Experimental research on shear creep properties of a swelling rock under different expansive states
FAN Qiuyan1，ZHANG Bo2，3，LI Xian4
(1. School of Resources Metallurgy，Guangxi University，Nanning，Guangxi 530004，China；2. School of Civil Engineering，Guangxi University，Nanning，Guangxi 530004，China；3. Guangxi Vocational and Technical College of Communications，Nanning， Guangxi 530023，China；4. School of Aerospace Engineering and Applied Mechanics，Tongji University，Shanghai 200092，China)
Abstract：In order to study the effect of different expansive states on the shear creep characteristics of the swelling rock，the creep test without expansion，the expansion and creep completely coupled test，the expansion and creep incompletely coupled creep test，and the expansion and creep separately coupled test were carried out. The creep curves of all tests have similar regularities. The long-term strength under expansion is much smaller than that under no expansion，and the long-term strength under completely coupled expansion and creep is smaller than that under separately coupled and creep. In completely coupled expansion and creep situation，a function made by curve fitting is used to express the relationship between long-term strength and normal stress. In separately coupled expansion and creep situation，a function is used to express the relationship of the normal pre-stress and the long-term strength.
范秋雁1，张 波2，3，李 先4. 不同膨胀状态下膨胀岩剪切蠕变试验研究[J]. 岩石力学与工程学报, 2016, 35(S2): 3734-3746.
FAN Qiuyan1，ZHANG Bo2，3，LI Xian4. Experimental research on shear creep properties of a swelling rock under different expansive states. , 2016, 35(S2): 3734-3746.
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2016, Vol. 35 
