隧道围护SMW工法桩遗留型钢拔除施工技术  

Construction Technology of Excavation of Residual Steel by SMW Construction Method of Tunnel Enclosure Pile

作　　者：宋智琳 SONG Zhi-lin(Hangzhou Metro Group Co.Ltd.,Hangzhou 310000,China)

机构地区：[1]杭州市地铁集团有限责任公司,杭州310000

出　　处：《工程建设与设计》2022年第4期93-95,共3页Construction & Design for Engineering

摘　　要：根据13号隧道工程的施工经验,通过了解深基坑SMW桩基围护的施工方案及施工工艺,介绍了型钢拔除的施工技术及拔除顺序对地表沉降的影响,得出拔桩顺序为1—5—3—6—4—7—2时,每点的沉降均小于其他两种拔桩顺序产生的沉降,并且对周边环境影响最小。According to the construction experience of No.13 Tunnel project,by understanding the construction scheme and construction technology of deep foundation pit SMW pile foundation enclosure,the paper introduces the construction technology of steel profile pulling out and the effect of pulling out order on the surface settlement.It is concluded that when the pile pulling out order is 1-5-3-6-4-7-2,the settlement of each point is less than the settlement of other two pile pulling order.It also has the least impact on the surrounding environment.

关 键 词：SMW工法 型钢 基坑 围护 监测 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]