Abstract:With the development of social economy, more and more urban underground roads play an important role in urban traffic. For all underground structures, the anti-floating design is one of the most important design contents. Especially for the alignment engineering of underground road, it is more necessary to comprehensively consider the engineering geology, hydrogeology and structural characteristics. The anti-floating measures are taken in the zones. Taking Haiqu Road Underpass in Rizhao City as an example, the common anti-floating measures and the comprehensive application of anti-floating measures in long-distance underground road engineering are specially discussed.