In the landslide control and slope protection project

the circular cross-section anti-sliding pile has been widely used in geotechnical engineering practice because of its advantages of mechanized pile construction. However

compared with the traditional rectangular cross-section anti-sliding pile

there is less research on the circular cross-section anti-sliding pile

and the design and theoretical systems are not perfect enough. There is no unified conclusion on anti-sliding effect yet. In this study

the model experiments were conduct to investigate the force and deformation characteristics of circular section and rectangular section anti-slide piles

comparing their anti-slide abilities. On the premise of satisfying the similarity relation of each test

the pile-free push test

circular section anti-sliding piles test and rectangular section anti-sliding piles test were carried out respectively to observe the whole process of the deformation of soil and model piles. The experimental results were compared. Eearth pressure cells

reinforcement stress gauges

and dial indicators were arranged to monitor the earth pressure

reinforcement stress and displacement of pile top. The mechanical characteristics of the model pile were analyzed. The performance of circular cross-section anti-sliding piles is basically the same as that of rectangular cross-section anti-sliding piles under the same conditions. The force transfer is uniform in the process of loading

the requirement for the strength of the fixed end of the pile is low

and the anti-sliding bearing capacity is good. It is worth popularizing and applying in engineering practice.