Ore Mining Method Selection

12.5 mining method selection-the mining principles and methods have evolved to meet the geomechanical and operational problems of various cases.-final choice of mining method will reflect both the engineering properties of the orebody and its setting, and the engineering attributes of the various methods such as mining scale, production rate ...

First phase is the mining method selection on technical suitability to the orebody for which two methods are. the ubc method is applied first resulting in the selection of the area of sublevel stoping methods. later a new technique is introduced to optimize the mining method selection process and to control the wide spectrum of mineral deposits.

Mar 09, 2018nbsp018332selecting a mining method. selecting which mining method to use is one of the important decisions a mining company has to make. the mining method selected should maximize cost recovery and profitability of operations, minimize ore dilution, and permit the most efficient removal of ore.

The aim objective of this study is to model mining method selection problem for a real world case in angouran mine which is one of the major zinc producers in iran. according to many problems of ore body extraction are direct or indirect depend on underground mining method, this issue is one of the most critical decisions in the design stage of ...

To make mining method selection for the given ore bodies, guray et al. developed a system based on 13 different expert systems and one interface agent, in which an inexperienced user can enter the system to complete hisher missing knowledge about mining method selection .

Phosphate ores are worked by openpit and undergroundmining methods friable phosphorites, such as those in the baltic republics, are worked by geotechnological methods. various methods for concentrating phosphate ores exist, and the selection of a particular method depends on the mineral composition and the structure and texture of the ore.

Method of chrome ore mining summary. chrome beneficiation process solution for ore miningchrome ore mining process - xinhai process introduction chrome ore deposits are mined by both underground and surface techniques. most chrome ore must be processed by the chrome ore processing plants. the mainly chrome ore beneficiation method is gravity separation. so the mainly used chrome ore ...

A new mining scheme by employing the induced caving mining method to exploit hanging-wall ore-body during the transition from open pit to underground mining is proposed. the basic idea is to use the mined-out area generated by the planned mining of the hanging-wall ore-body to absorb the collapsed slope body, so as to avoid the influence of the inner-slope mining to the normal open-pit mining ...

Abstract. in order to smooth ore production during the transition from open pit to underground mining at yanqianshan iron mine, china, it is necessary to select an appropriate mining method to operate simultaneously open-pit mining and underground mining for inner-slope hanging-wall ore-body.

Underground mining method selection is one of the most important decisions that mining engineers have to make. choosing a suitable underground mining method to extract a mineral deposit is very important in terms of economics, safety and productivity of mining operations.

May 01, 2016nbsp018332online method selection tool and the mining method selection tool mmst, unza.the ubc mining method selection is a modification of the nicolas approach 1981, which places more emphasis on stoping method. according to nicolas, each mining method is ranked according to the suitability of its geometrygrade distribution and ore zone,

Ubc mining method selection see appendix ii - mining method references is a modified version of the nicholas approach for selection of mining method based on orebody characteristice refer nicholas 1981. selection involves summation and ranking of numerical values associated with orebody characteristics that reflect the suitability of a particular method.

482 1. introduction several mining method can be used to optimally extract an ore body. convention-ally, there are established two methods for mining surface and underground mining.

The strength of the ore and the surrounding rock is one of the most significant geotechnical factors in mining method selection. the strength and related stability of the rockmasses are important for all types of excavation, and are assessed using rockmass classification systems throughout a mine.

Mar 01, 2009nbsp0183322.1. studies on mining method selection. the problem of underground mining method selection has been studied in the literature. boshkov and wright 1973 proposed a classification system which was one of the first qualitative classification schemes. morrison 1976 suggested a selection chart for mining method selection.

2. bitarafan, m. and ataei, m. 2004. mining method selection by multiple criteria decision making tool. the journal of the south african institute of mining and metallurgy. 493-498. 3. alpay, s. and yavuz, m. 2007. a decision support system for underground mining method selection. new trends in applied artificial intelligence. pp. 334 ...

In the past, selection of a mining method for a new property was based primarily on operating experience at similar type deposits and on methods already in use in the district of the deposit. then, the chosen method was modified during the early years of mining as ground conditions and ore character were bet- ter understood.

With ore finely crushed, fairly dry, well mixed, and entirely free from strings and rags, and with the dividers new and exactly centering the pipe, fairly good results could be obtained by this method but as these conditions never existed in practice, and as the edges of the cutters wore rapidly, thereby moving the dividing-line back from the ...

Less ore at higher grade selecting a mining method is one of the most critical and problematic activities of mining engineering. the ultimate goal of the mining method is to maximise the profit and extraction of the mineral resources while providing a safe working environment. the selection of the mining method is a complex task considering many

The previous methods of ore selection at most of these operations were based mainly on polygonal - sectional methods of grade estimation. at all of the sites where grade control optimisation has been given a fair trial over several months of production, the use of the mp method has been consistently rewarding to the mining operations.

A method of mining whereby ore of high value is mined in such a manner as to make the low-grade ore left in the mine incapable of future profitable extraction. in other words, the best ore is selected in order to make good mill returns, leaving the low-grade ore in the mine. frequently called robbing a mine. compare with bulk mining ii.

Productivity. in surface mining applications, the esp addresses the selection of equipment to extract and haul mined material, including both waste and ore, over the lifetime of the mining pit. in this paper, we focus speci cally on the truck and loader equipment selection problem for surface mines.

In mining underground mining. the orientation, specifically the dip, of the ore body is particularly important in method selection. if the dip is greater than about 50176, then systems using gravity to move the ore can be considered. if the dip is less than about 25176, then systems using rubber-tired equipment for ore read more

The long-hole retreat mining method was selected for the narrow orebody extraction. the reasons being related to economic, ground conditions and the manpower in place, experienced with the long-hole mining method. additional factors also lead to the selection of the mining method safety, continuity of the orebody, ore recovery, and

Selection of mining method. context the selection of a mining method for a given orebody can be a challenging assignment and may need to address personal bias for or against a particular method. the selection of the mining method may also need to occur prior to the completion of desired geotechnical or ore value determinations.

The approach was based on improved grade control sampling and an ore selection method which directly incorporates both a measure of the uncertainty in knowing the true grade of selection units in the definition of ore, as well as the operating cost and revenue parameters of the mining operation. during the past four years, fssi consultants have evaluated and refined the use of this

Mining method selection is one of the most critical and problematic activities of mining engineering. the ultimate goals of mining method selection are to maximize company profit, maximize recovery of the mineral resources and provide a safe environment for the miners by selecting the method with the least problems among the feasible alternatives.

Safe working conditions, ore excavation efficiency and ore dilution are also important characteristics of a selected mining method, which significantly affect the financial effects of the applied mining method. numerous considerations indicate that the undergorund mining method selection depends on the large number of relevant factors.

The aim of this paper is to represent the solution to the problem of selecting suitable underground mining method for the mining industry. it is achieved by using two multi-attribute decision...

The system of mining method selection iscomposed subsystemsand each subsystemconsistsof itsown subsystems. for example, the operation system consists of a mining system, ore dressing system and processing system. therefore, the system of mining method selection is a large system with multiple dimensions.