What is sublevel stoping?

What is 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.

What is stoping method?

stoping, in mining engineering, the opening of large underground rooms, or stopes, by the excavation of ore. Stoping is practiced in underground mineral mining when the surrounding rock is strong enough to permit the drilling, blasting, and removal of ore without caving.

What is stope sequencing?

The stope sequencing is one of the most important tools for controlling the behaviour of the rock mass in an orebody undergoing extraction. In order to determine an appropriate extraction sequence, an iterative approach must be taken.

Why is it called a stope?

Each horizontal working is called a stope because when a number of them are in progress, each working face under attack assumes the shape of a flight of stairs.

What is sublevel caving?

Sublevel caving (SLC) is a mass mining method in which the ore is drilled and blasted while the waste rock caves and fills the space created by the extraction of ore (Cokayne 1982. 1982.

What is shrinkage stopping?

Shrinkage stoping is a vertical stoping method, conducted in a vertical or near-vertical plane, and at an angle greater than the angle of repose of the broken ore. A defining characteristic of shrinkage stoping is that most of the blasted (broken) ore remains in the stope to support the hanging wall and footwall.

How are stopes mined?

The stope provides direct access to the orebody and routes ore and waste in an underground mine. Stopes are created by drilling holes, placing explosives, and blasting open a space, which produces a stope.

What is long hole open stoping?

Long hole stoping as the name suggests uses holes drilled by a production drill to a predetermined pattern as designed by a mining engineer. Long hole stoping is a highly selective and productive method of mining and can cater for varying ore thicknesses and dips (0 – 90 degree).

What is a sublevel in mining?

Sublevel caving (SLC) is a mass mining method in which the ore is drilled and blasted while the waste rock caves and fills the space created by the extraction of ore (Cokayne 1982. 1982. Sublevel caving Chapter 1: Introduction.

What are sublevels in chemistry?

A sublevel is an energy level defined by quantum theory. In chemistry, sublevels refer to energies associated with electrons. In physics, sublevels may also refer to energies associated with the nucleus.

What is longhole stoping?

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 is a non-selective, bulk mining method.

What does sublevel mean?

Definition of sublevel : a level that is lower than or subordinate to another level a sublevel garage The 60 words were divided into nine separate groups based on grade levels and sublevels.—