港珠澳大桥东人工岛无填料振冲技术的参数设置及应用  

Non-filler Vibroflotation Technique Parameter Settings and Applications in the East Artificial Island Project of Hong Kong-Zhuhai-Macao Link

作　　者：黄存东 王聪 HUANG Cun-dong;WANG Cong(No.2 Engineering Company Ltd.of CCCC Third Harbor Engineering Co.Ltd.,Shanghai 200122,China)

机构地区：[1]中交三航局第二工程有限公司

出　　处：《公路》2018年第8期151-154,共4页Highway

摘　　要：振冲法是提高地基承载力、减少沉降的一种快速、经济有效的地基加固方法,分为振冲挤密法、振冲置换法和无填料振冲。结合港珠澳大桥东人工岛工程,基于人工岛软基厚度大、地基情况复杂、周期短、工程量大的工程特性,采用无填料振冲法,通过现场分区对比振冲试验,确定最佳振冲工艺参数,并详细介绍了无填料振冲法用于人工岛软基处理中的应用。Vibroflotation method is a fast,economic and effective foundation reinforcement method to improve the bearing capacity of foundation and reduce subsidence,which is divided into vibroflotation compaction method,the vibration displacement method and non-filler vibroflotation method.Combining with the East Artificial Island of the Hong Kong-Zhuhai-Macao Link Project,based on the project characteristics of thick soft soil foundation of the artificial island,complicated foundation,short cycle,and large work quantities,the non-filler vibroflotation method is adopted,through field partition and comparing vibration impact test,the best process parameters are determined,and the application of nonfiller vibroflotation method in the artificial island soft foundation treatment is introduced in detail.

关 键 词：人工岛软基处理 中粗砂 无填料振冲 工艺参数 

分 类 号：TU753.8[建筑科学—建筑技术科学]