Know More

Sublevel Stoping - Know More

Drilling, blasting, and mining are carried out at different elevations in the ore block Sublevel stoping has been used in a number of Canadian operations from mining nickel in Manitoba, to gold in Ontario, to lead and zinc in the Northwest Territori...

Underground mining hard rock - Know More

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 , Only enough ore is removed from the stope to allow for drilling and ....

Sub Level Caving Free Essays - Know More

Sublevel caving techniqueSimplicity and low cost are the essence controlled drilling and blasting Sublevel caving is in many respects simple It can be used in orebodies with very different properties and it is easy to mechanize...

Types of Mining Methods Sell Side Handbook - Know More

Costs tend to vary depending on drilling and blasting designs with more costly methods leading to higher ore recovery , sublevel stoping, vertical crater retreat, sublevel caving, and cut-and-fill can be applied instead of shrinkage stoping at a relatively lower cost and with better safety in place , ranging from 250- 5/tonne Some ....

Types of Mining Methods Sell Side Handbook - Know More

Block caving is the logical step-up of sublevel caving As with sublevel caving, the ore is mined as one large stope, but instead of mining from the top, ore is mined using draw points from the bottom of the ore body...

Collins Sikanyika - Know More

Collins Sikanyika Drill and Blast Engineer at Endeavour Mining Corporation , Mine Planning Scheduling, Drilling, Blasting, Mine Plan Designing, Drill Blast Designing ,Production Operations, Budgeting and Project Management, Short and Long Term Mine Planning and Scheduling , Determination of applicability of Sublevel Caving in ,...

SECTION 10 SHRINKAGE METHODS Mike Turner , - Know More

SHRINKAGE METHODS Mike Turner Australian Mining Consultants May 2000 , introduction of hydraulic fill Sub-level stoping, cut and fill mining and sub-level caving have generally replaced shrinkage mining in Australia, Europe and Canada The , The minimum stoping width is only limited to that required for drilling operations The...

Breakage and fragmentation modelling for , - Know More

IRR Drilling Blasting 2004 Conference - Perth Breakage and fragmentation modelling for underground production blasting applications I Onederra , critical in sub level caving SLC operations, as flow has been shown to be directly linked to recovery Power, 2004...

PRELIMINARY EVALUATIONS OF SURFACE MINE , - Know More

Sublevel stoping with large-hole drilling and blasting In sublevel stoping, the drilling often can be done considerably in advance of the actual mining operation Large sections of the ore can be drilled, left in place, and blasted later as required...

Techniques in Underground Mining - Know More

Sublevel caving features a schematic layout with repetitive work procedures development drifting, long-hole drilling, charging and blasting, loading and transport that are carried out independently...

Sublevel Caving Flashcards Quizlet - Know More

Sublevel caving - ore body is divided into sublevels with fairly close spacing 25-40 ft apart - the drilling is done ahead of the blasting and several sublevels can be drilled completely before blasting and production are started...

Sublevel Stoping - Know More

Drilling and blasting is the main means of breaking the ore The method extracts ore and leaves the stope empty , Weak foot wall means distortion of operations and plans Developments The method needs a relatively comprehensive set of developments , In sublevel stoping, drilling can be done independently of the other operations Large ....

Sublevel caving draw control at the Craigmont mine , - Know More

sublevel open stopping, VCR, shrinkage, sublevel caving, cut-and-fill, block caving, longwall Selection of equipment for surface mining operations Application of outburst risk indices in the underground coal mines by sublevel caving...

sublevel caving - Know More

An overview of a wireless blasting system for use in sublevel caving operations that significantly reduces the risk posed to mine workers Sublevel cave SLC mining is breaking ore-bearing rock through blasting and drawing it out under the waste rock that is caving into the void created...

