结构性土体破损的全过程分析

The Whole Process Analysis of the Damage of Structural Earth

运用损伤力学和断裂力学理论，从能量的角度对结构性土体裂纹扩展进行了全过程分析。理论分析表明，结构性上体抗剪的断裂韧度小于其抗拉断裂韧度。在土体破损分析中，若从损伤因素的影响来评价土体的工作状态将比较安全。

With the aid of damage mechanics and fracture mechantes, the whole process analysis has been performed to study the flaw development of structural earth from the viewpoint of energy. The result from theoritical analysis shows that the fracture flexibility of earth to resist shear is less than that to resist tension, and in the damage study of earth it will be more safe to evaluate the working state of earth by the influence of damage factor.