Investigation into the use of Continuous Strain Monitoring Fiber Optic techniques with a view to optimization of Ground Support Design associated with Tunnelling for Civil Infrastructure

研究连续应变监测光纤技术的使用，以优化与民用基础设施隧道相关的地面支撑设计

• 批准号: RGPIN-2019-05673
• 负责人: Vlachopoulos, Nicholas
• 金额: $ 1.89万
• 依托单位: Royal Military College of Canada
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=738442
• 关键词: Investigation; into; use; Continuous; Strain

With the increasing world-wide innovations and technological advancements within the mining and tunnelling industry, Canada will require to remain competitive; not only to exploit its own natural resources and optimize design of civil infrastructure but also to continue to export such expertise globally. Exploiting the underground footprint within urban centers will be crucial to the sustainability of such habitations. Population and economic growth balanced against a decreasing investment in public infrastructure are combining to progressively strain Canada's public infrastructure. As such, engineers will be tasked to do more with less and must be forced to optimize their designs in order to provide safe, sustainable, and cost-effective solutions while minimizing impact on adjacent infrastructure and the environment. Tunnelling through weak rock (or soils) as part of civil infrastructure works (i.e. tunnelling for roads, railways, intakes for power stations, mine access, nuclear storage facilities etc.) presents unique challenges to the engineer, as misjudgments in the design of ground support systems can lead to costly failures, delays and potential human injury if under designed or high tunnelling costs if over designed. Examples of such shortcomings were include underground collapses in the light rail works in Ottawa, and similar urban tunnel collapse events in Arkansas, 2018, Oregon, 2018, Kuala Lampur 2014, Cologne 2009, Sao Paulo 2007, and Sydney 2005. These failures highlight the requirement to ensure that such mechanisms are identified and understood at the design stage and that the combined support configurations take into account all relevant factors associated with the potential tunnel behaviour and stability both during construction and subsequent operation. The proposed research covered by this Discovery Grant (DG) application leverages earlier successes achieved through NSERC funded research, to drive substantial new innovation and progress associated with the optimization of ground support elements. The research will concentrate on developing (and improving upon) a new optimized, data-driven and mechanics-based system design process for tunnel support technologies, replacing current empirical and component-focused design practice. Multiple Highly Qualified People (HQP) (PhD Students, Masters of Applied Science Students, Research Associates and Research Technologists) will be trained during this DG research program and gain significant national and international exposure. The applicant has secured funding (and buy-in from industrial and government partners) in order to provide HQPs with national and international on-site experiences at: multiple tunnelling constructions sites, mining sites, bunkers, deep geological repositories and nuclear storage facilities. The HQP will also be utilizing state-of-the-art fiber optic technologies in the field and also within a high tech and well equipped laboratory facility.

随着采矿和隧道行业内的全球创新和技术进步的日益增长，加拿大将需要保持竞争力；不仅要利用自己的自然资源并优化民用基础设施的设计，而且还继续在全球范围内出口这种专业知识。 利用城市中心内的地下足迹对于此类居住的可持续性至关重要。人口和经济增长与对公共基础设施的投资的减少平衡，正在逐步加剧加拿大公共基础设施。因此，工程师将被任命更少的工作，并且必须被迫优化其设计，以便提供安全，可持续性和具有成本效益的解决方案，同时最大程度地减少对邻近基础设施和环境的影响。 作为民用基础设施工程的一部分（即道路，铁路，电站的进气口，矿井通道，核存储设施等），穿过弱岩石（或土壤）隧道，因为地面支持系统的设计可能会导致昂贵的故障，延误，如果超过设计或高高的隧道，则对工程师提出了独特的挑战，因为在地面支撑系统的设计中可能会导致地面支撑系统的设计误解。此类缺点的例子包括渥太华轻轨作品中的地下崩溃，以及类似的阿肯色州城市隧道倒塌事件，2018年，2018年，俄勒冈州，2018年，2018年，吉隆坡，2014年，科隆2009年，2009年，SAO Paulo 2007和Sydney 2005和Sydney 2005。在施工和随后的操作过程中，与潜在的隧道行为和稳定性相关的因素。该发现赠款（DG）应用程序所涵盖的拟议研究利用了通过NSERC资助的研究获得的早期成功，以推动与地面支撑元素优化相关的实质性新创新和进步。这项研究将集中于开发（并改进）用于隧道支持技术的新的优化，基于数据驱动的系统设计过程，以取代当前以经验和组件为重点的设计实践。在此DG研究计划中，将对多名高素质的人（HQP）（HQP）（HQP）（HQP）（HQP），应用科学专业的学生，​​研究助理和研究技术人员进行培训，并获得大量的国家和国际风险。申请人已获得资金（并从工业和政府合作伙伴提供），以便为HQP提供国家和国际现场体验：多个隧道建设地点，采矿地点，掩体，深层地质存储库和核存储设施。 HQP还将在现场以及设备高技术和设备齐全的实验室设施中利用最先进的光纤技术。