STUDY ON HYPORBOLIC SHEAR DEFORMATION CURVE OF THE DISCONTINUOUS PLANE IN ROCK MASS
岩体不连续面双曲线剪切位移曲线的研究

For the research on shear deformation characteristics of the discontinuous plane, the hyperbolic function is adopted to describe the shear deformation curve, and the key factors are discussed. These factors are coefficient A and B. The relation among the coefficients , the vertical stress ratio (the ratio of the normal stress on the discontinuous plane to the uniaxial compression strength of the material), the undulation angle i and the shear area of the discontinuous plane are analysed. Meanwhile, the simulated curves of the hyperbolic function are compared with the test curves. Because the simulated curve can describe the initial shear rigidity and the peak value of the shear stress more exactly, that is to say, the simulated curve can describe the shear deformation curve more ideally, which makes the quantitative evaluation method of practical significance.