· A proposed hesitant fuzzy group preference selection index method. • A proposed imprecise compromise solution technique to decrease judgment errors. • Consideration of the last aggregation approach to prevent data loss. • Considering a case study of a sustainable mining contractor selection problem.
Methods for Equipments Selection in Surface Mining ; review. One of the principal costs in mine is related to purchase and appliion of equipment. Proper fleet selection, in a way that it secures the production needs of a mine as well as minimizes costs of production, is one of the real challenges of mine .
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.
INTRODUCTION In this paper, a numerical process for selecting a mining method, with the emphasis on underground mass mining techniques, such as caving, induced caving, and stoping, is proposed. 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.
· Abstract. One of the challenging problems for surface mining operation optimization is choosing the optimal truck and loader fleet. We refer to this problem as the equipment selection problem (ESP). In this paper, we describe the ESP in the context of surface mining and discuss related problems and appliions.
· Subsurface mining can be classified according to the type of shafts used, the method of extraction or the technique used to reach the deposit. Drift mining uses horizontal access tunnels, diagonally sloping access shafts are used by slope mining, and shaft mining uses vertical access shafts.
more correctly seen as separate but complementary aspects of the engineering method. Mine planning deals with the correct selection and coordinated operation of all the sub systems, eg. mine production capacity, workforce numbers, equipment selection, budgeting, scheduling and rehabilitation. Mine design is the appropriate engineering design
Mining method selection ... SURFACE SERVICES AND INFRASTRUCTURE .....138 Mine residue deposits: site selection .....138 Mine residue deposits: dump design .....142 APPENDIX 1: Salient factors requiring consideration in a mining project feasibility study ...
· Surface mining; Surface mining is a method of mining that involves removing the soil and the overlying rock on top of the mineral deposit. This method of mining gained popularity since the start of the 20th century, especially in North America where the majority of surface mining occurs.
Underground mining methods are the focus of this article. The selection of a mining method for an ore deposit is based on many factors that are driven by the economics and profitability of the mine for a company. These include the following: Ore grade and recovery. Cost of infrastructure.
UBC Mining Method Selection 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.
INTRODUCTION. Hamrin (1986) defines underground mining as a technique of recovering minerals from deposits below the earth's surface. Important indiors of underground mining, such as net efficiency production, excavation cost, ore losses, ore dilution and the final financial effects depend on selected and applied mining method.
· Empirical investigation and characterization of surface subsidence related to block cave mining (2013) Woo et al. International Journal of Rock Mechanics Mining Sciences PDF; Open pit or block caving? A numerical ranking method for selection (2014) RashidiNejad et al.
lecture 4 mine Lecture 4 MINE LOADING AND TRANSPORTATION f Introduction Once the rock has been fragmented it needs to be moved to its final destination which could be a waste rock muck pile or ore's stock pile to feed the processing plant. From the working face materials are loaded with the use of .
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 selection of the mining method may also need to occur prior to the completion of desired geotechnical or ore value determinations.
إذا كنت مهتما في شركتنا أو المنتجات، ترحيب لزيارة شركتنا أو المكاتب المحلية. يمكنك أيضا الحصول على الاتصال معنا من خلال الاستشارات عبر الإنترنت، وتقديم الطلب الجدول، والبريد الإلكتروني والهواتف. موظفينا يجب بكل إخلاص تقديم معلومات المنتج، تطبيق المعرفة و خدمة جيدة بالنسبة لك.
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