Influence Factors Comparison Model Study on Loading Characteristic of Bridge Pile in Steep Slope when the Slope Sliding

The loading characteristic of bridge pile in steep slope is more complex to that of slide-resistant pile as the slope sliding,so an influence factors compassion model test is carried out based on the rational simulation of slide surface.The maximum bending moment of pile shaft,displacement of pile head and displacement of pile on the ground is obtained in the test,so the major influence factors to the loading characteristic of bridge pile such as loading,pile rigidity,free length above the ground and slope angle is studied deeply.The results shows,that bending moment and lateral displacements of piles are caused by lateral loading mainly,and the maximum bending moment is grow to the length of free length above the ground rapidly,but few to the addition of pile rigidity and slope angle.The study would be helpful to reveal interaction regulation of pile-soil in steep slope.