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文章对常温和高温下的沥青混凝土路面,当沥青结构层中有、无贯穿裂缝,有、无土工格栅加筋时工况的应力分别进行了数值计算分析。结果表明:无论是常温或是高温,在沥青混凝土路面结构层中加铺土工格栅后可有效的改善路面结构的应力状态,特别是当基层有贯穿裂缝时土工格栅能有效地分散由于基层裂缝引起的应力集中现象。同时文中揭示了土工格栅的增强机理和防裂作用,证明土工格栅加筋沥青混凝土路面与其他改善措施无法比拟的优点。
The stress and strain of asphalt concrete pavement at normal temperature and high temperature are calculated and analyzed respectively with and without cracking, with and without geogrid reinforcement. The results show that the geogrid can effectively improve the stress state of the pavement structure, no matter it is normal temperature or high temperature. The geogrid can disperse effectively when the grassroots have cracks. Crack-induced stress concentration. At the same time, the article reveals the reinforcement mechanism and anti-cracking effect of geogrid, and proves the advantages of geogrid reinforced asphalt pavement compared with other improvement measures.