Strong Motion Data in India for Earthquake Hazard Mitigation

印度用于减轻地震灾害的强运动数据

• 批准号: 8619046
• 负责人: Mihailo Trifunac
• 金额: $ 8.96万
• 依托单位: University of Southern California
• 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: 1987-07-01 至 1990-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8619046&HistoricalAwards=false
• 关键词: Strong; Motion; Data; India; Earthquake

As a result of the International Workshop on Strong-Motion Earthquake Instrument Arrays in Hawaii, May 2-5, 1978, and subsequent discussions, a cooperative U.S.-India project was established to organize and install an earthquake strong motion accelerograph array in India. In August 1983, installation of 49 accelerograph stations was completed in the epicentral region of the Great Kangra Earthquake of 1905 in India. Since 1983, this array has been maintained by the staff of the University of Roorkee, India. Later, another strong motion array of 50 stations was installed in the area of Shillong, Assam, where a great earthquake of magnitude 8.7 occurred in 1897. Arrays such as these provide invaluable data whenever they are able to record a large earthquake, data which is used to better understand the processes causing earthquakes, the ground shaking resulting from large earthquakes, the effect on the stability of soil structures at a particular construction site, the response of a building or structure at that site, and the damage and loss of life that could result from damage and collapse of soil structures and buildings. Since large earthquakes are rare events, it is essential that strong motion arrays be placed in any place in the world where strong earthquakes are expected within the next decade or two. This action will assist in obtaining such data from these two crucial arrays in India, one of which was installed as cooperative agreement between the U.S. and India. The purpose of this action is to continue and to extend the accomplishments of this effort and to archive, digitize, and publish already available strong motion data in India, so that a complete detailed data gathering program can be set up for future research and its applications: all scientists and engineers involved in earthquake hazard reduction can benefit from this effort by having a sound experimental basis for their analyses and engineering applications.

1978 年 5 月 2 日至 5 日在夏威夷举行的国际强震仪器阵列研讨会以及随后的讨论的结果是，美国和印度建立了一个合作项目，在印度组织和安装地震强震加速仪阵列。 1983年8月，印度1905年康格拉大地震震中地区49个加速站安装完成。 自 1983 年以来，该阵列一直由印度鲁尔基大学的工作人员维护。 后来，在阿萨姆邦西隆地区安装了另一个包含 50 个台站的强震阵列，该地区于 1897 年发生了 8.7 级大地震。每当能够记录大地震时，此类阵列就提供了宝贵的数据。用于更好地了解引发地震的过程、大地震引起的地面震动、对特定建筑工地土壤结构稳定性的影响、该工地建筑物或结构的响应以及建筑物或结构的损坏和损失土壤结构和建筑物的损坏和倒塌可能导致生命。 由于大地震是罕见的事件，因此在世界上任何预计在未来一两年内发生强地震的地方都必须放置强震阵列。 这一行动将有助于从印度的这两个关键阵列获取此类数据，其中一个阵列是根据美国和印度之间的合作协议安装的。 该行动的目的是继续并扩展这项工作的成就，并对印度现有的强运动数据进行归档、数字化和发布，以便为未来的研究及其应用建立完整、详细的数据收集计划：所有参与减少地震灾害的科学家和工程师都可以从这项工作中受益，因为他们的分析和工程应用拥有良好的实验基础。