A new model for open-pit production and waste-dump scheduling

Fu, Zhao; Asad, Mohammad Waqar Ali; Topal, Erkan

doi:10.1080/0305215x.2018.1476501

Cited by 29 publications

(8 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to Wang and Butler (2007) and Li et al (2016), the shortest route to the dumping point would minimise the haulage cost; however, the dumping point constantly changes its position as the dump progresses and, inevitably, at some point in time, haulage routes will be longer. Several studies addressing waste sequence optimisation using computational algorithms have been published in recent years and provide important information to understand the waste impact in block sequencing and a project's net present value (NPV) (Li et al 2012, 2013; Fu et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Establishing the quantitative and qualitative limits of the applicability of the multi-stage dumping sequence in open pit mining

Kuckartz,

Victoria,

Peroni

2022

Mining Technology: Transactions of the Institutions of Mining a

View full text Add to dashboard Cite

Environmental issues and sustainability are currently being discussed and studied in several areas of mining technology; combining these issues with improved mining operation and management is part of strategic mine planning. Waste management plays an important role in this process, as an alternative way of minimising environmental impacts and achieving more attractive economic scenarios, such as backfilling the pit. This study aimed to evaluate the application of the multi-stage dumping sequence (MSDS) in conjunction with in-pit deposition strategy for a phosphate mine providing general orientations and limits of applicability of the method. The MSDS makes use of temporary waste dumps which gives operational flexibility regarding waste management while reducing the Net Present Cost (NPC) (up to 8% in this study) compared with the traditional and sometimes untouchable rule of no re-handling approach during waste disposal.

show abstract

Section: Introductionmentioning

confidence: 99%

Establishing the quantitative and qualitative limits of the applicability of the multi-stage dumping sequence in open pit mining

Kuckartz,

Victoria,

Peroni

2022

Mining Technology: Transactions of the Institutions of Mining a

View full text Add to dashboard Cite

show abstract

“…Opportunities to minimise the cost of rehabilitation and long-term monitoring can be achieved by decreasing the size of waste dumps and ensuring there is an appropriate amount of material to encapsulate acid generating waste. For instance, modelling the haulage costs of transporting waste material to the appropriate destination and considering the impact of rehandling material to confine waste dumps during the reclamation process can help reduce costs [21].…”

Section: Introductionmentioning

confidence: 99%

“…Rimélé and Dimitrakopoulos [22] and Zuckerberg et al [23] each propose a model that opens in-pit waste dump and tailings disposal areas to minimise the footprint of expit waste. Fu et al [21] and Badiozamani and Askari-Nasab [24] define mixed integer programs that simultaneously optimise the open-pit production schedule while considering waste disposal; however, these models consider substantially smaller optimisation problems and do not account for uncertainty. Each of these methods expands on past research [25,26] that independently optimise the waste dump schedule after pre-determining the extraction sequence, leading to sub-optimal solutions.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous stochastic optimisation of an open-pit gold mining complex with waste management

Levinson

Dimitrakopoulos

2019

International Journal of Mining, Reclamation and Environment

View full text Add to dashboard Cite

Simultaneous stochastic optimisation manages risk and capitalises on the unique interactions that occur in a mining complex, where materials are transferred between mines, processors, stockpiles, and waste facilities to achieve a marketable product. Typically, when optimising the production schedule, the primary focus is to deliver valuable products to the market. However, this tends to ignore the environmental and economic impact of simplifying waste management requirements, including the storage and disposal of waste material. Stricter regulations and engineering requirements are transforming past mining practices to develop more sustainable operations. These transformations increase the financial cost of waste management and identify the requirement to integrate waste management into the production schedule. Additionally, misrepresenting the material uncertainty and variability associated with the amount of waste produced can impact, both, the stakeholders and the profitability of a mining complex. In this case study, a simultaneous stochastic optimisation approach is applied in a gold mining complex that integrates waste management into the longterm production schedule. The resulting schedule leads to a 6% increase in the net present value when compared to a conventional approach, while minimising the likelihood of deviating from production targets and ensuring permit constraints are satisfied.

show abstract

“…For better economic benefits and lower cost, inpit dumping with end-wall slope partially covered has been proven to be effective [14], with the disadvantage of extra costs when materials transferred from the uncovered zone [15,16]. e overburden management [17], dumping scheduling [18][19][20], mining depth, bottom width and inpit dumping cover height [21,22] will be the main research focus for a long time. Also, biological reclamation was brought out to keep the long term stability of overburden dump slope, with the numerical modeling analyzed to be feasible [23,24].…”

Section: Introductionmentioning

confidence: 99%

Research on Inpit Dumping Height during Tracing Mining Period between Two Adjacent Surface Coal Mines

Hong-ge

Ding

2018

Advances in Civil Engineering

View full text Add to dashboard Cite

When two adjacent surface mines are simultaneously mined in the same direction with a certain relationship of the time and space, the mining arrangement of the former mine will greatly affect the mining plan and economic benefit of subsequent surface mine. In this paper, the optimized mathematical model is established with the mining conditions and economic benefits taken into account. e minimum cost of objective function is analyzed in the condition of considering the different transportation distance with different dumping amount and secondary stripping amount. At the end of this paper a conclusion is drawn that the reasonable dumping level is determined as 1130 based on the annual planning project location and stripping amount, which will reduce the cost of production and smooth the coal mining. Moreover, it is verified by an example to be correct that the mathematical model can be used to solve similar problems of tracing mining or adjacent districts mined in surface mines.

show abstract

A new model for open-pit production and waste-dump scheduling

Cited by 29 publications

References 35 publications

Establishing the quantitative and qualitative limits of the applicability of the multi-stage dumping sequence in open pit mining

Establishing the quantitative and qualitative limits of the applicability of the multi-stage dumping sequence in open pit mining

Simultaneous stochastic optimisation of an open-pit gold mining complex with waste management

Research on Inpit Dumping Height during Tracing Mining Period between Two Adjacent Surface Coal Mines

Contact Info

Product

Resources

About