Finite Strain Consolidation of Soft Clays

萨格勒布大学土木工程学院的Antun Szavits-Nossan和科罗拉多大学的Robert L.Schiffman在固体和地质力学方面进行了为期三年的美国-南斯拉夫合作研究项目，其主要目标是通过在实验室和现场测试物理模型来开发和验证软土的多维、非线性、有限应变固结理论。这是一个三方项目，涉及科罗拉多州萨格勒布的研究小组和罗马大学和那不勒斯大学的一个意大利小组的专业知识。美国团队将开发一种解耦理论和离心机模型试验(实验室)。现场数据和土样将由意大利小组提供；耦合理论、软粘土测试和计算机程序将由南斯拉夫小组开发。现场核查将在罗马莱昂纳多·达芬奇机场的测试填充区进行。土壤的有限应变固结对近海结构物、公路路堤和海堤对三角洲土地(例如密西西比河三角洲)的保护具有重要影响。该项目得到了美国-南斯拉夫科学技术合作联合委员会的批准，并由美国和南斯拉夫政府提供等额捐款的联合基金提供资金。美国的捐款每年由国务院提供。没有NSF基金参与其中。向南斯拉夫的主要机构提供赠款。美元基金包括美国科学家前往南斯拉夫的旅费和南斯拉夫科学家在美国的生活费。这笔赠款中的意大利研究部分将由其他来源提供支持。

The principal objective of this three-year U.S.-Yugoslav cooperative research project in solid and geomechanics between Antun Szavits-Nossan at Zagreb University's Faculty of Civil Engineering and Robert L. Schiffman, University of Colorado is to develop and validate a theory for multidimensional, nonlinear, finite strain consolidation of soft soils by testing physical models in the laboratory and field. This a trilateral project, involving the expertise of the Zagreb, Colorado research teams and an Italian team at the University of Rome and Naples. The U.S. team will develop an uncoupled theory and centrifuge model tests (laboratory). Field data and soil samples will be provided by the Italian group; and the coupled theory, soft clay testing, and computer program will be devleoped by the Yugoslav group. Field verification will take place at test fills at the Leonardo Da Vinci airport at Rome. Finite strain consolidation of soils has a major impact on the behavior of offshore structures, highway embankments and protection of deltaic lands (Mississippi delta, for example) by sea dikes. This project was approved by the U.S.-Yugoslav Joint Board on Cooperation in Science and Technology and is funded through a joint fund of matching contributions from the U.S. and Yugoslav governments. The U.S. contribution is provided annually by the Department of State. No NSF funds are involved. Grants are made to the principal Yugoslav institution. Dollar funds are included for U.S. scientist travel to Yugoslavia and for Yugoslav scientists' living expenses in the U.S. The Italian research component of this grant will be supported from other sources.