Dynamic Shear Properties of Geosynthetics Interfaces Relevant to Earthquake Hazard Mitigation

与减灾相关的土工合成材料界面的动态剪切特性

• 批准号: 9113177
• 负责人: M. K. Yegian
• 金额: $ 13.7万
• 依托单位: Northeastern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-01-15 至 1994-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9113177&HistoricalAwards=false
• 关键词: Dynamic; Shear; Properties; Geosynthetics; Interfaces

The use of geosynthetic materials in geotechnical engineering practice has increased greatly during the past decade. Today, geosynthetic materials are used for filtration, drainage, separation, soil reinforcement, seepage control, and in many other applications. The primary objective of this research program is to evaluate the dynamic interface shear properties of different geosynthetic soil systems. The goals is to obtain needed information on the basic behavior and performance of geosynthetic-soil systems, motivated by applications in earthquake hazard mitigation, such as: base isolation from earthquake ground shaking, earth slopes reinforced with geotextiles and geogrids, and geomembrane lined canals, reservoirs, tunnels and hazardous waste containment landfills. Attention is also addressed to the need for research and development of a reliable testing procedure for dynamic interface properties.

在过去的十年中，土工合成材料在岩土工程实践中的应用大大增加。今天，土工合成材料用于过滤，排水，分离，土壤加固，防渗和许多其他应用。本研究计划的主要目的是评估不同土工合成土系统的动态界面剪切特性。目标是获得关于土工合成土系统的基本行为和性能的必要信息，其动机是在减轻地震危害方面的应用，例如：地基与地震地面震动隔离，用土工织物和土工格栅加固的土坡，以及土工膜衬砌的运河、水库、隧道和危险废物容器垃圾填埋场。研究和开发一种可靠的动态界面性能测试程序的需要也引起了人们的注意。