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            交叉作业下换乘通道紧邻既有车站墙体破除施工技术*
            • 作者: 多冉伟,杨宏刚,刘奥林
            论文摘要

            交叉作业下换乘通道紧邻既有车站墙体破除施工技术*

            多冉伟1,杨宏刚1,刘奥林2

            (1.中铁一局集团第三工程分公司,陕西 宝鸡 7210062.中南大学土木工程学院,湖南 长沙 410075)

            [摘要]南宁市金湖广场站是在建南宁地铁3号线和已运营地铁1号线的换乘站,两站通过换乘通道连接。换乘通道施工区域狭小且与处于交叉作业环境下,这对换乘通道紧邻既有车站墙体的破除及渣体外运产生制约。同时考虑避免换乘通道施工过程中对1号线运营造成过大干扰,通过采用水钻加绳锯切割技术破除既有车站墙体并依托风亭基坑内现有支撑搭建运料操作平台外运渣体,较好地解决了既有车站运营保护、交叉作业下各项施工安全进行等难题。

            [关键词]地下工程;换乘通道;交叉作业;转料平台;施工技术

            [中图分类号]TU745.3     [文献标识码]A     [文章编号]1002-8498(2021)19-0018-06

            Wall Breaking Construction Technology of Transfer Channel Adjacent to the Existing Station Under Cross working Environment

            DUO Ranwei1, YANG Honggang1, LIU Aolin2 

            (1.Third Engineering Branch, China Railway First Bureau Group, Baoji, Shaanxi 721006, China; 2.College of Civil Engineering, Central South University, Changsha, Hunan 410075, China)

            Abstract:Nanning Jinhu Square station is a transfer station of Metro Line 3 under construction and Metro Line 1 under operation with transfer channel below the Minzu Avenue. The construction of transfer channel faced many difficult problems such as narrow construction area and the cross working environment. As for the removal of the transfer channel adjacent to the existing station wall and slag transport, in addition to the above factors, it is also necessary to consider to avoid excessive interference caused by construction on Line 1 operation, which is difficult and risky. By using the technology of water drill and rope saw, the existing station wall was broken and the external slag body of the material handling platform was built based on the existing support in the foundation excavation of wind pavilion to solve the existing station operation protection, cross working under the various construction security and other challenges.

            Keywords:underground engineering; transfer channel; cross working; transfer platform; construction

            *国家自然科学基金(51778637

            [作者简介]多冉伟,高级工程师,Email853739080@qq.com

             

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