Workshop on Dynamic Fracture and Fragmentation of Geologic Materials

岩石材料的动态断裂行为，包括裂纹的产生、扩展和扩展，是理解建筑、采矿、采石和核废料场地中硬岩开挖的基础。在大多数情况下，开挖是在爆炸载荷下完成的，这取决于初始钻孔压力、裂缝扩展、应力波诱导的裂缝和钻孔中较长期的气体加压。岩石断裂破碎的研究问题很多，引起了国际学术界的广泛关注。这一奖项是为了赞助一个关于地质材料的动态断裂和破碎的研讨会，该研讨会将于1987年8月在科罗拉多州的Keystone举行第二届国际爆破破碎国际研讨会之后举行，并将在加拿大蒙特利尔举行的国际岩石力学学会会议之前举行。研讨会的时间安排是为了吸引国际社会在岩石破裂和碎裂方面的最好的研究人员。讲习班的两个主要目标是：1)从分析、实验和计算的角度回顾岩石破裂和碎裂的研究现状；2)从研究人员和用户的角度确定研究重点。组委会是从美国备受尊敬的研究人员中挑选出来的，并已准备好临时出席名单。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在这一重要领域的计划产生富有成效的和一致的高质量研究。

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.