Pipeline wear in minefill distribution systems

加拿大采矿业面临国际竞争和矿产储量不断减少的问题。为了保持竞争力，该行业必须降低采矿成本，提高生产率，同时保持高标准的安全。可持续性必须是采矿项目的一个组成部分，从勘探、开矿、运营到关闭。发展具有成本效益的环境矿山废物管理，包括矿山充填，是当今采矿业的优先事项。在过去的三十年里，矿山充填逐渐融入了地下采矿作业。由于加拿大盾构深部采矿所产生的高应力，也要求采用创新的矿山充填方法，以承受采矿作业期间和之后的负荷。不仅需要新的或改进的矿山充填系统，而且还需要新的技术来提高采矿周期的速度，以优化采矿作业。这类浆体的安全运输和优化配置对矿山作业人员具有重要意义。 这项提议是正在进行的跨学科研究计划的一部分，该计划包括矿山充填的物理和机械特性以及经济、环境和安全问题。本项目专门针对矿山充填物运输引起的管道磨损问题(及其变化)。它将集中在了解和优化由于影响矿山充填系统的各种因素引起的管道磨损的基础和应用方面，从充填材料的特性到泥浆管道分布设计和管道材料的观点，包括其经济性。 这项研究(在本提案中称为磨损研究)侧重于地下矿山充填物分配系统的磨损原因，以及这种磨损如何影响矿砂向地下矿山的运输。管道中的磨损是由填充物本身及其流经分配系统的特性引起的。

The Canadian mining industry is faced with international competition and diminishing mineral reserves. To remain competitive, the industry must reduce the cost of mining and increase productivity while maintaining a high standard of safety. Sustainability must be an integral part of the mining project, from the exploration, mine opening, operation, and closure. Development of cost-effective environmental mine waste management, including mine backfilling, is a priority for today's mining industry. Over the last three decades, mine backfilling has progressively integrated into underground mining operations. The high stresses associated with mining at depth in the Canadian Shield, also requires innovative approaches to mine backfilling to withstand the loading both during and after mining operations. Not only new or modified minefill systems are required, but also new techniques are needed to increase the speed of the mining cycle for optimizing the mining operation. The safe transportation and optimization of such slurry mix is of great importance to the mine operator. This proposal is part of an ongoing interdisciplinary research program comprising physical and mechanical properties mine fill together with economic, environmental and safety issues. This specific project deals with the pipe wear due to the transportation of mine fill (with its variations). It will focus on fundamental as well as applied aspects in understanding and optimization of the pipe wear due to various factors governing mine fill system from backfill properties to slurry pipe distribution design and the pipe material point of view including its economic. This research (referred to in this proposal as the Wear Study) focuses on the causes of wear in underground mine fill distribution systems and how this wear affects the transport of minefill to underground mines. Wear in the pipeline is caused by the properties of both the fill itself and of its flow through the distribution system.