城市中心复杂环境条件下地下空间结构施工关键技术  

KEY CONSTRUCTION TECHNOLOGY FOR DOWNTOWN UNDERGROUND SPACE STRUCTURE UNDER COMPLEX ENVIRONMENTAL CONDITIONS

作　　者：金振 王超迪 JIN Zhen;WANG Chao-di(Zhejiang Provincial Yijian Construction Group Ltd.,310012,Hangzhou,China)

机构地区：[1]浙江省一建建设集团有限公司,杭州310012

出　　处：《建筑技术》2024年第19期2308-2311,共4页Architecture Technology

基　　金：浙江省住房与城乡建设厅建设科研项目(2023K088、2022K215)。

摘　　要：地处城市中心的地下空间结构场地被借道,岩层复杂,下卧多个软弱破碎层,地下障碍物众多,工期倒置,周边环境敏感,施工难度大。在桩基整体施工组织管理、一柱一勘多钻头桩基施工、“两墙合一”施工、先浅后深逆向施工、深基坑动态设计与动态施工、大型群塔选型布置与转换等方面采取了相关技术措施,解决了工程难题,可为其他类似工程提供借鉴。Underground space structures in downtown are affected by tailgating,complex rock layers,underlying fractured weak layers,numerous underground obstacles,construction reversal,sensitive surrounding areas and difficult construction.Appropriate technical measures were taken in the overall construction organization and management of pile foundations,one-by-one column survey,multi-drill pile foundation construction,two-in-one wall construction,reverse construction from shallow to deep walls,dynamic design and construction of deep foundation pits,large multi-crane layout and change and the like,to solve engineering problems and provide a reference for other similar projects.

关 键 词：岩性 敏感 两墙合一 逆向施工 转换 

分 类 号：TU74[建筑科学—建筑技术科学]