汾河二坝除险加固工程拦河闸地基分析处理

Analyzing and Treating the Issues of Sluice Foundation in NO.2 Fenhe Barrage Peril-obviating and Consolidating Project

汾河二坝拦河闸地基存在着天然地基承载力不足和8度地震时地基土液化两个问题,为此,工程采用了振冲碎石桩形成复合地基的处理方案,处理后检测试验结果显示,该地基处理方案满足了工程技术要求,是有效合理的。

There were two issuse in sluice foundation NO.2 Fenhe Barrage Peril-obviating and Consolidating Project： 1 ）The Bearing capacity of foundation was not sufficient ; 2）The foundation earth could liquefy under the condition of seismic intensity of Ⅶ degree. For the sake of these, in this project＇s construction process, the composite foundation treatment scheme by vibro-replacement gravel piles was adopted. After the pile foundation had been completed, the check and test results indicated that this foundation treatment scheme satisfied the engineering technique demand, and it was reasonable.