浅析土钉倾角对边坡稳定性的影响

Soil nailing retaining wall is one of new support methods, At present, soil nailing wall is applied generally at home and abroad, In our country, it is used mainly in slope treatment engineering and foundation pit supporting engineering. Soil nailing inclination is an important factor for soil nailing supporting effect and slope stability, but people analyze rarely on it’s influence law.This paper analyzes the stability of soil nailing wall based on the simplified Bishop method and two engineering examples, the complicated calculation is completed by MATLAB which has powerful calculation and drawing function. Analyzing the relationship between soil nailing inclination and slope stability safety factor, obtaining the curve of soil nailing inclination and safety factor, and describing general law between the both: soil nailing has different optimal inclination for differrent project, the role of soil nailing can be play globally when it is in the optimal inclination, this can reduce engineering cost. It can remind engineering designers that not all engineerings have the same the optimal soil nailing inclination.