反射裂缝是西藏地区半刚性基层沥青路面主要裂缝破坏类型之一。本文运用了理论数值分析、室内试验以及现场试验段等研究方法,提出了林芝至拉萨高等级公路中土工布防治沥青路面反射裂缝的设计方法、铺设位置及基布最佳层间粘结方案。应用效果对比分析表明:基布能有效承担面层底部部分弯拉应力,对反射裂缝具有较强的抑制作用。 Reflective cracking is one of the major types of fracture in semi-rigid base asphalt pavement in Tibet. In this paper, the theoretical methods of numerical analysis, laboratory test and field test are applied in this paper. The design method, the laying position and the optimal interlayer bonding scheme of geotextile geogrid for asphalt pavement control are proposed. The comparative analysis of the application results shows that the base fabric can effectively bear the bending stress at the bottom of the surface layer and has a strong inhibitory effect on the reflection cracks.