Catastrophic Rock and Concrete Brittle Failures

灾难性的岩石和混凝土脆性破坏

• 批准号: DP210102224
• 负责人: Prof David Williams
• 金额: $ 19.68万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2021
• 资助国家: 澳大利亚
• 起止时间: 2021-06-30 至 2024-06-29
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP210102224
• 关键词: Catastrophic; Rock; Concrete; Brittle; Failures

Brittle rocks and concrete under extreme stresses fracture spontaneously and without pre-warning. In deep mining and tunnelling this causes fatalities, injuries and serious damage. Based on recent advances by the CIs in understanding the effect of biaxial loading and the free surface on catastrophic fracture propagation, the project aims to develop a new paradigm of monitoring, prediction and prevention of dangerous skin rock burst-type failures. A unique experimental methodology, measurements and analytical and numerical models will be employed to provide a better understanding of the fundamental processes in rock fracturing. This will lead to safer and more cost-effective deep rock engineering designs.

脆性岩石和混凝土在极端应力下会自发地、无预警地断裂。在深部采矿和隧道施工中，这会造成人员伤亡和严重损害。基于ci在了解双轴载荷和自由面对灾难性裂缝扩展的影响方面的最新进展，该项目旨在开发一种监测、预测和预防危险蒙皮岩爆型破坏的新范式。将采用独特的实验方法、测量、分析和数值模型，以便更好地了解岩石压裂的基本过程。这将带来更安全、更具成本效益的深部岩石工程设计。