Development of new tools and techniques for the analysis and risk management of landslides and related geohazards

开发滑坡及相关地质灾害分析和风险管理的新工具和技术

• 批准号: RGPIN-2017-03916
• 负责人: McDougall, Scott
• 金额: $ 3.79万
• 依托单位: University of British Columbia
• 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
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=751304
• 关键词: Development; new; tools; techniques; analysis

Landslides and related natural and man-made geological hazards (geohazards), including breaches of mine tailings dams, can travel long distances and therefore pose a significant risk around the world to people, property and the environment. The long-term goal of this research program is to reduce the losses caused by these events by developing a suite of tools and techniques that improve the ability of engineers and geoscientists to answer the following questions:What is the probability that a landslide or related geohazard of a given size will occur?If it occurs, what is the probability it will reach a certain location of interest (e.g. a community)?If it reaches that location, what is the probability it will cause a certain degree of damage?If the resulting risk is unacceptable, how much can it be reduced with various mitigation options?To work toward this long-term goal, the objectives of this research program over the next five years are to improve existing tools and develop new tools that can be used to forecast the motion of the following key geohazards: debris flows, debris floods, tailings dam breaches, shoreline erosion and landslide-generated waves. All of these geohazards present unique modelling challenges that will be a focus of our work. For example, we will be studying ways to predict where debris flows may jump out of their channels and suddenly change direction, a characteristic that makes them a challenging geohazard to reliably assess and effectively mitigate. We will also focus on work that will provide better guidance to engineers and geoscientists on what input parameter values to use in their computer simulations.Our research method will be based on the following four elements: 1) field data collection and mapping of past geohazard events using state-of-the-art methods, including a unique opportunity to observe erosion and landslides caused by the filling of a new hydroelectric reservoir, 2) statistical analysis of the data we collect to look for trends that can be used to predict how far future events may travel, 3) development and calibration of computer models that can be used to predict what direction, how far and how fast future events may travel, and 4) laboratory experiments, in collaboration with other researchers, to study underlying fundamental processes that influence the behaviour of these geohazards. Through the course of this work, students in this program will gain expert knowledge of these geohazards and develop specialized skills that are in high demand in practice, where they will continue to contribute to our long-term goal of geohazard loss reduction.

山体滑坡及相关的自然和人为地质灾害（地质灾害），包括尾矿坝决口，可传播很远，因此对世界各地的人民、财产和环境构成重大风险。 这项研究计划的长期目标是通过开发一套工具和技术来减少这些事件造成的损失，这些工具和技术可以提高工程师和地球科学家回答以下问题的能力：发生给定规模的滑坡或相关地质灾害的概率是多少？如果发生，它到达某个感兴趣的位置（例如社区）的概率是多少？如果它到达那个位置，它会造成一定程度的破坏的概率是多少？如果由此产生的风险是不可接受的，那么通过各种缓解方案可以减少多少风险？为了实现这一长期目标，该研究计划在未来五年内的目标是改进现有工具并开发可用于预测以下关键地质灾害运动的新工具：泥石流，泥石流，尾矿坝决口，海岸线侵蚀和滑坡产生的波浪。 所有这些地质灾害都提出了独特的建模挑战，这将是我们工作的重点。 例如，我们将研究如何预测泥石流可能从河道中跳出来并突然改变方向的方法，这一特征使它们成为具有挑战性的地质灾害，需要可靠地评估和有效地减轻。 我们还将专注于为工程师和地球科学家提供更好的指导，指导他们在计算机模拟中使用什么样的输入参数值。我们的研究方法将基于以下四个要素：1）利用最先进的方法收集实地数据并绘制过去地质灾害事件的地图，包括提供一个独特的机会，观察新水电站蓄水造成的侵蚀和滑坡，2）对我们收集的数据进行统计分析，以寻找可用于预测未来事件可能传播多远的趋势，3）开发和校准可用于预测未来事件可能传播的方向，距离和速度的计算机模型，以及4）与其他研究人员合作进行实验室实验，研究影响这些地质灾害行为的基本过程。 通过这项工作的过程中，学生在这个程序将获得这些地质灾害的专业知识，并开发在实践中，他们将继续为我们的长期目标减少地质灾害损失的高需求的专业技能。