岩土力学2018，Vol.39Issue(5)：1917-1922,6.DOI:10.16285/j.rsm.2017.0189
岩石空心圆柱扭剪仪试验能力
Study of hollow cylinder torsional apparatus for rock
摘要
Abstract
A self-made hollow cylinder torsional apparatus for rock was developed to control four loading parameters independently,including axial force,torque,internal and external confining pressures.This study presented several stress paths and loading methods which were easy to implement in practical engineering projects and meet their requirements through mathematics and mechanics analysis.The tensile strength of rock can be obtained in the premise that the axial force and internal confining pressure satisfy specific relationships.By controlling the internal and external confining pressures and axial force,conventional triaxial tests and true triaxial tests can be carried out by using the hollow cylinder torsional apparatus for rock.Thus,the existing disadvantages of the complicated true-triaxial test apparatus and the large loaded surface friction were overcome.The mean stress p and the coefficient of intermediate principal stress b can be kept constant when the axial force and the internal and external confining pressures meet certain relationships,respectively.Those stress paths can be used to study the effect of the stress rotation on rock mechanical properties.Therefore,the realisation of the above stress paths is of great significance to the study of rock mechanical properties and the development of laboratory tests.关键词
岩石力学/应力主轴旋转/空心圆柱扭剪仪/应力路径Key words
rock mechanics/principal stress rotation/hollow cylinder torsional apparatus/stress path分类
建筑与水利引用本文复制引用
周辉,姜玥,卢景景,胡大伟,张传庆,陈珺,李震..岩石空心圆柱扭剪仪试验能力[J].岩土力学,2018,39(5):1917-1922,6.基金项目
国家重点基础研究发展计划项目(973 计划)(No.2014CB046902) （973 计划）
中国科学院科研装备研制项目(No.YZ201553) （No.YZ201553）
国家自然科学基金项目(No.51427803,No.51404240,No.51709257) （No.51427803,No.51404240,No.51709257）
河南省教育厅高等学校重点科研项目(No.16A560004). This work was supported by the National Program on Key Basic Research Project of China (973 Program)(2014CB046902),the Instrument Developing Project of the Chinese Academy of Sciences (YZ201553),the National Natural Science Foundation of China (NSFC) (51427803,51404240,51709257) and the Key Scientific Research Project of Henan Higher Education Institutions (16A560004). （No.16A560004）
