【摘要】 以单轴应力和静水应力状态为例,分析了单裂隙变形过程中裂隙尖端局部能量释放和裂隙整体变形能量的等效性;并以此等效性为基础,从计算裂隙尖端局部能量释放和计算裂隙整体变形能量两种途径出发,对裂隙固体的有效弹性模量和有效体积模量进行估计,得到了相同的表达式,从而说明了两种能量的等效性是众多裂隙岩体类型有效弹性模量分析的基本前提.更多还原

【Abstract】 With the uniaxial stress and triaxial stress states as examples, the equivalence between energy release from crack tips and overall deformation energy of cracked rock is analyzed. On the basis of the equivalence, the effective elastic modulus and elastic bulk modulus of cracked solids are estimated by calculation of the local energy release from crack tips and the overall deformation energy of cracked rock. The same results obtained show that the equivalence between the two kinds of energy is a basis for estimation of the effective elastic modulus of isotropic and anisotropic cracked solids.更多还原