软土地基半支护式挡墙的研究及应用

Study and Application of Semi-supported Retaining Wall on Soft Soil Foundation

提出半支护式挡墙的计算模型,对上部挡墙和下部支护结构的受力特点、几何协调性等问题作出研究。半支护式挡墙作为永临结合的结构,能节约一定的工程投资,其较常规挡墙,显著节省开挖、降低墙后高填土引起的整体失稳风险;较常规支挡结构,则一定程度减少桩顶变形和桩身内力,提高安全性。

In this paper,the calculation model of semi-supported retaining walls is proposed,and the mechanical characteristics and geometric coordination of the upper retaining wall and the bottom supporting structure are studied.Compared with conventional retaining walls,semi-supported retaining walls can significantly save the excavation and reduce the overall instability risk caused by high embankment behind the wall.Compared with the conventional retaining structure,the semi-supported retaining wall can reduce to a certain extent the deformation of the pile top and the internal force of the pile body,and also improve the safety.