7/17/2018· The mining method selected is long-hole with longitudinal retreat on panels with minimum dimensions of 20 (length) x 20 (height) metres and minimum thicknesses of 3.5 to 4.0 metres. Mineralized material will be extracted using a fleet of 14 tonne load-haul-dumps ("LHDs") and 50 tonne haul trucks using a ramp at a rate of 2600 tpd.
Machinery Used For Sub Level Open Stoping Mining Method. ... machine price minerals vibrating live chat dewatering screen for gravity separating high efficient popular solutions 08 may 2019 heap leaching for impurity removal factory price chrome iron ore spiral chute for.
longitudinal retreat mining method - samatourfr. vertical crater retreat mining method Vertical Crater Retreat Stoping as Applied at the Homestake, 28 Jul 2012, Therefore, the feasibility of applying the VCR stoping method at the Homestake Mine was explored Vertical Crater Retreat stoping is a recent innovation in large-scale underground mining
A modified Avoca method could also be utilized in some areas of the Main zone and S1 Shallow zone, instead of the more typical SLR. Modified Avoca is an alternative of longitudinal retreat mining method, which has been successfully implemented in Trevali's Caribou and Santander operations.
Underground Mining Methods and Applications Production Headframe Hans Hamrin* 1.1 INTRODUCTION Ore is an economic concept. It is defined as a concentration of minerals that can be exploited and turned into a saleable product to generate a financially acceptable profit under existing economic conditions. The definition of ore calls for ...
10/23/2014· Caving Underground Mining Methods (longwall, Sublevel caving, & Block caving) 1. This material is intended for use in lectures, presentations and as handouts to students, and is provided in Power point format so as to allow customization for the individual needs of course instructors.
Retreat mining (below) is an example of a process like this. Retreat mining. Retreat mining is often the final stage of room and pillar mining. Once a deposit has been exhausted using this method, the pillars that were left behind initially are removed, or "pulled", retreating back towards the mine's entrance.
This course refers to the generic mining method of sublevel stoping. The most commonly used sublevel stoping mining methods are sublevel open stoping, long-hole open stoping or blasthole stoping, and vertical crater retreat (VCR). Variations of this method include vein (Alimak) mining, transverse stoping, Avoca and longitudinal mining.
The broken ore is mucked out by drawpoints or by longitudinal retreat. In order to prevent inbreak of the walls, large size deposits are often divided into many separate stopes by pillars. These pillars may be horizontal or vertical and are in certain cases, recuperated when all the ore has been extracted.
1/22/2020· The primary mining method for the Çayeli orebody is retreat transverse and longitudinal longhole stoping with paste fill and loose or consolidated waste rock backfill application. The stopes are mined in primary, secondary, and tertiary sequencing. The primary and secondary stopes are mined as transverse and the tertiary as longitudinal stopes.
Room and Pillar Mining Method 1. Hassan Z. Harraz [email protected] 2014- 2015 This material is intended for use in lectures, presentations and as handouts to students, and is provided in Power point format so as to allow customization for the individual needs of course instructors.
A stope stability assessment was completed using the Mathews Method based on the initial stope dimensions for transverse (15-60 m by 20 m by 30 m high) and longitudinal (5-15 m by 60 m by 30 m high) longhole mining as proposed in the AMEC Scoping Study.
Shrinkage stoping may be termed a " classic" mining method, having been perhaps the most popular mining method for mos t of the past century . It has largely been replaced by mechaniz ed ...
Design of Stoping Parameters and Support System for Longhole Stoping Method Using Numerical Modelling Technique be grouted at a spacing(S p ) of 2.0 m between two consecutive rows in …
longitudinal retreat mining method Crusher, quarry, mining . Narrow vein and low profile mining1.41 Мб Mining methods applied have also ranged from timber square setts, conventional cut-and-fill (CAF), shrinkage stoping, sublevel caving, mechanised CAF, longitudinal and transverse open . Get Price
Mining Method(s): Longitudinal retreat with cemented rock or paste backfill, and transverse open stoping with cemented rock backfill, paste or unconsolidated backfill. Processing Method(s) : LaRonde mineral processing complex, which includes copper and …
Sublevel Caving Mining Method - Newtrax Technologies Inc. ... The deposits may be tabular in form, dipping at angles steeper than the angle of repose of the . Sub Level Caving Free Essays - PhDessay. 7. Experience from LKAB, Sweden – Sub-level caving (SLC) is an important mass mining method, used at LKAB. The caved rock or debris at the SLC ...
The mining method mostly used is a transverse primary and secondary longhole method. Usually, the development is done two years in advance of the production schedule. Therefore, when narrower areas are encountered in these sectors, the mining method generally used to recover these stopes is the longhole retreat method.
Longitudinal Retreat Mining Method. Retreat mining. Retreat mining is often the final stage of room and pillar mining. Get Price And Support Online LongholeWelcome to the Narrow-Vein Mining Project. Mining Methods. General . This method consists in a variety of chambers where the mine . The broken ore is mucked out by drawpoints or by ...
The mining method selected is determined by the size shape orientation and type of orebody to be mined. The orebody can be narrow vein such as a gold mine in the Witwatersrand the orebody can be massive similar to the Olympic Dam mine South Australia or Cadia-Ridgeway Mine New South Wales.The width or size of the orebody is determined by the ...
Geotechnical aspects of vertical crater mining method in a . Vertical Crater Retreat is compared to other open stoping methods. Various geotechnical factors have been considered including the effects of stress concentration, jointing, dynamic stresses superimposed by blasting vibrations, amount of development required and shrinkage draw.
Vertical block mining is the term most often used for this method. In VBM the workplace is divided into a series of vertical blocks and the blocks may be nined on a retreat basis working from the ends of the workplace. This may be repeated on several different horizons in an extensive VBM area. VBM Design
Title: Effect of delayed backfill on open stope mining methods: Creator: Caceres Doerner, Cristian Andres: Date Issued: 2005: Description: Open stoping is comprised of large rectangular voids separated by intervening pillars so as to minimize the size of the exposed surface and thereby reducing the potential for wall slough and in turn external dilution.
For an introduction to metals and mining, please read the following sections for an overview to the industry: Metals & Mining Basic Materials Selecting a Mining Method Selecting which mining method to use is one of the important decisions a mining company has to make. The mining method selected should maximize cost recovery and profitability...