Optimization of open pit mine production scheduling with in-pit waste disposal

露天矿生产调度与坑内废物处理的优化

• 批准号: 538085-2019
• 负责人: Pourrahimian, Yashar
• 金额: $ 1.82万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=681012
• 关键词: Optimization; open; pit; mine; production

The Canadian mining industry is one of the fastest growing sectors in North America. The revenue obtained from the energy and mining sector helps the government to support critical social programs such as health care, education, and public pensions. Canada has a global responsibility to develop and utilize its mineral resources sustainably and optimally.Open pit mining operations impact their local environment in terms of their modification of the landscape and local ecosystems. External stockpiles and waste dumps occupy considerable space as well as involve substantial transportation costs. An option that can be taken is to store waste material directly into the free areas inside the pit, during the operations, in a way that it does not affect a lot the production.The primary goal of this research is proposing an approach using mathematical programming that aims to optimize the production schedule in a way that waste material is disposed inside the mined out area of the pit based on the geometry of the deposit. The consequences of considering the in-pit waste disposal are (i) limiting environmental impacts, (ii) accounting for constraints in available space surrounding the pit, and (iii) reducing the cost of waste transport and rehabilitation.During this project, we will develop a theoretical framework using mathematical programming, to optimize the production schedule and waste material disposal inside the mined out area of the pit. We will test, calibrate and verify the formulations and analyze the results. In this project, the expert knowledge of the industrial partner will be combined with the university researcher's expertise to build a creative group to achieve the best results.This research will provide detailed training on topic and will include as its primary deliverable an optimization formulation and relevant computer codes that can be applied in the open pit production scheduling.

加拿大采矿业是北美增长最快的行业之一。从能源和采矿业获得的收入有助于政府支持医疗保健、教育和公共养老金等重要的社会项目。加拿大负有可持续、最佳地开发和利用其矿产资源的全球责任。露天采矿作业通过改变地貌和当地生态系统来影响当地环境。外部库存和废物堆放场占据相当大的空间并且涉及大量的运输成本。可以采取的一种选择是在操作过程中将废料直接储存到坑内的空闲区域，这样不会对生产产生太大影响。这项研究的主要目标是提出一种使用数学编程的方法其目的是优化生产计划，根据矿床的几何形状将废料处理在矿坑的采空区域内。考虑坑内废物处置的后果是（i）限制环境影响，（ii）考虑坑周围可用空间的限制，以及（iii）降低废物运输和恢复的成本。在该项目期间，我们将使用数学编程开发理论框架，以优化矿坑采空区域内的生产计划和废料处理。我们将测试、校准和验证配方并分析结果。在该项目中，工业合作伙伴的专业知识将与大学研究人员的专业知识相结合，建立一个创造性的团队，以实现最佳结果。该研究将提供有关主题的详细培训，并将包括作为其主要交付成果的优化配方和相关可应用于露天矿生产调度的计算机代码。