POWRE: Verification of Drainage Methods for Liquefaction Remediation

POWRE：液化修复排水方法验证

• 批准号: 9973717
• 负责人: Ellen Rathje
• 金额: $ 7.5万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2002-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9973717&HistoricalAwards=false
• 关键词: POWRE; Verification; Drainage; Methods; Liquefaction

9973717RathjeOne common earthquake-induced geotechnical hazard is soil liquefaction, the loss of strength in loose, cohesionless soils during earthquake shaking. To avoid the devastating damage associated with liquefaction, potentially liquefiable soils are treated to prevent liquefaction. Drainage is one available liquefaction remediation technique; however, its effectiveness has not been fully documented. This research project, under support by a POWRE award, will study the effectiveness of drainage as a liquefaction remediation method using large-scale, earthquake-like ground motions generated by the RESCUE (Repeatable Earth Shaking by Controlled Underground Expansion) ground motion generation technique. The study of drainage methods for liquefaction remediation is critical because drainage provided by prefabricated, composite drains is the only remediation method appropriate for sites with existing structures. Additionally, the test series will demonstrate the applicability of the RESCUE technique to study the dynamic response of geotechnical systems and pioneer a new testing technique for geotechnical earthquake engineering research. Support under the POWRE program is provided to enable the PI to obtain experience with experimental techniques which will complement her analytical capabilities.***

9973717 Rathjee9973717 Rathje9973717 Rathje997373717 Rathje97373717 Rathje97 为了避免与液化相关的破坏性破坏，对潜在的可液化土壤进行处理以防止液化。 排水是一种可用的液化补救技术，但其有效性尚未得到充分证明。 该研究项目在POWRE奖的支持下，将研究排水作为液化补救方法的有效性，该方法使用RESCUE（通过受控地下膨胀的可重复地球震动）地面运动生成技术生成的大规模地震样地面运动。 排水方法的液化补救的研究是至关重要的，因为排水提供的预制，复合排水是唯一的补救方法，适用于现有结构的网站。 此外，测试系列将证明RESCUE技术的适用性，研究岩土系统的动态响应，并开创了一种新的测试技术，岩土地震工程研究。 在POWRE计划下提供的支持使PI能够获得实验技术的经验，这将补充她的分析能力。