王立长   尚春雨
    （大连市建筑设计研究院  116021）

[提要]  网壳对支撑结构产生很大的水平推力，其基础设计是非常重要的。结合工程实例，通过在欠固结地基土的场地条件下，采用振冲碎石桩方法加固地基，设计了特殊的抗推基础，满足了上部结构的需要。经过现场静载试验，验证了设计中取用参数的可靠性。
[关键词]  欠固结土  抗推基础  振冲碎石桩  静载试验  摩擦系数

Because large horizontal forces act on the sustaining structure from reticulated shell, it is important to design foundation. Dynamlc-ramming gravel pile was used to reinforce foundations in undercomsolidated soil and a special foundation was designed against pushing in a project, which met the need of the upper structure. The situ dead-load experiment verifies that the parameter in designing is reliable.
Keywords: underconsolidated soil;  pushing foundation; dynamlc-ramming gravel pile; static test; friction factor