Strength Evaluation of Cohesionless Soils with Oversize Particles, SFC Award in Pakistani Currency

具有超大颗粒的无粘性土的强度评估，SFC 奖（巴基斯坦货币）

• 批准号: 8715355
• 负责人: Farhat Siddiqi
• 金额: $ 3万
• 依托单位: Pakistan Council of Research in Water Resources (PCRWR)
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-06-15 至 1989-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8715355&HistoricalAwards=false
• 关键词: Strength; Evaluation; Cohesionless; Soils; Oversize

Objectives and Relevancy: This project provides support for collaboration by Dr. Richard J. Fragaszy of the Department of Civil Engineering, Washington State University, Pullman, WA, and Dr. Farhat H. Siddiqi of the Pakistan Council of Research in Water Resources (PCRWR), Islamabad, Pakistan. The two scientists plan to study and evaluate existing models for predicting static and cyclic strength behavior of soils containing oversized particles. They plan to test specimens of selected prototype soils with various maximum size particles similar to those used in earth-filled foundations and earth-filled dams. They plan to study the effects of grain shape and silt/clay content on material behavior. Static and cyclic tests on 6 inch diameter specimens will be conducted at Washington State Univ. All soil classification tests as well as static and cyclic tests for the molded specimens of 1.4 and 2.8 inch diameter will be conducted in Pakistan. The U.S.-Pakistan Program supports joint projects where the capabilities of the participants complement each other, and the research area is important to both countries. This project meets these criteria well. Merit: The project is quite important to Pakistan where large dams for irrigation and for power generation are usually built of earth materials. A better understanding of the strength of these materials can help improve the design of the structures. In the U.S. the results can benefit those designing canals and embankments or designing structures for earthquake conditions. The Pakistani scientist has worked on this problem while at the University of California, Davis and Berkeley, and has developed specific modeling hypotheses which will be tested in this project. The U.S. scientist is actively engaged in this area of research. The project is likely to strengthen the collaboration between Pakistan and the U.S. in science and engineering. Funding: The project is being funded under two grants: 1. INT8711042 to Washington State University as follows: FY87 U.S. $22,000 from ECES plus U.S.$13,079, and SFC$2,500 from INT FY88 U.S. $22,000 from ECES plus U.S.$13,079 from INT FY89 U.S. $22,000 from ECES plus U.S.$13,079 from INT 2. INT8715355 to Pakistan Council of Research in Water Resources: FY87 SFC$30,000 from INT.

目标和相关性：该项目为以下方面提供支助： 由民事部的Richard J. Fragaszy博士合作 工程，华盛顿州立大学，普尔曼，华盛顿州，和博士法哈特H。 巴基斯坦水资源研究理事会（PCRWR）的Siddiqi说， 巴基斯坦伊斯兰堡。 两位科学家计划研究和评估 现有的模型预测静态和循环强度行为 含有过大颗粒的土壤。 他们计划测试 所选原型土壤具有各种最大粒径颗粒， 用于填土地基和填土大坝的材料。 他们计划 研究颗粒形状和粉土/粘土含量对材料的影响， 行为对直径为6英寸的样本进行静态和循环测试， 在华盛顿州立大学进行。 以及1.4和2.8的模塑试样的静态和循环试验 将在巴基斯坦进行。 美国-巴基斯坦方案 支持联合项目，其中参与者的能力 两者相辅相成，研究领域对两者都很重要 国家 该项目很好地满足了这些标准。 优点：该项目对巴基斯坦非常重要， 灌溉和用于发电通常是用泥土建造的 材料.更好地了解这些材料的强度可以 帮助改进结构的设计。 在美国，结果可以 使那些设计运河和排水沟或设计结构的人受益 对于地震条件。 巴基斯坦科学家致力于此 问题，而在加州大学戴维斯分校和伯克利分校， 开发了具体的建模假设，将在此测试 项目 美国科学家积极参与这一领域的研究， research.该项目可能会加强 巴基斯坦和美国在科学和工程方面。 供资：该项目由两项赠款供资： 1. INT 8711042至华盛顿州立大学，如下所示： 1987财年ECES提供的22，000美元加上13，079，以及来自INT的2，500美元 1988财年ECES提供的22，000美元加上13，079来自INT 1989财年ECES提供的22，000美元加上13，079来自INT 2. INT 8715355巴基斯坦水资源研究理事会： FY 87 SFC$30，000来自INT。