摘要
在研究HDPE单向土工格栅的蠕变和应力松弛特性的基础上,建立了单向土工格栅的流变模型。将加筋土视为由筋、土组成的宏观均匀材料,建立单向土工格栅加筋土体的流变模型。分析表明,在承受长期荷载作用的加筋土的本构关系中,必须考虑由聚合物为原料制作的筋材所具有的明显时间相关的力学行为。
Based on the analysis of rheological properties of HDPE unigeogrid,this paper introduces a visco-elastic model to analogy the of the properties of creep and stress relaxation of HDPE unigeogrid.It is assumed that reinforced soil can be treated as a macroscopically homogenous composite material.A simple visco-elastic model of sand reinforced with HDPE unigeogrid is proposed.The rheological properties of geosynthetics made from polymers should be taken into account because they influence the long-term behavior of earth structure reinforced with them.
出处
《四川建筑科学研究》
2004年第2期58-60,共3页
Sichuan Building Science
