The currently used soil nail support design software saves designers a lot of time. But for muddy soil layer and two types of soil layer C φ When there is a significant difference in values, the software calculates results with greater distortion. This article analyzes the mechanical models of soil anchors and soil nails based on previous studies, and considers the problem from another perspective, which is to use anchor pipes to strengthen the soil and improve its C φ The value stabilizes the soil. At the same time, the effect of soil nail reinforcement on soil was also discussed