Study on Reinforcement Characteristics of Circular Anchor Anti-Slide Pile in Complex Geological Slope

Abstract

Anti-slide pile is one of the commonly used means in landslide disease control. It is widely recognized. However, there are problems such as long construction period and large safety hazards, and improving circular anti-slide piles can solve the above problems. Taking a highway slope in Yunnan as an example, the reinforcement characteristics are studied of circular anti-slide pile. The model test results show that the bending moment variation of quadrate pile and circular pile is similar, but the maximum bending moment of quadrate pile is large, and the positive and negative fluctuation of bending moment is large. The load concentration of quadrate pile fluctuates greatly and the maximum value is greater than that of circular pile. The displacement of quadrate pile and circular pile changes similarly with the increase of landslide thrust, but the damage degree of quadrate pile is greater than that of circular pile when the landslide thrust is large. The field monitoring results show that the circular anchor cable anti-slide pile can increase the anti-sliding friction resistance and reduce the deformation, which is suitable for slopes with different geological characteristics.