Multi-axial experimental study on creep and relaxation properties of red sandstone from somewhere
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Multi-axial experimental study on creep and relaxation properties of red sandstone from somewhere
Vol. 27, Issue 8期 刊出日, (2006)
作者机构:
1. 中南大学 土木建筑学院,长沙,410075
2. 中国科学院武汉岩土力学研究所,武汉,430071
3. 山东大学 岩土与结构工程研究中心,济南,250061
4. 中交第二公路勘察设计研究院,武汉,430052
作者简介:
基金信息:
DOI:
CLC:TU458+.4
Online First:26 November 2013,
Published:2006
稿件说明:
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LI You, ZHU Wei-shen, PENG Yi, et al. Multi-axial experimental study on creep and relaxation properties of red sandstone from somewhere[J]. 2006, 27(8期 刊出日).
DOI:
LI You, ZHU Wei-shen, PENG Yi, et al. Multi-axial experimental study on creep and relaxation properties of red sandstone from somewhere[J]. 2006, 27(8期 刊出日).DOI:
Multi-axial experimental study on creep and relaxation properties of red sandstone from somewhere
Compared with uniaxial experimental study on creep and relaxation properties of rock
multi-axial experiment study is very few
which makes 3-D creep and relaxation model of rock to be just simply extension without enough experiment verification. For gathering useful data and prompting development of multi-axial creep and relaxation model of rock
the following experiments were done with the red sandstone obtained from somewhere in Guangdong Province
China: (1) creep and relaxation properties of rock under different confining pressure; (2) creep and relaxation properties of rock subjected to pressures from two directions; (3) comparison of creep and relaxation properties between air-dried and saturation samples under multi-axial pressure. By analyzing experimental results
some features or phenomena are found on creep and relaxation properties of the red sandstone
for example
when axial pressures are the same
the higher confining pressure is
the smaller creep is
when confining pressures and relaxation time are the same
the higher is
the larger relaxation of is; etc.. All these are of some significance to theoretical study of rock mechanics and the design and construction of practical engineering.