[提要]  研究了圆形截面仅在支护桩邻土面配筋的预应力钢筋砼支护桩的合理性，并推导了其配筋计算公式和设计计算图表，供设计人员参考。
[关键词]  圆形截面 支护桩 预应力钢筋砼 配筋计算

The reasonablity of circular prestressed reinforced concrete (PRC) retaining piles reinforced in the tensile side was presented. The formula of its reinforcements were derived, and the design table and figure were given for designers.
Keywords: circular section; prestressed reinforced concrete; retaining pile; reinforcement calculatiion