目前高层建筑日益增多,由于建筑功能、地基承载和抗震的需要,基础深埋。但城市用地紧张,地下管线交叉,道路纵横,往往不能采用放坡大开挖的施工方法。这就需要打挡土护坡桩。北京地区近年来采用钻孔灌注桃挡土护坡以代替钢板桩,既减少震动噪音又节省资金,这已是成熟的做法。但对施工技术人员来说,挡土护坡桩的计算还没有成熟的经验。本文将在工作中遇到的 At present, high-rise buildings are increasing, and the foundations are buried deeply because of the building functions, foundation loading and earthquake resistance requirements. However, the urban land is tense, underground pipelines cross, and the roads are often vertical and horizontal. It is often not possible to use grading and excavation methods. This requires the use of earth-sloped piles. In recent years, Beijing has adopted drilling and perfusing peach soil retaining slopes instead of steel sheet piles, which not only reduces vibration noise but also saves money. This is a mature practice. However, for construction technicians, there is no mature experience in the calculation of retaining piles. This article will be encountered in the work