The experimental on the biaxial rheological characteristics of the surrounding rock of deep buried tunnel
ZHU Ming-li
ZHU Zhen-de
TANG Hu-dan
CHEN Wei-zhong
FENG Xia-ting
Abstract：To the marked rheological and deteriorated characters appearing in process of the surrounding rock excava-tion and operation of the Jinping hydropower station deep buried tunnel, the experimental investigation on the biaxial compression rheological character of slate was done by using the CSS-283 two-way universal testing machine,the rela-tionship among stress level time and viscoelastic deformation disciplines of rock was analyzed. Based on Burgers rheo-logical model with four variables, the viscoelastic analytical expression of the biaxial rheological equation was derived by using the elastic-viscoelastic corresponding principle, and all levels rheological parameters were inversed according to the slate biaxial rheological curves. Compared with the test results, the established theoretical model can describe slate viscoelastic biaxial rheological characteristics better.
Keywords：deep buried tunnelsurrounding rockbiaxial theologicaltheological modelviscoelastic
Publication Date：2010-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 208-212 )