阳吉宝
    （上海市民防地基勘察院 200232）

[提要]  通过对疏桩基础受力机理的分析，得出疏桩基础中的桩与桩间土安全系数Ki，K2的确定方法，同时研究了K1，K2与桩间距的关系。
[关键词]  疏桩基础 安全系数 承载力

Based on the analysis of the behavior of the sparse pile foundation, safe coefficient about bearing capability of piles( Ki)and safe coefficient with respect to soil between piles( K2)are determined. The relationship among Ki, K2 and piles spacing are also discussed.
Keywords:  sparse pile foundation; safe coefficient; bearing capability