非饱和绢云母片岩残积土三轴压缩变形规律
摘要:为研究非饱和绢云母片岩残积土的三轴压缩特性，利用非饱和三轴蠕变仪，进行了控制基质吸力和净平均应力的压缩试验。试验结果表明：基质吸力相同时，随着净平均应力的增大，压缩变形逐渐变大；在一定范围内，随着基质吸力的增大，绢云母片岩残积土的屈服应力也增大，干密度较大时，屈服应力较大；净平均应力相同时，随着基质吸力的增大，变形逐渐减小。对比两种应力路径下的压缩试验，可以发现到达屈服吸力后，荷载的施加是产生变形的主要原因。
Abstract:To study the triaxial compression characteristics of unsaturated sericite schist residual soil, the compression tests of controlling matric suction and net mean stress were carried out by using unsaturated triaxial creep apparatus. The results show that: when the matric suction is the same, the compression deformation increases with the increase of net mean stress. In a certain range, with the increase of matrix suction, the yield stress of sericite schist residual soil also increases, and when the dry density is high, the yield stress is high. When the net mean stress is the same, the deformation decreases with the increase of matrix suction. Comparing the compression tests under the two kinds of stress change, it can be found that the main reason for deformation is the application of load after reaching the yield suction.
中文标题：
非饱和绢云母片岩残积土三轴压缩变形规律
Triaxial Compression Deformation of Unsaturated Sericite Schist Residual Soil
作者：
支太强,刘欢,王云,白明媛
Zhi Taiqiang,Liu Huan,Wang Yun,Bai Mingyuan
作者简介:支太强，男，1989年生，汉族，云南宣威人，大学本科，工学学士，工程师，主要从事土木工程结构方向研究。E-mail：75297129@qq.com
通讯地址：
云南省建筑工程设计院有限公司，云南昆明 650501
YunnanArchitecturalEngineeringDesignCompanyLimited,Kunming650501,Yunnan,China
中图分类号:TU 432
doi:10.3969/j.issn.1007-2993.2022.05.013
出版物：岩土工程技术
收稿日期:2021-05-08
刊出日期:2022-10-08
关键词:非饱和土,绢云母片岩残积土,三轴压缩,非饱和三轴蠕变仪
Key words:unsaturated soil,sericite schist residual soil,triaxial compression,unsaturated triaxial creep apparatus
文档包含图片数量：图片(4)张
文档包含表格数量：表格(3)个
参考文献：
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