Effect of double-row anti-slide micropiles

In order to understand the potential sliding trend of the sliding body, the safety of such anti-slide micropiles was evaluated, the theoretical calculation method was evaluated and the safety of side slope of the expressway and the slope body position shift was considered. The double-row anti-slide micropiles were built on to a certain side slope of Tongping expressway and pile top displacement and pile side pressure were monitored to the reinforced slope. No obvious displacements of the potential sliding body and fixed slope were found in the monitored results, and the pile top displacement was on the small side and the rate greatly decreased. Based on the finite element mechanics analysis, the pile top displacement was reduced by 27.88%, under the same sliding power, compared with the ordinary cantilever pile. The dynamic stability of reinforced side slope was elaborated on the basis of theoretical analysis. The double-row anti-slide micropiles' stress ratio and stress distribution were obtained, which were better than the general anti-slide pile reinforcement. The research can offer help to the application of double-row anti-slide micropiles to the similar side slopes.