Dynamic Shear Properties of Geosynthetics Interfaces Relevant to Earthquake Hazard Mitigation

在过去的十年中，土工合成材料在岩土工程实践中的使用有了很大的增加。今天，土工合成材料被用于过滤、排水、分离、加固土壤、防渗以及许多其他应用。本研究计划的主要目的是评估不同土工合成土体系统的动态界面剪切特性。其目标是获得有关土工合成材料-土壤系统的基本行为和性能的必要信息，其动机是在减轻地震灾害方面的应用，例如：基础隔震、土工织物和土工格栅加固的土坡、土工膜衬砌的运河、水库、隧道和危险废物封存填埋场。还注意到需要研究和开发用于动态界面属性的可靠测试程序。

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.