Ground Motion and Liquefaction Study of Fill Soils in San Francisco Using Observations from the 17 October 1989 Loma Prieta Earthquake

利用 1989 年 10 月 17 日洛马普列塔地震的观测结果对旧金山填土进行地震动和液化研究

• 批准号: 9003477
• 负责人: G. Wayne Clough
• 金额: $ 11.15万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-05-01 至 1991-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9003477&HistoricalAwards=false
• 关键词: Ground; Motion; Liquefaction; Study; Fill

This project addresses the lessons learned from the 17 October 1989 Northern California (Loma Prieta) earthquake. It is a continuation of a joint project with Professor Jean-Lou Chameau at Purdue University that was funded through the Small Grant for Exploratory Research (SGER) program: The objectives of this project were: to gather relevant geotechnical data; to map ground features that are important to identify the extent of liquefaction and ground amplification effects; perform about 30 cone penetration tests at locations where earlier tests had been conducted; organize the above information into a computerized data base; and make preliminary assessments of the correlation between field observations and data obtained before and after the 1989 earthquake. The objectives of this continuation joint research project are to study the ground motion and liquefaction characteristics of the fill soils that surround the northern and eastern periphery of San Francisco as well as areas south of San Francisco. The fill soils are a major element in the damages that occurred in the Bay Area due to the Loma Prieta earthquake. Drs. G.R. Martin and E. Kavazanjian of Earth Technology Corporation in Long Beach, CA, are participating as advisors, and the cone penetration and dilatometer testing is being accomplished using equipment of the Earth Technology Corporation. The motivation for this project lies in: the important lessons that can be learned from the observed response of the fills and underlying recent sediments to the earthquake; the unique opportunity to study sites that had been investigated in the 1970's and 80's and where specific predictions had been made as to expected performance; the ability to use the observed performance as a field laboratory to test the latest developments in the state-of-the-art; and the opportunity to generate results from research that has direct value in San Francisco and nearby communities.

本项目涉及所吸取的经验教训， 1989年10月17日北方加州 (Loma普列塔）地震。 这是一个 继续执行一个与 普渡大学的让-卢·查莫教授 这所大学是通过小型 探索性研究补助金（SGER） 方案：该项目的目标是： 收集相关的岩土数据;绘制 重要的地面特征， 确定液化程度， 地面放大效应;关于 30次圆锥贯入试验， 以前的测试已经进行;组织 将上述资料输入电脑 数据库;并作出初步评估 实地观察与 1989年前后的数据 地震 这一延续工作的目标与 研究项目是研究地面 运动和液化特性 北方周围的填土， 旧金山弗朗西斯科的东部边缘以及 弗朗西斯科以南的地区。 填土 是造成这些损失的主要因素， 在海湾地区发生的事故， 普列塔地震。 G.R.博士Martin和E. 地球科技公司的卡瓦赞坚 在加利福尼亚州长滩， 顾问，锥入度和 正在完成温度计测试 使用地球技术的设备 Corporation. 该项目的动机在于： 重要的经验教训， 观察到的灌装响应，以及 下伏的现代沉积物 地震;研究的独特机会 已调查的地点 1970年代和80年代， 人们已经做出了预测， 性能;使用观察到的 作为现场实验室， 最新发展的国家的艺术; 和机会， 对旧金山有直接价值的研究 弗朗西斯科和附近社区。