Workshop on Dynamic Fracture and Fragmentation of Geologic Materials

地质材料动态断裂与破碎研讨会

• 批准号: 8617332
• 负责人: William Fourney
• 金额: $ 2.33万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-02-01 至 1989-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8617332&HistoricalAwards=false
• 关键词: Workshop; Dynamic; Fracture; Fragmentation; Geologic

Dynamic fracture behavior of rock materials which includes crack initiation, and propagation, is fundamental to understanding excavation of hard rock in construction, mining, quarrying and nuclear waste sites. In most cases excavation is accomplished with explosive loadings where it depends on initial bore hole pressure, crack extension, stress wave induced fractures and longer term gas pressurization in the bore hole. The research issues in fracture and fragmentation of rock are many and they have attracted the attention of the internaitonal research community. This award is to sponsor a workshop on Dynamic Fracture and Fragmentation of Geologic Materials which is to be held immediately following the 2nd International Symposium on Fragmentation by Blasting at Keystone, Colorado in August of 1987, and prior to the meeting of the International Society of Rock Mechanics to be held in Montreal, Canada. The Workshop is timed to attract the best researchers in rock fracture and fragmentation from the international community. The two main objectives of the workshop are 1) to review the status of research on rock fracture and fragmentation concerning analytical, experimental and computational viewpoints, and 2) to establish research priorities from both the researchers and users viewpoint. The organizing committee has been selected from well respected researchers in the U.S. and a tentative attendance list has been prepared. We anticipate that the workshop will be successful and will provide needed direction to ensure that the NSF program in this important area yields productive and uniformly high quality research.

含裂纹岩石材料的动态断裂行为 引发和传播是理解挖掘的基础 建筑、采矿、采石和核废料场的硬岩。 在大多数情况下，开挖是在爆炸荷载下完成的， 它取决于初始钻孔压力、裂纹扩展、应力波 在钻孔中诱发裂缝和长期气体加压。 岩石断裂破碎的研究问题很多， 引起了国际研究的关注 社区 该奖项是赞助一个关于动态断裂的研讨会， 应立即保存的地质材料碎片 在第二届爆破破碎问题国际研讨会之后， 1987年8月，在科罗拉多的基斯通，在会议之前， 国际岩石力学学会将在加拿大蒙特利尔举行。 这次研讨会的时间安排是为了吸引岩石断裂领域最优秀的研究人员 和国际社会的分裂。 两个主要 讲习班的目标是：（1）审查关于下列问题的研究现状： 岩石断裂和破碎的分析，实验和 计算的观点，和2）建立研究的优先事项，从 研究人员和用户的观点。 组委会从备受尊敬的 研究人员在美国和暂定出席名单已被 制备 我们预计研讨会将取得成功，并将 提供必要的指导，以确保NSF计划在这方面 重要的领域产生了富有成效和一致的高质量研究。