Test 1 Flashcards Underground Mine Design Flash Cards , - Know More

Longwall Mining Block and Sublevel Caving , -Typically mom and pop operations -Ore is removed and replaced by timber frame, which is filled with broken rock or sand fill -Can be applied to any shape ore body -Grade must justify high cost -Timber must be readily available , -Drifting/reinforcing, fan drilling, blasting, production ....

SUBLEVEL CAVING TECHNIQUE by Partha D Sharma - Know More

Sublevel caving techniqueSimplicity and low cost are the essence controlled drilling and blasting Sublevel caving is in many respects simple...

The Block Cave Mining Method - Know More

This report has been intended to provide a simple understanding of the block cave mining method and the production process involved This report is advocated towards a layman in block caving in view of getting an impression about the block cave mining method , and has low drilling and blasting cost some amount of blasting may ,...

Considerations for Sublevel Open Stoping - Know More

The drilling, blasting, and loading operations are performed independently, and equipment utilization is high Large outputs can be obtained with few units and limited personnel Dilution with waste rock may occur if ore boundaries are irregular or if caving occurs, but 100 of the ore within the stope usually is recovered...

v118n7a6 Draw control strategies in sublevel caving , - Know More

85961/05768 A consistent issue in sublevel caving SLC operations is the regulation of loading at the drawpoints, especially as the decision to stop...

Geol338 Mining Part Flashcards Quizlet - Know More

Geol338 Mining Part End of year exam, 2014 STUDY PLAY SURFACE MINING , Usually drilling required if initial sampling positive and yields promising assays widths Primary reasons for drilling? , SUB-LEVEL CAVING Weak walls allowed to collapse behind ore LONGWALL SHORTWALL...

An assessment of dilution in sublevel caving at Kazansi Mine - Know More

An assessment of dilution in sublevel caving , behind drilling and blasting After a lift has been completely mined, the cavity is , Underground mining operations at the Kazansi Mine are ....

Underground mining methods - Know More

4 Sublevel Stoping It is a vertical mining method in which large open stope is created within the vein, this open stope is not meant to be occupied by miners, therefore all work of drilling and blasting must be performed from sublevel within the ore block...

METHODS IN MINING BY SUBLEVEL CAVING - Know More

Dec 26, 1972 0183 32 A method in mining by sublevel caving in which in a development phase are driven haulage drifts or shafts and from said drifts or shafts are driven cross-cuts in an orebody with a spacing vertically a...

Blaster s Training Modules - Know More

Blasthole Drilling This module presents aspects of surface drilling that are important to blasting operations The purpose of drilling into rock is to provide a blasthole into which explosives can be loaded Good drilling practices include carefully...

Underground Drilling and Blasting Training DVD - Know More

Oct 23, 2012 0183 32 The aim of this new DVD is to provide workers with the critical knowledge on drilling and blasting to aid appreciation of the importance of these mining processes and their related hazards...

Improved blasting results with precise initiation , - Know More

of drilling and blasting can also be significant in key aspects of material flow, , fragmentation on flow dynamics is considered critical in sublevel caving SLC operations The effect of blasting in underground mines depends on several factors Brunton, 2009, 2010 Rustan, 2013 and initiation delay time between blast holes is ,...

An assessment of dilution in sublevel caving at , - Know More

An assessment of dilution in sublevel caving at Kazansi Mine , behind drilling and blasting After a lift has been completely mined, the cavity is , operations Sublevel caving method is ....

Drill Monitoring Systems and the Integration with , - Know More

The mining process begins with drilling and blasting activities, and these events have a significant impact on downstream processes such as loading or stripping, hauling, crushing and milling...

SUBLEVEL CAVING TECHNIQUE by Partha D Sharma - Know More

Sublevel caving techniqueSimplicity and low cost are the essence Production drilling - Slices of ore are drilled up with remote-controlled production drilling rigs...

Designing Blast Patterns Using Empirical Formulas - Know More

Information Circular 8550 Designing Blast Patterns Using Empirical Formulas A Comparison of Calculated Patterns With Plans Used in ,...