POWRE: Verification of Drainage Methods for Liquefaction Remediation

9973717 rathj地震引起的一种常见的岩土灾害是土壤液化，即在地震震动中松散、无黏性的土壤失去强度。为了避免与液化相关的破坏性破坏，对可能液化的土壤进行处理以防止液化。排水是一种可行的液化修复技术；然而，其有效性尚未得到充分证明。该研究项目在power奖的支持下，将研究排水作为液化修复方法的有效性，该方法使用RESCUE（受控地下扩张的可重复震动）地面运动产生技术产生的大规模类似地震的地面运动。研究液化修复的排水方法至关重要，因为预制、复合排水管提供的排水是唯一适合现有结构场地的修复方法。此外，该系列试验将证明RESCUE技术在岩土系统动态响应研究中的适用性，并为岩土地震工程研究开辟了一种新的测试技术。在POWRE项目下提供支持，使PI获得实验技术的经验，以补充她的分析能力

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.***