stope and pillar mining

Pillar behaviour and seismicity in platinum mines

within the pillar. Plots of seismicity and mining within a finite time window of may incorrectly appear to have occurred ... Consider three states of a pillar-stope configuration at each on-reef element, namely before any mining, and the states immediately before ...

Free Quote

Mining - Underground mining | Britannica.com

Mining - Underground mining: When any ore body lies a considerable distance below the surface, the amount of waste that has to be removed in order to uncover the ore through surface mining becomes prohibitive, and underground techniques must be considered.

Free Quote

Mining operation: Cut and Fill Stoping - YouTube

This feature is not available right now. Please try again later.

Free Quote

Rib pillar design in open stope mining - ResearchGate | Share and discover research

ROCK MECHANICS Rib pillar design in open stope mining Y. Potvin, M. Hudyma and H.D.S. Miller The University of British Columbia ABSTRACT This paper introduces a new approach for the design ofrib pillars. The approach involves an empirical methodfor pillar

Free Quote

SECTION 10 SHRINKAGE METHODS Mike Turner Australian Mining Consultants May 2000

Mike Turner Australian Mining Consultants May 2000 Australian Centre for Geomechanics Underground Mining Methods ... which leads to stope drilling difficulties and a requirement for timber platform construction. Australian Centre for Geomechanics 10.1.2.1 ...

Free Quote

In -stope pillar scaling and fracturing in Southern African deep level gold mines

In -stope pillar scaling and fracturing in Southern African deep level gold mines Zvarivadza, T. 1, Sengani, F. 1, Adoko, A.C. 2 1School of Mining Engineering, University of the Witwatersrand, Joh annesburg, South Africa 2School of Mining and Geosciences ...

Free Quote

Pillar Strength in Underground Stone Mines in the United States

Pillar strength in underground stone mines in the United States G.S. Esterhuizen n, n Corresponding author. ... Stone mines in the Eastern and Midwestern United States make use of the room-and-pillar method of mining to extract relatively flat-laying ...

Free Quote

Stoping - Wikipedia

Room and pillar is a type of breast stoping. Timbered-stope systems Stull stoping Stull stoping is a form of stoping used in ... The slot is often the most difficult, costly and highest risk component of mining a stope. Depending on the shape, height and other ...

Free Quote

Underground Mining Methods and Applications - ufrgs

Underground Mining Methods and Applications Production Headframe Hans Hamrin* 1.1 INTRODUCTION Ore is an economic concept. ... the possibility of modifying the stope layout and adapting the post-pillar method to variations in rock conditions and ore ...

Free Quote

stope and pillar mining

stope and pillar mining - pcclas.org Stope-and-pillar mining - ProZ.com. Stope-and-pillar mining (a stope is a production opening in a metal mine) is a similar method used in non-coal mines where thicker, more irregular ore bodies occur ... Contact Supplier

Free Quote

Design methods for stopes and sill pillars with application to the Zinkg ruvan Mine, central Sweden

Three types of pillar structures in cut-and-fill and open stope mining: stope roofs (left), sill pillars (middle) and benches (right) Design Methods for Stopes and Sill Pillars 255 ...

Free Quote

Underground mining (hard rock) - Wikipedia

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 prevent access. Stope and fill Where large bulk ...

Free Quote

Australian Centre for Geomechanics | Conference Paper: Geotechnical approach to stope and pillar optimisation at Granny Smith Mine

Keywords: Citation: Machuca, L, Sutton, M, Grow, R & Andrews, P 2015, 'Geotechnical approach to stope and pillar optimisation at Granny Smith Mine', in Y Potvin (ed.), Proceedings of the International Seminar on Design Methods in Underground Mining ...

Free Quote

stope and pillar mining - Newest Crusher, Grinding Mill, Mobile Crusher Plant For Quarry,Mining,Construction,From SAM Manufacturer

stope and pillar mining - Crusher|Granite Crusher|Feldspar … This page is provide professional stope and pillar mining information for you, we have livechat to answer you ... Stoping - Wikipedia, the free encyclopedia As mining progresses the stope is often ...

Free Quote

The implementation of mechanized breast mining and the development of XLP equipment

and pillar mining has a relatively large number of faces and moving equipment from one short face to another ... The implementation of mechanized breast mining and the development of XLP equipment. Third International Platinum Conference 'Platinum in ...

Free Quote

Hard-rock room and pillar - QueensMineDesignWiki

Background Room and pillar is one of the oldest existing mining methods, dating back over 1000 years. In its early use, detailed stope planning was very uncommon and mine operators would typically follow apparent high grade areas, leaving pillars only when ...

Free Quote

Stope and Pillar

Prosentase bijih sebagai pillar tergantung pada: 1) Karakter atap: menentukan jarak antara pillar. 2) Karakter lantai: menentukan jarak antara pillar. 2. Ketebalan tidak lebih dari 7 meter. 3. Ketebalan diatas 7 meter akan mengakibatkan mining recovery semakin kecil dan bahaya runtuhan atap. 4

Free Quote

Underground Mining Methods and Equipment - ENCYCLOPEDIA OF LIFE SUPPORT SYSTEMS (EOLSS)

Keywords: Mining method, underground mining, room-and-pillar mining, sublevel stoping, cut-and-fill, longwall mining, sublevel caving, block caving, backfill, ...

Free Quote

De-stress blasting strategy for mining in highly stressed sill pillars at Vale's Sudbury mines – Two Case Studies

mining of the 9631 stope in the crown pillar area Destress blast on Sep 21, 2015 Instrumentation Results - stress drop associated with major de-stressing blast • There were no major magnitude seismic events untill the crown blast in the stope. - stress change ...

Free Quote

Lecture 4: Underground Mining - Share and Discover Knowledge on LinkedIn SlideShare

Underground mining: room-and-pillar mining of thick seams –"Benching" Different approaches allow either the top or bottom part of the seam to be mined out first. ...

Free Quote

Stope | mining | Britannica.com

Other articles where Stope is discussed: mining: Underground mining: …of extracting ore are called stopes or rooms. There are two steps involved in stoping. The first is development—that is, preparing the ore blocks for mining—and the second is production, or ...

Free Quote

1994 Underground metal mine crown pillar stability analysis

ABSTRACT The open stope mining method is the most common underground extractive technique used in Australian metalliferous mines. The crown pillar as it stands in the vertical plane between two open stopes is an integral part of the global stability of an ...

Free Quote

Assessment of stope sequence alternatives in a diminishing ore pillar

Assessment of stope sequence alternatives in a diminishing ore pillar S Shnorhokian et al. 472 Deep Mining 2014, Sudbury, Canada McKinnon 2006; Mercer & Bawden 2005a, b) such as seismic data analysis, statistical analysis, triggered seismicity, and ...

Free Quote

Stope pillar | Article about stope pillar by The Free Dictionary

Find out information about stope pillar. An ore column left in place to support the stope Explanation of stope pillar Stope pillar | Article about stope pillar by The Free Dictionary https://encyclopedia2.thefreedictionary.com/stope+pillar Printer Friendly

Free Quote

Similar simulation experimental investigation on the deformation and failure character of the stope pillar of gently inclined and medium thick ...

Based on the gently inclined medium thick phosphate rock of the deep part of the east mining section of +2150 level of Jinning-Six mine of Yunnan phosphate ... Similar simulation experimental investigation on the deformation and failure character of the stope pillar ...

Free Quote