WhatsApp)
Sublevel Caving Sublevel caving is usually carried out when mining of the orebody through an open pit method is no longer economically feasible. Mining now proceeds underground, underneath the open pit. At first, both a raise and a network of tunnels are made.
Sublevel caving is usually carried out when mining of the orebody through an open pit method is no longer economically feasible. Mining now proceeds underground, underneath the open pit.
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. In sublevel caving, ore is developed from a series of sublevels spaced at regular intervals throughout the orebody.
Sublevel caving QueensMineDesignWiki
Caving Underground Mining Methods (longwall, Sublevel caving, amp; 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.
#0183;#32;method of underground mining. 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.
Sublevel caving is a systematic method and uses regular layouts and working procedures. Development, production drilling and loading are carried out on separate levels, all independent of each other. Also, a number of faces are always available for production.
3. Description of sublevel caving method An underground mining method used in large, steeply dipping orebodies where the wall rock is of an incompetent nature. Parallel drives are developed in the ore on equally spaced levels. The ore is then drilled and blasted using longholes between levels, often in a circular or fan pattern, on retreat.
#0183;#32;Caving Underground Mining Methods (longwall, Sublevel caving, amp; 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.
There are several variants of the sublevel caving mining method among which variant applied in Kiruna mine in Sweden is best known. This mining method can be applied to numerous types of ore bodies with inclination from horizontal to vertical. If ore body is narrow its
#0183;#32;Sublevel caving is a largescale mining method, suitable for large ore bodies with a steep dip. The setup is similar to longhole stoping except loft raises are not required. Also, mining starts at the top of the ore body and progresses downwards in a safe sequence.
Caving methods are defined as those associated w ith induced, controlled, massive caving of the ore body, the overlying rock, or both. Th e exploitation workings in caving methods are designed to collapse, with intentional caving of the ore and/or host rock. The three major caving methods are: Longwall mining Sublevel caving
SUBLEVEL CAVING. General Details of the Mine. 1. High strata: 30100 m 2. Mineral: Calcite 3. Inclination of strata: 40#186; maximum Tools for Suitable Mining Method Selection Hartman (1987) Tools for Suitable Mining Method Selection Nicholas Perico Euskadi Mine: General Shape: Tabular Ore Thickness: 30100 m Ore Plunge: 40 degree Grade Distribution: Uniform Depth: 100 m RCD: Calcite
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. In sublevel caving, ore is developed from a series of sublevels spaced at regular intervals throughout the orebody.
Sublevel caving (SLC) is a mass mining method based upon the utilisation of gravity ow of blasted ore and caved waste rock [1]. The method functions on the principle that ore is fragmented by blasting, while the overlying host rock fractures and caves under the action of
Table of ContentsFactors Affecting Choice of MethodReview of Stoping MethodsUnderhand Stoping Mining MethodOverhand Stoping MethodLongitudinal Back, FlatBack Mining MethodLongWall StopingmMining MethodRillCut Stoping MiningSawTooth Back StopingShrinkage StopingMining by Combination StopingSide StopingBreast StopingSublevel StopingSquareSet StopingFilling MethodsCaving Methods
Schematic layout for sublevel caving (after Hamrin, 1982) DEFINITION: A mining method which is applicable to low grade near vertical metallic or nonmetallic deposits. Mining progresses downwards while the ore between sublevels is broken overhand with long hole uppers (fan holes).
WhatsApp)