土木与环境工程学报（中英文）2025，Vol.47Issue(4)：1-9,9.DOI:10.11835/j.issn.2096-6717.2023.064
纤维含量对加筋土宏观和微观特性的影响
Influence of fiber content on macro and micro characteristics of reinforced soil
摘要
Abstract
Fiber content is an important parameter affecting reinforced soil.In existing research,the range of fiber content values is generally small,and the physical and mechanical properties of reinforced soil with higher fiber content are not well understood.In order to study the impact of higher fiber content on rice straw fiber-reinforced soil,this study sets up 10 fiber mass fractions and uses direct shear tests for research,exploring the effect of fiber content on the strength characteristics of reinforced soil.Additionally,scanning electron microscopy(SEM)and nuclear magnetic resonance(NMR)tests are used to analyze the microstructure features of fiber-reinforced soil.The results show that adding fibers can effectively improve the shear strength of the soil.The reinforcement mechanism of fiber-reinforced soil is related to fiber content.A small fiber content has little effect on the porosity of the soil,and the reinforced soil is based on the soil skeleton.When the fiber content is high,the porosity increases significantly,and the main structure of the reinforced soil would be composed of both the soil skeleton and the fiber skeleton.关键词
加筋土/纤维含量/抗剪强度/微观特征Key words
reinforced soil/fiber content/shear strength/micro characteristics分类
建筑与水利引用本文复制引用
陈志波,郭学文,戴梦兰,赖汉江,谢永宁..纤维含量对加筋土宏观和微观特性的影响[J].土木与环境工程学报（中英文）,2025,47(4):1-9,9.基金项目
国家自然科学基金(52278335) （52278335）
福建省社会发展引导性(重点)项目(2021Y0004) （重点）
福建省自然资源厅科研项目(2022122105) （2022122105）
清电(厦门)能源服务有限公司项目(2021111904) National Natural Science Foundation of China(No.52278335) （厦门）
Guiding(Key)Project of Social Development in Fujian Province(No.2021Y0004) （Key）
Natural Resources Department of Fujian Province(No.2022122105) （No.2022122105）
Project of Qingdian(Xiamen)Energy Service Co.,LTD.(No.2021111904) （Xiamen）
