underground method. This method is a proper underground mining technique for wide vein-type deposits with stable host rock and competent steeply dipping ore-bodies (Haycocks et al., 1992; Lawrence, 1998).

  • Geotechnical Design for Sublevel Open Stoping

    This volume from CRC Press is published next month. It is the first comprehensive work on one of the most important underground mining methods worldwide, presenting topics according to the conventional sublevel stoping process used by most mining houses, in which a sublevel stoping geometry is chosen for a particular mining method, equipment availability, and work force experience.

  • Design and operation of caving and sublevel stoping mines

    Design and operation of caving and sublevel stoping mines [ proceedings of International Conference on Caving and Sublevel Stoping mines held in Denver, Colorado, 18-20 November, 1981] This edition was published in 1981 by Society of Mining Engineers of AIME in New York, NY.

  • Mining - Blasthole stoping Britannica

    In sublevel stoping, shorter blastholes are drilled from sublevels located at shorter vertical intervals along the vertical stope. A fairly typical layout is shown in the figure. In vertical retreat mining the stope does not take the shape of a vertical slot.

  • SUB-LEVEL OPEN STOPING: DESIGN OF THE O640, L651

    sub-level open stoping and the design process followed. The objective here is to present a design methodology applicable to sublevel open stoping, but also to then bridge the gap between theory and practice by applying said methodology to an actual design example.

  • (PDF) Sublevel Stoping Underground Mining Methods

    Sublevel stoping: configuration method in stopes where the ore is detonated by drilling a fan or parallel; large part of the ore is removed from the stope as it is being detonated, leaving open stope.

  • SubLevel Stoping - Introduction to Sublevel Stoping

    INTRODUCTION The sublevel stoping mining method is usually applied to a relatively steeply dipping, competent ore body, surrounded by competent wall rock. Ore is produced by drilling and blasting longholes, which can range from 50 mm (2 in.) to

  • 4.3.2: Underground Mining Methods ABC 123: Testing Site

    Sublevel stoping and big-hole stoping are the important variants in use today. A few examples of commodities mined by this method include iron and lead/zinc. Supported Methods. Supported methods historically included cut and fill stoping, stull stoping, and square set stoping. However, the last two are no longer used due to their extreme cost.

  • (PDF) Optimization of ring blasting in sublevel stoping

    Dec 17, 2020· A hypothesis was established and further verified with direct measurements from a comprehensive near-field vibration monitoring programme conducted at a large sublevel open stoping

  • Abstract - USGS

    Sublevel stoping, vertical crater retreat (VCR), sublevel caving, and cut-and-fill are all methods that can be applied to ore bodies where shrinkage stoping is feasible. The model is valid.for operations with daily mining capacities of 100 to 6,000 st/d. Base-case cost model

  • Sublevel Stoping: Características, Ventajas y Desventajas

    El sublevel stoping es un método de excavación que consiste en fraccionar el yacimiento en varias secciones verticales, para dejar vacía a la unidad básica de explotación minera, llamada caserón.

  • Backfill Practices for Sublevel Stoping System SpringerLink

    Sublevel stoping mining methods are generally employed to extract steeply dipping tabular ore deposits characterized by relatively long strikes and having various thicknesses. Ore is recovered from each sublevel in a planned sequence of primary and secondary stopes with delayed backfill in a manner to create a stress shadow to avoid high stress

  • Types of Underground Mining Method Comparison

    Sublevel Stoping This method, described by F. W. Sperr in the Engineering and Minting Journal of June 5, 1912, and by P. B. McDonald in the Mining and Scientific Press of July 5, 1913, is really a combination of several different methods of stoping.

  • Sublevel stoping - SlideShare

    Mar 27, 2012· Sublevel stoping 1. UNIVERSIDAD DE SANTIAGO DE CHILE FACULTAD DE INGENIERIA DEPARTAMENTO DE INGENIERIA EN MINAS TOPICOS AVANZADOS: MINERIA SUBTERRANEA* Alumnos: Juan Fuenzalida y Elizabett López Profesor: Edgar Adam Ayudante: Mauricio Cordero Fecha de Entrega: 4 de abril de 2011

  • Geotechnical Design for Sublevel Open Stoping - 1st

    Apr 01, 2014· Book Description. The first comprehensive work on one of the most important underground mining methods worldwide, Geotechnical Design for Sublevel Open Stoping presents topics according to the conventional sublevel stoping process used by most mining houses, in which a sublevel stoping geometry is chosen for a particular mining method, equipment availability, and work

  • Production scheduling optimisation for sublevel stoping

    Oct 01, 2020· Among underground mining methods, sublevel stoping are a commonly used method in large-scale mining. It is a versatile and productive method that is primarily used for steeply deeping orebodies with regular shape, defined ore boundaries and competent ore and host rock.

  • Sub-level stoping - Wassara

    In sub-level stoping, the holes are generally just a few meters apart and some of the holes are adjacent to both the foot wall and the hanging wall. If deviation occurs, it causes a decrease in ore recovery, an increased amount of dilution, and less homogenous fragmentation. In the

  • Techniques in Underground Mining - ILO Encyclopaedia

    Sublevel stoping removes ore in open stopes. Backfilling of stopes with consolidated fill after the mining allows the miners to return at a later time to recover the pillars between the stopes, enabling a very high recovery rate of the mineral deposit. Development for sublevel stoping is extensive and complex.

  • Underground Mining Methods and Equipment

    Shrinkage stoping Sublevel stoping Of the unsupported methods, room-and-pillar mining is employed for extraction of flat-dipping and tabular deposits, whereas shrinkage and sublevel stoping are applied to vertical or steeply inclined ore bodies. Shrinkage stoping has in the past been very popular, particularly in non-coal mining.

  • Geotechnical Design For Sublevel Open Stoping ebook PDF

    The first comprehensive work on one of the most important underground mining methods worldwide, Geotechnical Design for Sublevel Open Stoping presents topics according to the conventional sublevel stoping process used by most mining houses, in which a sublevel stoping geometry is chosen for a particular mining method, equipment availability, and work force experience.

  • CN105822307A - Underhand sublevel open stoping method

    The invention relates to the technical field of stoping methods and particularly relates to an underhand sublevel open stoping method. The underhand sublevel open stoping method comprises the following steps: firstly, arranging an ore block along the direction of an ore body and dividing the ore block into an ore room and an ore column; dividing the ore block into 3-5 sublevels in the vertical

  • Sublevel stoping Britannica

    In sublevel stoping, shorter blastholes are drilled from sublevels located at shorter vertical intervals along the vertical stope. A fairly typical layout is shown in the figure. In vertical retreat mining the stope does not take the shape of a vertical slot. Instead, the trough serves

  • Diagram of typical sublevel stoping, Sherwood mine

    The diagram shows longitudinal sections of typical sublevel stoping, example taken from the Sherwood Mine. The Sherwood Mine was an underground iron mine in the Menominee Range in Iron County, Michigan. The mine was operated from 1931-1975 by the Inland Steel Company. It was the last working underground iron mine in Iron County.

  • Production scheduling optimisation for sublevel stoping

    Oct 01, 2020· Among underground mining methods, sublevel stoping are a commonly used method in large-scale mining. It is a versatile and productive method that is primarily used for steeply deeping orebodies with regular shape, defined ore boundaries and competent ore and host rock.


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