复杂地质条件下盾构穿越基础薄弱的建构筑物施工技术研究  

Research on Construction Technology for Shield Tunneling Through Buildings with Weak Foundations under Complex Geological Conditions

作　　者：董维奇 DONG Weiqi(Guangdong Huatun Construction Group Co.,Ltd.Guangzhou 510800,China)

机构地区：[1]广东华隧建设集团股份有限公司,广州510800

出　　处：《广东土木与建筑》2024年第7期73-75,102,共4页Guangdong Architecture Civil Engineering

摘　　要：依托广州市轨道交通12号线工程,系统地阐述分析软弱地层条件下盾构穿越建构筑物所存在的风险,并研究提出一套包括多方面措施的安全控制体系。研究表明:通过“静压锚杆桩+钻注一体注浆+筏板叠合板+管片止水环”的新型保护体系,可以满足盾构穿越房屋时房屋的沉降需求,同时在穿越施工期间房屋住户全部进行临迁,把可能存在的风险最小化。Based on the Guangzhou Metro Line 12 project,systematically elaborates and analyzes the risks of shield tunneling through buildings and structures under weak geological conditions,and proposes a safety control system that includes multiple measures.Research has shown that a new protection system is adopted,which includes"static pressure anchor pile+drilling injection integrated grouting+raft laminated plate+pipe sealing ring";It can meet the settlement needs of houses when shield tunneling passes through them,and at the same time,all residents of the houses will be temporarily relocated during the construction period,minimizing possible risks.

关 键 词：盾构隧道 下穿 房屋 复杂地质 基础薄弱 

分 类 号：TU998[建筑科学—市政工程]