Learning from the Mexican Earthquake of September 19, 1985: Behavior of Friction Pile Foundations for Buildings

1985 年 9 月 19 日墨西哥地震的教训：建筑物摩擦桩基础的性能

• 批准号: 8610901
• 负责人: Poul Lade
• 金额: $ 22.5万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-07-01 至 1991-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8610901&HistoricalAwards=false
• 关键词: Learning; Mexican; Earthquake; September; 19

This research program will investigate the behavior of friction piles when subjected to cyclic loading in both the vertical and the lateral direction. Specifically, the program will involve: (1) full-scale cyclic load tests in Mexico City clay of a three-pile group and of two single piles with amplitudes chosen to represent the loading history experienced by pile foundations during the September 19, 1985 earthquake; (2) cyclic pressuremeter tests at the site of these load tests to evaluate the in-situ behavior of the clay foundation material under these conditions; and (3) cyclic vertical model pile tests in a controlled laboratory environment, using a rod shear device developed at UCLA, so as to evaluate the soil-pile interface behavior.

该研究计划将研究摩擦桩在垂直和横向方向上承受循环载荷时的行为。 具体来说，该计划将包括：(1) 在墨西哥城粘土中对三桩组和两个单桩进行全尺寸循环荷载测试，其振幅选择代表 1985 年 9 月 19 日地震期间桩基所经历的荷载历史; (2) 在这些荷载试验现场进行循环压力计试验，以评估粘土基础材料在这些条件下的原位性能； (3) 使用加州大学洛杉矶分校开发的杆剪装置在受控实验室环境中进行循环垂直模型桩试验，以评估土-桩界面行为。