振冲法处理某闸基液化砂土工程应用效果分析  

Effect Analysis on Engineering Application of Liquefied Sand of Sluice Foundation with Vibroflotation Method

作　　者：魏红[1] 栾明龙[1] 袁鸿鹄[1] 

机构地区：[1]北京市水利规划设计研究院,北京100048

出　　处：《施工技术》2011年第9期88-90,共3页Construction Technology

摘　　要：振冲法利用振冲器的强力振动和高压水冲加固土体,可以达到提高地基承载力、减小建筑物地基不均匀沉降、消除地基液化的目的。针对某闸在利用振冲碎石法消除饱和砂土液化问题时失效,介绍了振冲法在工程中的应用情况,从工程地质勘察、振冲处理设计、振冲施工3方面分析了振冲处理液化砂土效果,探讨了导致这种情况出现的原因,并得出结论。Vibroflotation method refers to the method that soil is strengthened by strong vibration of vibroflotation device and high jetting,thus,foundation bearing capacity is improved,uneven settlement of building foundation value is decreased,foundation liquefaction is eliminated.According to the failure about some gate when vibroflotation method are adopted to eliminate saturated sand liquefaction,the application of vibroflotation method,the effect of treating liquefiable sandy by vibroflotation method is analyzed with three aspects including engineering geological exploration and vibroflotation treatment design as well as vibroflotation construction,the reason is studied so as to avoid similar events.

关 键 词：振动 饱和 液化 砂土 效果 

分 类 号：TU472.31[建筑科学—结构工程]