The Use of Energy Principles to Evaluate Soil Liquefaction Under Random Shear Loading

利用能量原理评估随机剪切载荷下的土壤液化

• 批准号: 9215006
• 负责人: J.Ludwig Figueroa
• 金额: $ 20.71万
• 依托单位: Case Western Reserve University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-12-01 至 1995-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9215006&HistoricalAwards=false
• 关键词: Use; Energy; Principles; Evaluate; Soil

The main objectives of this study include: 1. To expand on a previous study and determine required unit energy levels imparted to a soil to induce liquefaction through laboratory testing of granular soils in the torsional shear device; 2. To determine the energy levels required for liquefaction under random loading, and compare them to the ones needed under sinusoidal loading; 3. To develop and validate a rational procedure to determine the liquefaction potential of soil deposits based on relationships between soil characteristics and energy levels, along with time series of design earthquakes. The validation procedure will include the analysis of time series and pore water pressure development records obtained during earthquakes.

本研究的主要目的包括：1.扩展到 以前的研究，并确定所需的单位能量水平给予 通过实验室测试， 扭剪装置中的粒状土; 2.确定 在随机荷载下液化所需的能量水平，以及 将它们与正弦载荷下所需的进行比较; 3.到 制定并验证合理的程序， 基于关系的土壤沉积物液化势 土壤特性和能量水平之间，沿着时间 一系列的设计地震。验证程序将 包括时间序列分析和孔隙水压力分析 在地震期间获得的发展记录。