What is the difference between vertical and vertical mining method of pillarless sublevel caving

What is the difference between vertical and vertical mining method of pillarless sublevel caving

A new diversion drawing technique for controlling ore loss and dilution

the main feature of this method is that the blasted ore which is surrounded by the overlying waste rock is drawn from drifts 3 the overlying host rock is caved under the action of mine induced stresses and gravity and then fills the void created by ore extraction 2 conventionally the blasted ore directly contacts with the caved rock during …

Underground hard rock mining Wikipedia

The dip of the orebody also has an influence on the mining method for example a narrow horizontal vein orebody will be mined by room and pillar or a longwall method whereas a vertical narrow vein orebody will be mined by an open stoping or cut and fill method

SUBLEVEL CAVING TECHNIQUE by Partha D Sharma Issuu

Sublevel caving extracts the ore via sublevels which are developed in the orebody at regular vertical spacing Each sublevel features systematic layout with parallel drifts along or

Types of Mining Methods Sell Side Handbook

The only difference is that a portion of the ore body is undercut and blasted at start up such that caving propagates both horizontally and vertically The advantage of panel caving is that it requires less capital prior to commencement of production

What every mining professional needs to know about block caving

Touted as the deep mining method of the future block caving is an underground mass mining method that allows for the bulk extraction of large relatively lower grade ore deposits that are vertical in orientation The method is an attractive alternative when planning to develop a new mine or to extend the life of an open pit operation

What is caving in mining

What is the difference between block caving and sublevel caving Sub level caving also allows for a slightly more selective extraction of the orebody than is attainable through block or panel caving Production rates achieved in sub level caving operations are typically lower than for block caves but higher than for stoping methods Caving

Sublevel caving QueensMineDesignWiki

Sublevel Caving is one of the most advanced mining methods This method is usually undertaken when mining the orebody through an open pit is no longer economically viable In Sublevel Caving mining starts at the top of the orebody and develops downwards Ore is mined from sublevels spaced at regular intervals throughout the deposit

Digging deeper Mining methods explained Anglo American

The entry from the surface to an underground mine may be through a horizontal or vertical tunnel known as an adit shaft or decline Underground mining is practical when The ore body is too deep to mine profitably by open pit The grades or quality of the orebody are high enough to cover costs

PDF Michel Melo et al Mining

a stable open stope in mines using the Sublevel Stoping Mining method The pres differences between his methodology and Mathews original proposal is the absence of Jw factor This absence was

Structural Parameter Optimization for Large Spacing Sublevel Caving in

According to the actual situation of the mine at the level of −500 −570 m the sublevel height H is m that is a = m and the access width p = m through the industrial experiment eccentricity ε b = ε c = These values are substituted in Equations 6 and 7 to yield b = m and c = m

sublevel caving Britannica

In mining Sublevel caving This method owes the first part of its name to the fact that work is carried out on many intermediate levels that is sublevels between the main levels The second half of the name derives from the caving of the hanging wall and… Read More Home Technology Industry mining External Websites

SubLevel Stoping Introduction to Sublevel Stoping OneMine

INTRODUCTION The sublevel stoping mining method is usually applied to a relatively steeply dipping competent ore body surrounded by competent wall rock Slotting A slot or other space for rock expansion is necessary in conventional sublevel stoping where vertical rings or rows of holes are blasted The slot can be started at a slot raise

Possible variations of sublevel caving method in order to improve the

Possible variations of sublevel caving method in order to improve the effects of mining Mining and Metallurgy Engineering Bor /mmeb1402061k = Comparative optimization of mining the Kraku Bugaresku Cementation deposit using Whittle and NPV Scheduler software 2024 •

sublevel caving mining method

Sublevel Caving Mining Method Newtrax Technologies Inc The ore body is developed by a series of sublevels usually spaced at vertical intervals of 18 to 25 or 30 feet more recently intervals of 50 feet or more have been What is the difference between sublevel stopping and For sublevel stoping the ore body and walls should be

PDF Design and Operational Issues for Increasing Sublevel Cave Intervals at

for the 3 1 rn sublevel intervals The vertical flow component is primarily influenced by steep ring gradients and wide drawpoints The geometrical and operational parameters hvo lved with the sublevel cave mining process should promote rnaximizing both these parameters Results from the underground operatioos conciuded that fragmentation is of key

