北京地区桩基工程沉降计算方法的研究

通过对北京桩基工程沉降实测数据统计、计算,整理,结合北京地区地基土质特性,对桩基土的变形规律进行分析,并运用实体深基础法计算桩基础沉降量,与实测沉降值对比,推出该方法的修正系数,找到一种适合北京地区土质特性、满足基础设计要求、分析结果接近实际以及简便实用的沉降分析方法,以用于工程初步设计之中。

Based on many case studies and field measurement data of piled foundation in Beijing area, combined with the foundation soil characteristic observation, the calculating method of the settlement of piled foundation has been analyzed in detail. The basic rule of widely used Equivalent-deep-foundation method is applied and a set of empirical parameters is suggested to modify the calculated settlement piled foundation considering different influence factors compared with the field data to give a better prediction result. This study applies an effective method to the designers to predict the settlement of piled foundation in Beijing Area.