土工格栅弹性变形与土体蠕变耦合效应研究
摘要:土工格栅在土体加固工程中的应用日益广泛，土工格栅弹性变形与土体蠕变之间存在复杂的耦合效应关系。采用理论分析和现场试验的方法，建立了土工格栅弹性变形与土体蠕变耦合效应模型，推导出了耦合效应本构方程与蠕变方程;通过现场试验和理论计算值，得到土体的应力水平对应变稳定时间几乎不产生影响，对应变速率和应变稳定值影响较大;土体的黏性系数对应变速率与应变稳定时间影响较大，但对应变稳定值影响较小。
Abstract:Geogrid is applied widely in soil reinforcement engineering. There is a complex coupling effect between the elastic deformation of geogrid and soil creep. Through theoretical analysis and field test, the coupling effect model of geogrid elastic deformation and soil creep is established, and the constitutive equation as well as the creep equation are deduced. Through field test and theoretical calculation, it is concluded that the stress level of soil has little effect on the strain stability time, but has a great influence on the strain rate and strain stability value. The viscosity coefficient of soil has a great influence on the strain rate and strain stability time, but has little influence on the strain stability value.
中文标题：
土工格栅弹性变形与土体蠕变耦合效应研究
Study of Coupling Effect Between the Elastic Deformation of Geogrid and Soil Creep
作者：
张军贤1,甘坚强1,王清标2
Zhang Junxian1,Gan Jianqiang1,Wang Qingbiao2
作者简介:张军贤,男,1989年生,硕士,主要研究方向为岩土工程及隧道工程。E-mail:745670965@qq.com
通讯地址：
1. 台州职业技术学院建筑工程学院, 浙江台州 318000; 2. 山东科技大学 煤矿充填开采国家工程实验室--矿山灾害预防控制重点实验室,山东青岛 266590
1.ArchitectureandCivilEngineeringInstitute,TaizhouVocational&TechnicalCollege,Taizhou318000,Zhejiang,China; 2.NationalEngineeringLaboratoryforCoalmineBackfillingMining-StateKeyLaboratoryBreedingBaseofDisasterPreventionandControl,ShandongUniversityofScienceandTechnology,Qingdao266590,Shandong,China
中图分类号:TU411.3
doi:10.3969/j.issn.1007-2993.2021.02.001
出版物：岩土工程技术
收稿日期:2020-01-13
网络出版日期:2021-11-12
关键词:弹性变形,蠕变,耦合效应,本构关系
Key words:elastic deformation,creep,coupling effect,constitutive relationship
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基金项目：
基金项目: 国家自然科学基金(51778351) 台州职业技术学院青年课题 台州市科技计划项目"深基坑围护桩嵌固深度及其优化研究"(200gy35)
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