本文对库尔曼图解法进行了改进,建议按优选学的步骤确定挡土墙后填土破裂面,使库尔曼图解法在理论上更趋于完善;提出土楔体重量比η和墙后土楔体相对自重的概念,以相对自重代替自重,使计算过程更具有图解法的特点;文中列出了一些常见情况η的表达式,最后还给出了计算实例。 In this paper, the Kurman graphic method is improved. It is suggested that the backfill surface of the retaining wall should be determined according to the optimization procedure, so that the Kurman diagram method is theoretically more perfect; the weight ratio η and wall of the wedge body are proposed. The concept of the relative weight of the rear soil wedges replaces the self weight with the relative weight, which makes the calculation process more characteristic of the graphic method. The expressions of some common cases η are listed in the text. Finally, the calculation examples are given.