工程地质学报2016，Vol.24Issue(3)：391-397,7.DOI:10.13544/j.cnki.jeg.2016.03.008
钢塑凸榫土工格栅及其筋土界面特性研究
STEEL-PLASTIC TENON GEOGRID AND ITS INTERACTION CHARACTERISTICS WITH BACKFILLS
摘要
Abstract
In this paper, a new type of geogrid structure named steel -plastic composite tenon geogrid is designed by attaching tenon to steel-plastic geogrid.Laboratory direct shear tests and pull -out tests between various typical backfills and geogrid and tenon geogrid are carried out respectively .The test results demonstrate that the tenon is useful to improve the mechanical characteristics between geogrid and backfills .Damage model between tenon geogrid and soils is analyzed.A simple theoretical formula describing the interaction shear strength is deduced . Comparisons between laboratory test results and theoretical results indicate that the friction angle based on the formula calculations coincides with that of the test results , although the cohesion is far different from the that of the test results.Based on the test results, the value of tenon's contribution to cohesion is recommended to be 2 kPa to 7 kPa.关键词
钢塑土工格栅/凸榫/直剪试验/拉拔试验/筋土界面强度Key words
Steel-plastic geogrid/Tenon/Direct shear test/Pull-out test/Interaction strength between geogrid and soils分类
建筑与水利引用本文复制引用
王睿,王双,彭大雷..钢塑凸榫土工格栅及其筋土界面特性研究[J].工程地质学报,2016,24(3):391-397,7.基金项目
中国民航机场建设集团公司科技及基础研发项目（项目编号jsrdkyn201011）资助． （）
