土工合成材料加筋砂土三轴试验研究

Study on geosynthetic reinforced sand by triaxial compression test

本文以 5种国产土工合成材料为加筋材料 ,它们分别是针刺无纺土工织物、涤纶纤维经编土工格栅、玻璃纤维土工格栅、聚丙烯双向土工格栅和聚乙烯土工网 ,用三轴试验比较各种土工合成材料对砂土的加筋效果 ,得到一些有益的结论 ,可指导土工合成材料的优选和研究加筋机理 ,同时指出部分国产土工合成材料产品的不足。

Systematic triaxial compression tests are made for the sand reinforced by geosynthetics which include (1) needle punched non woven geotextile, (2) polyester fiber warp knitting geogrid, (3) glass fiber geogrid,(4) PP biaxial geogrid and (5) PE geonet. On basis of experimental results, this paper presents some conclusions that can be used to guide choosing geosynthetic type and to make research on geosynthetic reinforcement mechanism.