桩底掏土法在带桩高层建筑纠倾中的应用  

Application of Digging at the Bottom of the Pile on Rectifyication for High-rise Buildings with Pile Foundation

作　　者：贾媛媛[1,2] 付素娟 

机构地区：[1]河北建研科技有限公司,石家庄050021 [2]河北省既有建筑综合改造工程技术研究中心,石家庄050021 [3]河北省建筑科学研究院,石家庄050021

出　　处：《特种结构》2017年第6期41-46,共6页Special Structures

基　　金：河北省建设科学技术研究计划(2014-104)

摘　　要：结合某带桩高层建筑纠倾工程实例,通过上部结构、桩基础、地基土体三方面对产生倾斜的原因进行了分析。根据建筑结构和下部土体,对建筑物采用桩筏止倾加固,采用桩底掏土法对该建筑物进行迫降纠倾施工。工程实践表明:桩底掏土法能使建筑物安全、平稳、线性地回倾,对高层建筑物纠倾具有很高的借鉴价值。Based on an example of a rectification project in high-rise building with pile foundation, this paper analyzed the reasons for inclination integrated upper structure, foundation and soil foundation. According to the form of the structure and the lower part of the soil, it use piled raft to end dumping and reinforced buildings,the method of digging at the bottom of the pile was used to rectification of the buildings. The project practice showed that the method of digging at the bottom of the pile can ensure safety, stability and linear for building rectification. It would be useful for rectifying inclined high-rise buildings.

关 键 词：带桩高层建筑 桩底掏土法 纠倾 

分 类 号：TU753.3[建筑科学—建筑技术科学] TU978