Based on field information of bored piles, an analysis is made on factors effecting filling coefficient; with a method of calculating sectional filling coefficients and drawing histogram by computer proposed.

• 以钻孔灌注桩现场资料为基础，分析了充盈系数的影响因素，提出了应用微机计算分段充盈系数，作直方图的方法，并给出应用实例。