半刚性沥青道路在加设级配碎石夹层后结构的受力情况发生巨大的变化。
After unbound aggregate being settled in the semi-rigid pavement, there are great changes in structural stress distribution and form of structural default.
基于断裂力学，采用有限元程序，对两种级配碎石夹层沥青路面结构和常规半刚性基层沥青路面结构的断裂进行了对比分析。
Based on the cracking mechanism and FEM, the crackings on the grade crushed stone pavement and the semirigid base asphalt pavement are compared and analyzed.
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