三种地基处理方法提高某水闸基桩水平承载力效果对比研究

工程建设中经常会遇到软弱地基土,它们必须经过处理才能满足强度和变形的要求.结合曹娥江大闸枢纽工程,对三种地基处理方法下(碎石振动碾压法、振动碾压法和振捣法)基桩的受力特性进行了分析.通过单桩水平静载荷试验得出结论,三种方法对桩水平承载力都有很大的提高,特别是碎石振动碾压法和振动碾压法的效果最显著.

Investigation on the Effects of Three Foundation Treatment Mmethods used to Improve a Clough's Piles Horizontal Bearing Capacity

Soft foundation is usually found in the engineering construction which can satisfy the requirement to strength and transformation only to be treated.Combing with the sluice key project in Cao-e River,this paper analyzes stress characteristics of piles by three methods to treating soft foundation like gravel compaction by vibrating roller,compaction by vibrating roller,and vibrating and tamping method.According to the horizontal static load test of single pile,we conclude that all three methods can improve the horizontal bearing capacity of piles,and especially the effectiveness of gravel compaction by vibrating roller and compaction by vibrating roller methods are remarkable.