-
Find Us
HeNan, China
-
Online Us
24-hour service
Get A Quote
HeNan, China
24-hour service
The sublevel caving SLC mining method has evolved over the last 100 years The method was first used in the early 1900s in soft iron ore mines in Minnesota and Michigan USA Hartman and Mutmansky 2002 It represented an evolution from top slicing but was initially highly labour intensive and required heavy timber support
Traditional mining methods for hangingwall orebody include surface mining and backfill stoping method such as that in the fenghuangshan iron mine of china and the kidd creek zinccopper mine of canada the sublevel caving method such as that in the yeshan iron mine and the longshou mine of china and the sublevel open stoping and caving mining method such as that used by liu et al
Read More
Method of underground mining sublevel caving on tamakaimoana ore involves the driving of sublevel workings layerbylayer breaking of ore on potatah on tamakaimoana ore and partial release of ore after blasting each layer through the end sublevel generation the simultaneous dosed ore transport horizon floor according to the technical
Read More
Jan 01 2019 the sublevel caving slc method has been widely used in underground mines across the world especially in large and mediumsized underground metal mines because of its advantages in terms of safety mechanisation capacity low operating costs and flexibility in
Read More
The method is flexible has rapid effect and integrates advantages of a nonpillar sublevel caving method and a sublevel room stoping method and a new process is provided for recycling mediumstable and mediumthick ore bodies 238000005065 mining methods 0000 claims description 7 229910052500 inorganic minerals inorganic materials 0
Read More
Shabanie mine is a sublevel caving underground mining operation in zimbabwe historical mine data withheld for proprietary reasons for the period 19902000 indicate that buffer mineral reserves have traditionally been maintained at about 4 years with the lor in excess of 13 years however the general decline in development rates ahead of mining
Read More
Sublevel caving also allows for a slightly more selective extraction of the orebody than is attainable through block or panel caving production rates achieved in sublevel caving operations are typically lower than for block caves but higher than for stoping methods caving requirements caving is a nonselective bulk mining method
Read More
Block caving block caving is essentially the underground version of openpit mining its the only underground mining method that can reach similar production rates to surface mining operations up to over 100000 tonnes per day the method involves undermining an ore body then allowing it to collapse under its own weight
Read More
Block caving is a largescale underground mining method applicable to the extraction of lowgrade massive ore bodies with the amount of literature available on block caving this report identifies the need to provide a simple understanding of the process
Read More
Underground mining methods presents the latest principles and techniques in use today reflecting the international and diverse nature of the industry a series of mining case studies is presented covering the commodity range from iron ore to diamonds extracted by operations located in all corners of the world industry experts have contributed 77 chapters
Read More
Underground mass mining methods present several geotechnical challenges and risks inherent with block cave mining environments underground mining methods such as block panel and sublevel caving continue to be the primary choice for deeply situated massive orebodies due to the high production rates and low operating costs involved
Read More
Sublevel caving slc is classed as a cave mining method even though the energy source for breaking ore rocks is through drilling and blasting ie explosive energy in slc the overlying lowgrade or mainly waste cap rocks then naturally cave above the blasted ore rock but utilising the energy generated by induced stress and gravity to
Read More
Sublevel stoping is a commonly used method in large scale mining it is a versatile and productive method that is primarily used for large orebodies with a steep dip regular shape and defined ore boundaries there are different variations of the method depending on the shape of the orebody
Read More
Caving mining methods generally caving methods extract ore using the principle of fracturing the ore body and the rocks around it inducing breaks in the whole strata and hence drawing the manageable ore under more or less controlled conditions sublevel caving in this method the stope is divided into sublevels fairly close to each
Read More
Mining methods block caving open pit mining stoping sublevel caving surface mining underground coal case studies contact schedule demo sublevel caving industry leading optimisation tools for sublevel caving mining operations improve profit by 20 increase profit by 10 to 20 over your current mining operations multiple time
Read More
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
Read More
Other articles where sublevel caving is discussed 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
Read More
The industry perception is that sublevel caving is a dirty mining method ie high dilution and low recovery however there were several successful sublevel cave mines executed in the past the success of a sublevel cave mine is not by chance they are engineered to perform
Read More
The role of block caving although the caving mining system was initially used for shallow orebodies it has recently been applied at depths of 2km underground according to suorineni caving heights have also increased drastically from about 200m to 500m creating socalled super cavesthere is insufficient experience caving in these environments he adds which is a
Read More
Specific examples of cave mining techniques include block caving panel caving inclineddrawpoint caving cut and fill mining shrinkage stopping sublevel longhole mining roomandpillar mining and front caving cave mining is typically used to mine copper coppergold iron and molybdenum it can also be used in the extraction of kimberlite
Read More
Jun 14 2019 this mining method can be applied to numerous types of ore bodies with inclination from horizontal to vertical if ore body is narrow its inclination should be steep in order to apply the method it is desirable that ore is strong enough to minimize support requirements for sublevel drifts while surrounding rock mass should be prone to caving
Read More
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
Read More
This method is usually considered as an alternate to sublevel caving when a lower dilution method is needed and where the rock is fairly competent the production for a mine using sublevel stoping can range from 15 40 tonsemployeeshift while one stope can produce greater than 25000 tons per month
Read More
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 andor host rock the three major caving methods are longwall mining sublevel caving
Read More
Caving ie sublevel and block mining methods are v aried and versatile an d involve ca ving the ore and or the overlying rock sub sidence of the surface normally occu rs afterwar d
Read More
Jul 14 2014 this method is unlike sublevel caving in that both the ore and the rock are normally involved in the caving as in sublevel caving the caving proceeds in a columnar fashion to the surface the result is massive subsidence accompanied by the exceptionally high production rate and great areal extent characteristic of block caving 3
Read More
Sep 11 2020 block gravity caving is a bulk underground mining method which allows large lowgrade deposits to be mined underground this method involves undermining the orebody to make it collapse under its own weight into a series of chambers from which the ore extracted it is a useful technique to extend the life of large deposits previously mined by
Read More
An overview of a wireless blasting system for use in sublevel caving operations that significantly reduces the risk posed to mine workers s ublevel cave slc mining is breaking orebearing rock through blasting and drawing it out under the waste rock that is caving into the void created slc mines have the most intensive blasting process of all the mining methods as generally one or two
Read More
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
Read More
Mar 09 2018 sublevel caving 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
Read More