Methods in Mining by Sublevel Caving Harry Kristoffersson

The present invention relates to a method in mining by sublevel caving in which in a development phase on one side of the orebody to be mined the haulage wall side or in case of an inclined orebody preferably the foot wall side are driven haulage drifts or shafts for example haulageways inclined relative to the horizontal plane and from said drifts or shafts are driven cross cuts

Applied Sciences Free Full Text Numerical Investigation of MDPI

Slope failure induced by sublevel caving mining is a progressive process resulting in the large deformation and displacement of rock masses in the slope Numerical methods are widely used to investigate the above phenomenon However conventional numerical methods have difficulties when simulating the process of progressive slope failure For example the discrete element method DEM for

Types of Underground Mining Method Comparison

This is an extreme of combination stoping in which the working face of the stope is vertical The face is parallel to the raises just as the face in flat back stoping is parallel to the levels Breast Stoping Breast stoping refers to the working of a flat orebody or a flat section of an orebody just as coal is mined from a flat coal seam

Vertical crater retreat QueensMineDesignWiki

VCR is a suitable mining method for orebodies that exhibit the following characteristics Advantages Safety Miners are working in drifts that are adequately ventilated and have fully supported roofs Furthermore no workers are required to work inside the stope minimizing the risk of unexpected injuries

Pillarless sublevel caving method based vertical partitioning and

The present invention discloses a method for non technical measures the gently inclined ore mining conditions pillar sublevel caving method method which vertical partitioning ore in combination and a disk replenish residual caving full coverage by the other to solve SUBLEVEL the sublevel caving ore under conditions effective gently inclined segment mining ore triangular vertical plate

Combined Finite Discrete Element Modelling of Dynamic Rock Hindawi

A combined finite discrete element method FDEM is proposed to model the dynamic fracture fragmentation and resultant muck piling process during mining production by blast in underground mine The key component of the proposed method that is transition from continuum to discontinuum through fracture and fragmentation is introduced in detail which makes the proposed method superior to

Block caving method SlideShare

Block caving is the mining method in which masses panels or blocks of ore are undercut to induce caving permitting the broken ore to be drawn off below If the deposit is overlain by capping or bounded by drawing the ore This method is unlike sublevel caving in that both the ore and the rock are normally involved in the caving

Definition of sublevel caving

A stoping method in which relatively thin blocks of ore are caused to cave by successively undermining small panels The ore deposit is developed by a series of sublevels spaced at vertical intervals of 18 to 25 ft or 30 ft to m or m and occasionally more Usually only one or two sublevels are developed at a time beginning at the

What is sublevel stoping mining method

What is the difference between block caving and sublevel caving Sub level caving also allows for a slightly more selective extraction of the orebody than is attainable through block or panel caving Production rates achieved in sub level caving operations are typically lower than for block caves but higher than for stoping methods

sublevel caving mining method

What is the difference between sublevel stopping and Know More Mining starts at the top of the ore body and progresses downwards in a safe sequence Sublevel Caving is a productive mining method where all of the ore is fragmented by blasting and the host rock in the hanging wall of the ore body

Caving mining method

When the top and bottom columns are recovered by the sub column sublevel caving method they can be recovered together with the inter column Copper Mountain copper mine official contact with hydrothermal metasomatic skarn copper pyrite deposit The ore body is like a layered output the upper part is relatively large and the deep part is gradually narrowed and branched and the thickness of

02 Metode Tambang Bawah Tanah PDF Mining Minerals

Sublevel stoping vertical retreat stoping sublevel accessed through loading drifts at regular spacings caving and cut and fill mining are methods that usually can be Developing the set of drifts and drawpoints underneath the applied under similar conditions stope is an extensive and costly procedure

Mining Methods Block Caving Geology for Investors

Block caving is achieved by undercutting the ore body and inducing gravity to drop the ore into collection points Block Gravity Caving diagram showing the undercut Grizzly and main haulage levels Note the numerous shafts connecting the levels From Hardwick IC 8271 1965 First a grizzly level and haulage tunnel are put in below

What is sublevel stoping mining method

What is VCR method Vertical crater retreat VCR also known as Vertical retreat mining is an open stoping bottom up mining method that involves vertically drilling large diameter holes into the orebody from the top and then blasting horizontal slices of the orebody into an undercut

sublevel caving in Hindi sublevel caving meaning in Hindi

1 The mine produces copper and cobalt from three sources Mindola Shaft Central Shaft and South Orebody Shaft Vertical crater retreat is the predominant mining method while sublevel open stopping and sublevel caving methods are also used

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