【摘要】 结构性土体的剪切破坏实质是土的结构损伤导致其力学性质劣化的最终形式。基于应变等效原理，借助非线弹性的Duncan－Chang模型建立了土体宏观损伤演化方程，并以三轴试验予以分析。定义土工结构物的安全系数为极限损伤与承载能力极限状态下的最大损伤变量之比，提出相应的滑动面分析方法，并给出了应用算例。更多还原

【Abstract】 The shear failure of ceremented soil is the ultimate form of deterioration of mechanical property induced by the structural damage of soil mass． Based on the principle of equivalent strain the equation of damage evolution for ceremented soil are obtained with the Duncan－Chang Model describing nonlinear elasticity and analyzed with the data of triaxial shear test． The ratio between limit damage variable and maximal damage variable under the normally applied limit state of bearing capacity is defined as the safety factor of soil structure and analytical method of sliding surface is given． Application example is shown with the case．更多还原