Abstract:Micro steel pipe pile is widely used in the slope reinforcement projects due to its advantages such as short construction period, low engineering cost and low technical difficulty. In order to improve the effectiveness and stability of the reinforcement and treatment of a slope, relying on a road slope reinforcement project, through the analysis of the causes of the collapse of the side span, and in combination with the relevant specifications and engineering characteristics, it is finally determined to adopt a comprehensive reinforcement method combining micro steel pipe piles with slope cutting and unloading for its reinforcement design. The collapsed slope is reinforced by the comprehensive reinforcement method. At the same time, the drainage system of the slope is reasonably designed. The final result shows that the comprehensive reinforcement method can effectively treat the collapsed slope, and its stability safety factor can meet the requirements of relevant specifications.