太原理工大学学报Issue(6)：697-701,5.DOI:10.16355/j.cnki.issn1007-9432tyut.2015.06.012
双向土工格栅的蠕变与收缩特性研究
Study on the Creep and Shrinkage Properties of Bidirectional Geogrid
摘要
Abstract
In this paper ,the 1000h creep tests were conducted on two kinds of polypropylene bidirectional geogrid under a same stress level .The shrinkage measure ment was done after the creep tests and complete unloading .T he test results show that ,in the process of the creep ,the de‐velopment of is creep for the geogrid specimens is nonuniform ,and the final strain of bidirectional geogrid is about 4% ~5% ,which is less than that of uniaxial geogrid .On the other hand ,by using the Kelvin model and other models to simulate the process of the shrinkage tests ,an equation was established to describe the shrinkage of the geogrid .The experimental data were fitted with the e‐quation and the result is good .关键词
双向土工格栅/蠕变/收缩/模型/拟合Key words
bidirectional geogrid/creep/shrinkage/model/fitting分类
建筑与水利引用本文复制引用
薛超,袁慧,刘双英,白晓红..双向土工格栅的蠕变与收缩特性研究[J].太原理工大学学报,2015,(6):697-701,5.基金项目
国家自然科学基金资助项目压实黄土的工程力学特性及微观结构研究（51178287）；黄土地区公路建设与养护技术交通行业重点实验室开放课题基金资助 （）
