Study of Reinforcment Behavior for Geosynthetics Applying in Flexible Pavement Road Base Layer

• Main Authors: Bo-Hong Lin, 林柏宏
• Other Authors: Chia-Nan Liu
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/87783992559219709082

碩士 === 國立暨南國際大學 === 地震與防災工程研究所 === 97 === The geosynthetic reinforced soil has widely used on soil retaining walls, abutments, steep slopes, embankments and road foundations.In this study, a unit cell plane strain testing device which is able to simulate the stress and strain behaviors of soil and reinforcement was applied to simulates the behavior of reinforced road base soil. This test used three soil materials (sand of Taichung port, gravel, and laterite) , PET geogrids of two different strength and one geotestile. Two different series of loads, static and dynamic (cyclic) was applied to proceed a series of reinforced soil tests. During the test, the local strain of geogrid which was measured by strain gauges was compared with the overall strain of the geogrid. The behaviors of reinforced soil under different testing conditions were also compared. The test results indicated that the static loading and dynamic loading condition, type of geosynthetic reinforcement, depth of reinforcement installation have influence on the behavior of reinforced soil.