Optimization of open-pit mine design and production …
Open-pit mining plans include implementing operations throughout the entire life of the mine. In addition to geometric and geotechnical constraints, it is important to ensure an uninterrupted ore feed by optimizing production plan. In order to achieve this and at the same time maximize the net present value, the most well-known method is …
(PDF) Open-Pit Mine Production Optimization: A Review of …
Open pit mines operation costs highly depends on material handling. 50 to 60 percent of operating costs in an open pit mine is spent on digging and transporting the material.
(PDF) Open Pit Optimization -Strategies for Improving Economics …
The open pit design and scheduling problem is a large-scale optimization problem that has attracted considerable attention during the last 40 years The development of the "know-how" to improve economics of open pit mining projects through the use of mathematical optimization techniques goes back to early 1960's.
Forecasting mining capital cost for open-pit mining …
open-pit copper mining projects. In mining projects, production capa-city was considered as the most critical factor for capital cost estimation (Dagdelen, 2001; Hustrulid et al., 2013b). Based on production capa-city, equipment capital cost can be calculated. According to Long (2011), capacity should be used to estimate capital cost …
Enumeration optimization of open pit production scheduling …
The research shows that the open pit mine production scheduling optimization algorithm proposed in this article can not only realize the simultaneous …
Cutoff grades optimization in open pit mines using meta …
Semantic Scholar extracted view of "Cutoff grades optimization in open pit mines using meta-heuristic algorithms" by M. Ahmadi et al. ... Developing a novel artificial intelligence model to estimate the capital cost of mining projects using deep neural network-based ant colony optimization algorithm. Hong Zhang Hoang Nguyen +6 …
Hybrid Model for Uncertainty Assessment in Open Pit Optimization
The results of applying the proposed method to the copper-zinc deposits showed that significant uncertainty exists in open pit optimization results due to the variation in copper prices.
Direct Net Present Value Open Pit Optimisation with
Optimization of Economic Indicators in Open-Pit Mining ... To overcome the inadequacy of undiscounted pay-offs in commonly used algorithms for open pit optimisation, it is proposed to embed a scheduling heuristic within an open pit optimisation algorithm. ... the capital cost, which could also be modelled stochastically, was not …
Developing a novel artificial intelligence model to estimate …
This study aims to propose a novel artificial intelligence model for forecasting the capital cost (CC) of open-pit mining projects with high accuracy. It is a unique combination of a deep neural network (DNN) and ant colony optimization (ACO) algorithm, abbreviated as ACO-DNN.
Open pit stochastic optimization with in-pit tailings storage
The tailings management component of the case study integrates a capital expenditure investment option to expand the existing tailings storage facility, evaluating its feasibility within the simultaneous stochastic optimisation framework. ... 0711–2440 Open pit stochastic optimization with in-pit tailings storage A. Rimélé, M. Gamache, R ...
Managing risk and waste mining in long-term production scheduling of
A long-term mine production schedule optimization based on stochastic integer programming (SIP) is presented that manages the risk due to geological variability and uncertainty while jointly considering mine profitability, truck fleet requirements, and …
Mine Design of Laterite Nickel Ore Based on Pit Limit …
Pit optimization determines the shape of the pit that is most likely to obtain the largest total recovery value (Whittle and Rozman, 1991). If optimization is a process, then the result of pit optimization is a pit that has become more effective and has advantages (Gusman and Octova, 2018). The floating or moving cone algorithm is one of the
Enumeration optimization of open pit production …
The production scheduling optimization of open pit mines needs to determine parameters including economic parameters (mining cost, processing cost, stripping cost, concentrate price ...
Forecasting mining capital cost for open-pit mining projects …
Mining capital cost (MCC) is one of the essential criteria for assessing the feasibility of an open-pit mine (or underground mine). The MCC heavily influences the net present value (NPV) of the projects over the lifetime of the mine.
