Mountainous area steep terrain arc-shaped spaced pile retaining structure and implementation method

The invention discloses an arc-shaped spaced pile retaining structure for a steep terrain in a mountainous area and an implementation method. An arc-shaped interval pile type soil retaining structure is formed by interval row piles, pressing beams, filling type waist beams and angular point resistance piles at the two ends. According to the structure, soil pressure behind the piles is converted into axial force along the arch axis, the axial force is transmitted to the resistance piles through the pressing beams and the filling type waist beams together, thrust in the arch axis direction is resisted through the resistance piles and passive soil pressure behind the piles together, a safe and stable supporting system is formed, and the problems that a conventional soil retaining structure is large in construction difficulty and high in safety risk are solved. 本发明公开了一种山区陡峭地形弧形间隔桩挡土结构及实施方法；通过设置由间隔排桩、压梁、填充式腰梁以及两端角点抗力桩共同形成弧形间隔桩形式挡土结构。该结构通过将桩后土压力转化成沿拱轴线上轴力，通过压梁和填充式腰梁共同将轴力传递至抗力桩，通过抗力桩和桩后被动土压力共同抵抗拱轴方向的推力，形成安全稳定的支护体系，解