Hydraulic Conductivity Measurement in Unsaturated Soils With a Modified Cone Penetrometer

9501772本科生水平的GRIBB土力学和地下水流动课程，通常是研究生水平的课程，很少包括对非饱和土壤性质的深入讨论。如果不了解非饱和土壤的流体运移、强度和体积变化特性，工程师就不能有效地设计膨胀土的基础，预测残积土的斜坡稳定性，或表征包气带中的污染物流动。从历史上看，与非饱和渗流方程相关的复杂性使得解析解变得困难，并且局限于相对简单的问题。新的计算方法、功能强大的个人计算机和改进的土壤仪器使从数值和实验上研究更大范围的问题成为可能。该项目的两个总体目标是：1)增加非饱和流动行为的知识库；2)将非饱和土力学和非饱和流动的主题纳入南卡罗来纳大学的土木工程课程，以更好地满足专业和社会不断变化的需求。***

9501772 Gribb Soil mechanics and groundwater flow courses at the undergraduate level, and often at the graduate level, rarely include in-depth discussion of the properties of unsaturated soils. Without an understanding of fluid transport and strength and volume change behavior of unsaturated soils, engineers are not well equipped to effectively design foundations for expansive soils, predict slope stability of residual soils, or characterize the flow of contaminants in the vadose zone. Historically, complexities associated with unsaturated flow equations have made analytical solutions difficult and limited to relatively simple problems. New computational methods, powerful personal computers, and improved soil instrumentation have made it possible to investigate a larger scope of problems, both numerically and experimentally. The two overall goals of this project are: 1) to increase the knowledge base of unsaturated flow behavior and 2) to incorporate the topics of unsaturated soil mechanics and unsaturated flow into the civil engineering curriculum at the University of South Carolina to better meet changing needs of the profession and society. ***