Ultimate pit optimization with environmental problem for open-pit …
According to the flow chart, an initial ultimate pit is optimized by the original unit costs (without ecological costs). The original unit costs are 1.79 US$/t and 2.39 US$/m 3, respectively, for coal mining and rock removal.The initial ultimate pit is obtained in traditional way, which takes the maximum economic benefit as the objective function …
CUT-OFF GRADE OPTIMIZATION OF OPEN PIT MINES …
hypothetical case study examined in this thesis reveal that a low-grade open pit gold mine will benefit from the use of multiple processing streams when a dynamic cut-off policy is …
Capital Cost Used In Open Pit Optimization
Jun 03, 2015 One of the first steps in open pit mine design is the pit optimization analysis Pit optimization is used to define the most profitable pit shell (or nested pit shells) for a given capital cost used in open pit optimization delicesgascon82 The KS open pit was used for waste rock and tailings storage towards the end of the KS ...
(PDF) Optimization of Open Pit Mining under Surpac and …
Optimization of Open Pit Mining under Surpac and Whittle-Application to the Ruashi II and III Deposits. ... 7000 $ Selling cost 2000 $ Capital cost 100 000 000 $ Discount rate 0.1 Mining recovery 0.86 Mining dilution 0.15 Revenue factor range 0.3 to 2 at 0.02 steps Overall pit slope angle 36 ° a) First project: family of pits with the price of ...
Mining capital cost estimation using Support Vector
To establish the fundamental principle of this model, in the beginning, capital cost data of the 52 open pit porphyry copper mine were stored in a database. Section snippets Literature review. ... open pit mining methods, open pit optimization techniques, mine closure, reclamation, and mine sustainable development. Professor Osanloo …
A Stochastic Optimization Formulation for the Transition from Open-Pit …
It is important to also recall that the capital cost required to develop the underground component of the mine considered is contingent on the transition depth, as this will influence the development schemes. ... Goodfellow R (2014) Unified modeling and simultaneous optimization of open pit mining complexes with supply uncertainty, Ph.D. …
Forecasting mining capital cost for open-pit mining …
Developed an ANN model for estimating mining capital cost for open-pit mining projects with high accuracy. ... (NPV) of the projects over the lifetime of the mine. In open-pit mining, optimization issues in designing and mining planning have been made (e.g. Ahmadi and Shahabi, 2018; Dimitrakopoulos et al., ...
Design of an open-pit gold mine by optimal pitwall profiles
Flow chart illustrating how OptimalSlope interacts with Datamine to perform a pit optimization. From top to bottom: (1) OptimalSlope produces the optimal slope profile for the ultimate pit limit ...
Pit Optimization for Improved NPV and Life of Mine in
The pit optimization for iron ore mine has been carried out successfully using Whittle Software to identify the optimal pit shell across a range of selling prices as …
Ultimate Pit Limit Optimization Methods in Open Pit Mines: …
This paper reviews and documents some methods used in ultimate pit limit optimization and gives a clear insight of these algorithms, their functionalities and …
Ultimate Pit Limit Optimization Methods in Open Pit …
Abstract Ultimate pit limit optimization plays a major role in the mining industry as it serves as the elementary foundation of all the activities in mine planning. This paper reviews and documents some methods used in ultimate pit limit optimization and gives a clear insight of these algorithms, their functionalities and limitations to open up …
Strategic mining options optimization: Open pit mining, …
The optimization study was based on three scenarios namely: (i) open pit mining only (OP); (ii) open stope mining only (OS); and (iii) concurrent open pit and …
A stochastic optimization formulation for the transition from open pit …
capital cost for development and potential delays in production but can provide. ... Global optimization of open pit mining complexes with. uncertainty. Appl Soft Comput J 40(C):292–304. doi: ...
Pit Optimization | AllMinings
Pit optimization is a crucial process that aims to determine the profitable way to extract minerals or resources from a deposit. ... The discount rate is typically based on the project's cost of capital or a similar financial metric. ... The stripping ratio is a fundamental concept in open-pit mining and refers to the ratio of waste material ...
Micromine setting the standard in Pit Optimisation
Pit optimisation is a vitally important part of the mining process and is often one of the first steps carried out by engineers in open pit mine design. A pit optimisation analysis is conducted to determine the most profitable open pit design, given a mineral resource and a set of economic and metallurgical parameters.
A stochastic optimization formulation for the transition from open pit …
A stochastic optimization formulation for the transition from open pit to underground mining James A. L. MacNeil 1 • Roussos G. Dimitrakopoulos 1,2 Received: 27 December 2015 / Revised: 31 January 2017 / Accepted: 27 May 2017 Ó The Author(s) 2017. This article is an open access publication Abstract As open pit mining of a mineral deposit …