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利用基于线弹性断裂力学的平面应变有限元方法，模拟加筋材料的薄膜单元和模拟结构层层间结合状态的界面单元，对土工加筋材料阻止沥青路面反射裂缝的桥联增韧效应进行分析。计算结果表明，在沥青面层与半刚性基层之间铺设土工加筋材料，能在不同程度上降低裂缝尖端应力集中程度，同时应保证筋材与结构层的完全联结。在裂缝扩展初期，交通荷载的弯拉和剪切作用共同影响着裂缝的扩展；在后期，剪切起主导作用。
The plane strain finite element method based on linear elastic fracture mechanics is used to simulate the interfacial elements between the stiffened thin film elements and the simulated structural layers, and the bridge toughening effect of the geogrid reinforced asphalt pavement against reflective cracking is analyzed . The calculation results show that laying geosynthetic material between asphalt surface and semi-rigid base can reduce the stress concentration in the crack tip to some extent and at the same time ensure the complete connection of the reinforcement and structure layer. In the initial stage of crack growth, the bending and shearing of traffic load jointly affected the expansion of the crack. In the later stage, shear played a leading role.