Engineering Research Equipment Grant: Upgrade to a Dynamic Soil Testing Apparatus

工程研究设备补助金：升级为动态土壤测试仪

• 批准号: 8905732
• 负责人: Poul Lade
• 金额: $ 2.27万
• 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: 1989
• 资助国家: 美国
• 起止时间: 1989-12-15 至 1991-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8905732&HistoricalAwards=false
• 关键词: Engineering; Research; Equipment; Grant; Upgrade

This action is to support the upgrading of the control system for a sophisticated soil testing apparatus in the Civil Engineering Department of the University of California at Los Angeles . This apparatus is used for teaching as well as for research. The upgraded control system provides the precision of testing and the resulting accuracy of data measurement that is needed in the development of models for the mechanical response of soils under conditions of cyclic loading. These analytical and computational models are being developed from experimental evidence for the behavior of cohesionless soils during large three-dimensional cyclic stress changes, such as those that soil masses experience during the strong ground shaking induced by large earthquakes. The results from the upgraded soil testing apparatus provide the basis for improvements in earthquake hazard mitigation.

该行动是为了支持加州大学洛杉矶分校土木工程系的复杂土壤测试机构的控制系统的升级。 该设备用于教学和研究。 升级的控制系统提供了测试的精度以及在循环负载条件下为土壤机械响应的模型开发中所需的数据测量的准确性。 这些分析和计算模型是从实验证据中开发出来的，表明在大型三维循环应力变化中无内聚力的土壤的行为，例如土壤质量在大地震引起的强震动中经历的土壤质量经历。 升级的土壤测试设备的结果为改善地震危害缓解的基础提供了基础。