Rock Slope Geohazard Assessment and Mitigation to Protect People and Infrastructure

岩坡地质灾害评估和缓解以保护人员和基础设施

• 批准号: RGPIN-2015-06581
• 负责人: Tannant, Dwayne
• 金额: $ 1.82万
• 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: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=591151
• 关键词: Rock; Slope; Geohazard; Assessment; Mitigation

Billions of dollars of new infrastructure will be built in steep terrain in Canada over the coming decade due to population growth and new natural gas, oil, and mining developments. People living or working near steep rock slopes and the associated infrastructure are exposed to geohazards. The long-term objectives of the research program are to improve geohazard assessment techniques and to build the missing links between geohazard assessment and the design of appropriate risk mitigation measures to reduce losses associated with rock falling from steep rock slopes. The short-term objectives address three deficiencies in the current risk management for steep rock slopes. Existing geohazard assessment methods can take too long and can expose geotechnical engineers doing the assessment to unsafe fieldwork. Overly simplistic geometric formulae (in current building codes) are used to define areas where it is safe to build; these formulae do not consider important factors such as the rock mass quality and the infrastructure vulnerability. New technologies such as slope meshing have been introduced in Canada but design methods are needed for specifying how these should be used.  The research objectives are to:

未来十年，由于人口增长和新的天然气、石油和采矿开发，加拿大将在陡峭的地形上建造数十亿美元的新基础设施。居住或工作在陡峭岩石斜坡附近的人们以及相关的基础设施都暴露在地质灾害中。该研究计划的长期目标是改善地质灾害评估技术，并建立地质灾害评估和设计适当的风险缓解措施，以减少与岩石从陡峭的岩石边坡脱落的损失之间的缺失环节。短期目标解决目前的风险管理陡峭的岩石边坡的三个不足之处。现有的地质灾害评估方法可能需要太长的时间，并可能使进行评估的岩土工程师暴露于不安全的现场工作。过度简单化的几何公式（在当前的建筑规范中）用于定义安全建筑的区域;这些公式没有考虑岩体质量和基础设施脆弱性等重要因素。加拿大已采用斜坡网格等新技术，但仍需设计方法，以具体说明应如何使用这些技术。研究目标是：