中文摘要：

现行《建筑桩基技术规范）JGJ94-2008中根据土的物理指标与承载力参数之间的经验关系确定单桩竖向承载力在沛屯地区应用中发现有较大误差。收集了沛屯地区比较有代表性的11例工程勘察资料及桩基质量检测报告，从影响桩侧阻力和桩端阻力发挥因素方面分析了误差产生的原因，通过MATLAB编程对收集的资料进行统计分析，得出黏土、粉土与含砂姜黏土的极限桩侧阻力修正系数和极限桩端阻力修正系数，从而建立了符合该地区管桩实际承载力的经验计算公式，为这一桩型在该地区实际工程中的应用提供了依据。

英文摘要：

It＇s inappropriate when applied to Peitun area for the existing Technical Code for Building Pile Foundations JGJ94--2008 in accordance with soil physical indicators and the empirical relationship between the bearing capacity of single pile identified capacity. This thesis concludes uncovers the reason for errors from the impact of side resistance and tip resistance factors based on data including investigation data of 11 projects and reports of pile foundation detection. After the statistics, analysis and calculation of collected data with the method of MATLAB programming are made. The authors obtain clay, silt and clay with lime concretion ultimate resistance of correction factor and the ultimate tip resistance correction factor. They also establish the experiential design formulas of bearing capacity in this area, which offers reference frame for the application of pipe pile.