三角支架侧墙模板代替换撑技术在盾构始发井施工中的应用  

TECHNOLOGY OF TRIANGULAR SUPPORT SIDE WALL FORMWORK INSTEAD OF SUPPORT IS APPLIED IN THE CONSTRUCTION OF SHIELD SHAFT IN SUBWAY STATION

作　　者：宁波 Ning Bo(BCEG Civil Engineering Co.,Ltd.,100015,Beijing,China)

机构地区：[1]北京建工土木工程有限公司,北京100015

出　　处：《建筑技术》2024年第8期922-924,共3页Architecture Technology

摘　　要：以北京地铁17号线某站项目为例,对地铁车站盾构始发井段钢支撑换撑施工工艺进行优化研究。在保证地铁车站基坑稳定的前提下,探寻到一种三角支架侧墙模板代替原设计换撑的技术方案,缩减了车站盾构始发井施工工期,确定了盾构始发的工期节点,使工程工期更加合理有效。Taking a station project of Beijing subway line 17 as an example,the construction technology of steel support replacement for shield shaft section of subway station is optimized.On the premise of ensuring the stability of the foundation pit of subway station,a technical scheme of replacing the original design with the triangular support side wall template is explored,which reduces the construction period of the shield shaft of the station,determines the construction period node of the shield shaft,and makes the project period more reasonable and effective.

关 键 词：地铁车站 盾构始发井 三角支架 换撑 

分 类 号：TU74[建筑科学—建筑技术科学]