Effect of climate-driven loading events on slope stability

气候驱动的荷载事件对边坡稳定性的影响

基本信息

  • 批准号:
    RGPIN-2015-05890
  • 负责人:
  • 金额:
    $ 1.75万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2022
  • 资助国家:
    加拿大
  • 起止时间:
    2022-01-01 至 2023-12-31
  • 项目状态:
    已结题

项目摘要

Over the last century, landslides in Canada are estimated to have cost over $9.5 billion CAD in both direct and in-direct costs, and have resulted in over 600 fatalities. As Canada continues to experience increased precipitation and temperatures, the socio-economic cost will continue to rise as slopes and embankments which were previously stable face increasing risk of failure.  Efforts to understand and mitigate the impact of climate change on slope stability is critical. Specifically, Canadian engineering `best practices' for slope stability need to be addressed for a changing climate in order reduce the risks associated with climate-driven landslides. The overall goal of this research program is to understand how climate change will trigger landslides in otherwise stable slopes, and to use that knowledge to improve landslide risk assessment techniques.In this research program, two themes will investigate this challenging problem of how climate change impacts slope stability. The first theme will focus on understanding how climate change triggers landslides, concentrating on degrading permafrost and the role of soil thickness. To accomplish this, twenty geotechnical centrifuge landslide experiments will be conducted, as well as field investigations in the Northwest Territories. The scientific findings, acquired through these physical model experiments and site-investigations will have a transformative effect on the development of climate-driven landslide mitigation and slope stabilization techniques in urban and cold regions in Canada, and will provide the critical physical data needed to verify developed numerical prediction and propagation models.The second research theme will focus on risk assessment techniques, first with the development of a sensor that measures large suction stresses in the field. This will enable long-term slope stability monitoring for high-risk slopes exposed to climate changes, and provide practitioners with a cost-effective monitoring device that increases the warning time prior to a landslide. In addition, improvement to landslide susceptibility and hazard mapping techniques will be developed, targeted at expanding mapping techniques to include the impact and associated risks of climate change in urban and northern regions.Six graduate and five undergraduate students will be trained in this research program and will gain expertise in technical, scientific, research and soft skills. The developed knowledge gained by students can be applied in a wide variety of applications, including geotechnical infrastructure design, geohazard investigations, and landslide risk assessment. In the long term, the research will benefit Canada by reducing the socio-economic costs and risks associated with landslides, and will improve the safety and stability of our natural and engineered slopes that are impacted by climate change.
在上个世纪,加拿大的山体滑坡估计造成了超过95亿加元的直接和间接损失,并导致600多人死亡。随着加拿大降水量和气温的持续增加,社会经济成本将继续上升,因为以前稳定的斜坡和斜坡面临越来越大的破坏风险。 具体而言,加拿大的斜坡稳定工程“最佳做法”需要在气候变化的情况下加以处理,以减少与气候驱动的滑坡有关的风险。 该研究项目的总体目标是了解气候变化如何在稳定的边坡中引发滑坡,并利用这些知识来改进滑坡风险评估技术。在该研究项目中,两个主题将研究气候变化如何影响边坡稳定性这一具有挑战性的问题。 第一个主题将侧重于了解气候变化如何引发山体滑坡,重点关注永久冻土退化和土壤厚度的作用。 为了实现这一目标,将进行20个土工离心滑坡实验,以及在西北地区的实地调查。 通过这些物理模型实验和现场调查获得的科学发现将对加拿大城市和寒冷地区气候驱动的滑坡缓解和边坡稳定技术的发展产生变革性影响,并将提供验证开发的数值预测和传播模型所需的关键物理数据。首先是开发了一种传感器,可以测量现场的大吸力。 这将使长期的斜坡稳定性监测高风险斜坡暴露于气候变化,并提供了一个具有成本效益的监测设备,增加了预警时间之前的滑坡从业人员。此外,将开发滑坡易发性和灾害测绘技术的改进,目标是扩大测绘技术,以包括城市和北方地区气候变化的影响和相关风险。六名研究生和五名本科生将在这一研究计划中接受培训,并将获得技术、科学、研究和软技能方面的专门知识。学生获得的知识可以应用于各种各样的应用,包括岩土基础设施设计,地质灾害调查和滑坡风险评估。 从长远来看,该研究将通过降低与山体滑坡相关的社会经济成本和风险使加拿大受益,并将提高受气候变化影响的自然和工程边坡的安全性和稳定性。

项目成果

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Beddoe, Ryley其他文献

Beddoe, Ryley的其他文献

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{{ truncateString('Beddoe, Ryley', 18)}}的其他基金

Effect of climate-driven loading events on slope stability
气候驱动的荷载事件对边坡稳定性的影响
  • 批准号:
    RGPIN-2015-05890
  • 财政年份:
    2021
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual
Effect of climate-driven loading events on slope stability
气候驱动的荷载事件对边坡稳定性的影响
  • 批准号:
    RGPIN-2015-05890
  • 财政年份:
    2020
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual
Effect of climate-driven loading events on slope stability
气候驱动的荷载事件对边坡稳定性的影响
  • 批准号:
    RGPIN-2015-05890
  • 财政年份:
    2019
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual
Effect of climate-driven loading events on slope stability
气候驱动的荷载事件对边坡稳定性的影响
  • 批准号:
    RGPIN-2015-05890
  • 财政年份:
    2018
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual
Impact on the bearing capacity of an ice road with localized thin areas due to a moving load
移动荷载对局部薄层冰路承载力的影响
  • 批准号:
    530201-2018
  • 财政年份:
    2018
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Engage Plus Grants Program
Effect of climate-driven loading events on slope stability
气候驱动的荷载事件对边坡稳定性的影响
  • 批准号:
    RGPIN-2015-05890
  • 财政年份:
    2017
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual
Influence of localized thin areas on the bearing capacity of ice roads in Canada's North
加拿大北部局部薄层对冰路承载力的影响
  • 批准号:
    511853-2017
  • 财政年份:
    2017
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Engage Grants Program
Effect of climate-driven loading events on slope stability
气候驱动的荷载事件对边坡稳定性的影响
  • 批准号:
    RGPIN-2015-05890
  • 财政年份:
    2016
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual
Effect of climate-driven loading events on slope stability
气候驱动的荷载事件对边坡稳定性的影响
  • 批准号:
    RGPIN-2015-05890
  • 财政年份:
    2015
  • 资助金额:
    $ 1.75万
  • 项目类别:
    Discovery Grants Program - Individual

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发展/减排路径(SSPs/RCPs)下中国未来人口迁移与集聚时空演变及其影响
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