Geotechnical Earthquake Engineering Reconnaissance of the September 21, 1999, Taiwan Earthquake

1999年9月21日台湾地震岩土地震工程勘察

• 批准号: 0072688
• 负责人: Nicholas Sitar
• 金额: $ 5.5万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-05-01 至 2001-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0072688&HistoricalAwards=false
• 关键词: Geotechnical; Earthquake; Engineering; Reconnaissance; September

Abstract0072688A magnitude 7.6 earthquake occurred on September 21, 1999, near Chi-Chi in Nantou county, Taiwan, about 90 miles south of Taipei, resulting in extensive damage, injuries and loss of life. Extensive damage occurred to bridges and dams and, due to the mountainous nature of the terrain, there were hundreds of s landslides, including several very large catastrophic landslides. A very important feature of this earthquake was the reverse fault rupture with vertical displacements ranging from 2 meters along the southern section to as much as 8 meters along the northern terminus. The fault rupture extends through heavily developed areas and is responsible for much of the damage to major transportation and river control structures. Since much of northern and southern California has extensive infrastructure development along active fault traces, observing and documenting the direct impact of large fault displacement in the Taiwan earthquake is of obvious practical and research interest to the US earthquake engineering community.This action provides partial support for a coordinated industry-academia reconnaissance team to document the geotechnical and engineering geology/seismology features of this earthquake in as much detail as possible. Of particular interest is the impact of large seismic fault offset on urban infrastructure.As with all post-earthquake reconnaissance investigations, it is expected that vital records and data will become available as a result of this earthquake in Taiwan. From a scientific viewpoint, these large earthquakes act as full scale experiments that cannot be duplicated via controlled experiments in the laboratory or in the field. It is through quick response reconnaissance efforts that the mostly-ephemeral data from these events can be recovered and used to further advances in earthquake hazard mitigation. The results from this investigation are expected to yield information and data that will help the profession to understand the impact of large seismic fault offset on urban infrastructure.This is a multi-institutional award involving the University of California at Berkeley and the University of Southern California.

Abstract0072688a幅度7.6地震发生在1999年9月21日，在台湾Nantou County的Chi-Chi附近，在台北以南约90英里处，造成了广泛的伤害，伤害和生命损失。 桥梁和大坝发生了广泛的破坏，由于地形的山区性质，有数百个s滑坡，包括几个非常大的灾难性山脉滑坡。 这次地震的一个非常重要的特征是反向断裂破裂，垂直位移的范围从沿南部的2米到北部末端的多达8米不等。 断层破裂延伸到巨大的发达区域，并造成了对主要运输和河流控制结构的大部分损害。 由于北加州和南加州的大部分地区都在沿主动断层轨迹沿着积极的断层轨迹进行广泛的基础设施发展，因此观察和记录大型断层位移在台湾地震中的直接影响显然具有实践和研究兴趣。 可能的。 特别令人感兴趣的是大型地震断层抵消对城市基础设施的影响。随着所有地震后侦察调查，预计由于台湾发生了这次地震，重要的记录和数据将获得。 从科学的角度来看，这些大地震是全尺度实验，这些实验无法通过实验室或现场中的受控实验重复。 正是通过快速响应侦察工作，可以回收这些事件的主要肢体数据，并用来进一步改善地震危害的缓解措施。 这项调查的结果有望产生信息和数据，这些信息和数据将有助于该行业了解大型地震断层抵消对城市基础设施的影响。这是涉及加利福尼亚大学伯克利分校和南加州大学的多机构奖项。