岩土力学Issue(2)：429-434,458,7.
岩盐三轴压缩试验方法及数据处理方式的对比研究
Comparison of triaxial compression test and data processing methods for rock salt
摘要
Abstract
Strength and deformation characteristics of rock salt are extremely important parameters for the design, construction and safe operation of underground energy and waste repositories. However, these require accurate measurements of the strength parameters for the concerned rock salt. In this study, samples of rock salt from Jintan in Jiangsu province and Jianghan in Hubei province, respectively, are chosen for triaxial compression tests to locally determine their short-term strength and deformation parameters. This allows a comparison of the Germany test and data processing methods, performed on behalf of the Western countries, and the Chinese test and data processing methods. Based on the German method including its shortcomings for determining the damage boundary of Jintan rock salt which was employed in the German short-term strength test, this paper presents an improved method and calculates the damage boundary for the Jintan rock salt. Comparison between the two test and data processing methods reveals that German experimental measurements yield lower strength parameter values for rock salt with large deformation. Hence the German test and data processing methods, in which the change of the sample cross-section area is considered and the data are secondarily revised by using scientific strain instead of engineering strain.关键词
岩盐/短期强度/试验方法/数据处理方式Key words
rock salt/short-term strength/test method/data processing method分类
建筑与水利引用本文复制引用
王冠,谢凌志,侯正猛,刘建锋,邢伟..岩盐三轴压缩试验方法及数据处理方式的对比研究[J].岩土力学,2014,(2):429-434,458,7.基金项目
国家自然科学基金资助国际重大合作项目（No.51120145001）；国家自然科学基金青年基金资助项目（No.51104102）。 （）
