有桩基的深基础施工板桩墙计算方法的探讨

An analysis and discussion on caiculation method for the construction of deep foundationsheet pile wall bracing

在墙前土体处于极限平衡状态时,假定桩和桩间土形成不动带,将不动带和不稳定区土体间的粘结力与摩擦力作用视为附加被动土压力加以分析,推导出在极限应力状态下,单位板墙长度上,由粘结力引起并作用在单位板桩墙深度范围内的附加稳定力公式。将该方法运用到城市高层建筑软土地基深基础施工中,取得了较好的技术经济效益。

While the soil body behind the retaining wall is in the limit equilibriun state, it has been generally assumed that there is a stable staic belt existing between the soil and pile. Furthermore. under- going the limit equilibrium state, it is assumed also that in this static belt and those unstable soils' cohesive and frictional forces being designated as the supplemented passive earth pressure, has been eventually ana- lyzed and derived into a general supplemental stable force for the design of per unit length of sheet pile wall bracing. This formula is generally uaed for the design and construction of deep foundation of highrise buildings and gained a rather better technical and economical benefit.