Behavior of Rock in Multi-Axial States of Stress

摘要96-04684 PI：约瑟夫·F·拉布兹，明尼苏达大学“岩石在多轴应力状态下的行为”该奖项支持明尼苏达大学教职员工和墨西哥国立自治大学工程研究所计划的合作研究项目。该项目将结合来自墨西哥的分析建模和来自明尼苏达州的实验测试和现场监测。该项目与目前在国家科学基金会资助的CMS-9532061下正在进行的名为“通过声发射评估故障的发生”的工作有关。这项研究包括软岩类材料的多轴压缩试验，建立峰值和峰值后的性态和抗剪强度参数，以及利用声发射技术监测在施工过程中可能发生破坏或渐进破坏的开挖。一种新的设备，明尼苏达大学的平面应变仪将被用于测试。****

Abstract 96-04684 PI: Joseph F. Labuz, University of Minnesota "Behavior of Rock in Multi-Axial States of Stress" This CONACyT award supports a collaborative research project planned between faculty at the University of Minnesota and the Engineering Institute of the National Autonomous University of Mexico. The project will combine analytical modeling from Mexico and experimental testing and field monitoring from Minnesota. The project is associated with work currently underway under NSF grant CMS-9532061 entitled "Assessing the Onset of Failure Through Acoustic Emissions." The research involves multi-axial compression testing of soft rock-like materials, establishing the peak and post- peak behavior and shear strength parameters, and using acoustic emission techniques to monitor an excavation likely to develop failure or progressive failure during construction. A novel piece of equipment, the University of Minnesota Plane-Strain Apparatus will be used in the testing. ****