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

本研究的主要目的包括：1。扩展先前的研究，并确定所需的单位能量水平传授给土壤诱导液化，通过扭剪装置中的颗粒土的实验室测试；2. 确定随机载荷下液化所需的能级，并与正弦载荷下液化所需能级进行比较；3. 开发并验证一种合理的程序，根据土壤特征和能量水平之间的关系以及设计地震的时间序列来确定土壤沉积物的液化潜力。验证程序将包括对地震期间获得的时间序列和孔隙水压力发展记录的分析。

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.