抢修抢建技术中软土地基有效桩长的确定方法研究

On Effective Pile Length Calculation Method of Soft Ground in Rush to Repair and Construction

地基是各种交通设施的关键部位,是抢修抢建的主要内容。软土地基地质条件差,修建桥梁及涵洞时遇到软土地基多采用水泥搅拌桩进行处理,会存在有效桩长的问题。根据刚性基础下桩土顶面的位移协调条件,从沉降的角度出发,得到了柔性桩复合地基有效桩长的计算方法。

The ground is the key to various transport facilities,it becomes the main element to the rush to repair and construction.When the bridges and culverts construct on soft ground,concrete mixing piles are usually used because soft ground has poor geological conditions,the issue of effective pile length will exist at this time.In this paper,the effective pile length of soft composite pile is calculated from the point of the settlement which is based on the displacement harmony condition of the rigid ground.