麦秸秆纤维加筋土崩解特性试验研究  

Experimental Study on the Disintegration Characteristics of Wheat Straw Fiber Reinforced Soil

作　　者：蒋希雁[1,2] 刘杰 刘嘉璐[1,2] JIANG Xiyan;LIU Jie;LIU Jialu(Hebei University of Architecture,Zhangjiakou,Hebei 075000;Hebei Key Laboratory of Civil Engineering Diagnosis,Reconstruction and Disaster Resistance,Zhangjiakou,Hebei 075000)

机构地区：[1]河北建筑工程学院,河北张家口075000 [2]河北省土木工程诊断改造与抗灾重点实验室,河北张家口075000

出　　处：《河北建筑工程学院学报》2023年第3期50-55,107,共7页Journal of Hebei Institute of Architecture and Civil Engineering

基　　金：校级研究生创新基金项目(XY202201);河北省高等学校科学技术研究项目(ZD2022126)。

摘　　要：为了深入研究麦秸秆纤维加筋土的崩解特性,利用崩解试验仪,对4种不同纤维长度和5种不同纤维掺量的试样进行了崩解试验。通过对累计崩解量曲线和崩解速率曲线的分析,确定了麦秸秆纤维的最佳长度和掺入量。试验结果表明:随纤维长度的增长,麦秸秆纤维加筋土的崩解速率与纤维长度曲线出现先降低后增长的变化趋势,最优麦秸秆纤维长度20mm;随纤维掺量的增加,麦秸秆纤维加筋土的崩解速率与纤维长度曲线出现先降低后增长的变化趋势,最佳麦秸秆纤维掺量为0.3%。麦秸秆纤维加筋土最优配比为20mm纤维长度0.3%纤维掺量。In order to further study the disintegration characteristics of wheat straw fiber reinforced soil,the disintegration test was carried out on four samples with different fiber lengths and five different fiber contents by disintegration tester.Through the analysis of the cumulative disintegration amount curve and the disintegration rate curve,the optimal length and incorporation amount of wheat straw fiber were determined.The experimental results show that with the increase of fiber length,the disintegration rate and fiber length curve of wheat straw fiber reinforced soil will first decrease and then increase,and the optimal wheat straw fiber length is 20mm.With the increase of fiber content,the disintegration rate and fiber length curve of wheat straw fiber reinforced soil will first decrease and then increase,and the optimal wheat straw fiber content is 0.3%.The optimal ratio of wheat straw fiber reinforced soil was 20mm fiber length and 0.3% fiber content.

关 键 词：纤维加筋土 崩解特性 崩解速率 最优配合比 

分 类 号：TU52[建筑科学—建筑技术科学]