摘要
筋-土界面的作用特性直接决定加筋土工程的稳定性,所以筋材与填料的界面技术指标是土工加筋关键的设计指标。该文利用TZY-1型土工合成材料综合测定仪,以塑料土工格栅为加筋材料,以红粘土为填料进行直剪摩擦和拉拔摩擦试验,对不同压实度、不同加筋材料、不同速率下加筋土的摩擦特性、抗拔位移的变化规律进行了研究,为今后的加筋土工程应用提供参考,为相关工程的稳定性和变形分析提供依据。
The interaction characteristics between reinforcement and soil directly detennine the stability of reinforced soil engineering, so the technology indexes of reinforcements - soil interface are key to the design of reinforced soil. Pullout test and direct shear friction test are conducted using TZY-1 geosynthetics integrated detector, with plastic geogrids and red clay as filler. Then, friction characteristics of reinforced soil as well as change laws of pullout displacement under different compaction degree , different reinforcements and different shearing rate have been studied, which provides reference for further application of reinforced soil and basis for stability and deformation analysis of relevant projects.
出处
《勘察科学技术》
2009年第1期11-14,共4页
Site Investigation Science and Technology
关键词
土工格栅
加筋土
直剪摩擦试验
拉拔摩擦试验
geogrids
reinforced soil
direct shear friction test
pullout friction test
