辽宁工程技术大学学报（自然科学版）2023，Vol.42Issue(5)：572-578,7.DOI:10.11956/j.issn.1008-0562.2023.05.008
纤维加筋水泥风积砂三轴压缩试验研究
Experimental study on triaxial compression test of fiber reinforced cement aeolian sand
摘要
Abstract
In order to study the shear strength characteristics of polypropylene fiber-reinforced cement aeolian sand,the orthogonal test method was used to conduct unconsolidated undrained triaxial(UU)test to study the effects of fiber content,fiber length,cement content,and water content on the shear strength of fiber-reinforced cement aeolian sand.The results show that the main and secondary factors influencing the shear strength of fiber-reinforced aeolite sand are cement content,fiber length,water content,and fiber content.The optimal test ratio is cement content 10%,fiber length 12 mm,water content 8%and fiber content 0.2%.The peak stress and strain of cement eolian sand can be significantly increased by adding the appropriate amount of fiber into the sample.The cohesion increases first and then decreases with the increase of fiber content,and increases with the increase of fiber length.The influence of fiber content on internal friction angle is small.The research results can provide the scientific basis for the prevention and treatment of fiber-reinforced cement eolian sand roadbeds.关键词
聚丙烯纤维/风积砂/正交试验/三轴压缩试验/黏聚力/内摩擦角Key words
polypropylene fiber/aeolian sand/orthogonal test/triaxial compression test/cohesion/internal friction angle分类
交通工程引用本文复制引用
张向东,李文亮,庞帅,张雪峰..纤维加筋水泥风积砂三轴压缩试验研究[J].辽宁工程技术大学学报（自然科学版）,2023,42(5):572-578,7.基金项目
国家自然科学基金项目(51774166) （51774166）
