隧道通风斜井十字形隔墙分部施工技术及应用  

Construction Technology and Application of Cross Shaped Partition Wall for Tunnel Ventilation Inclined Shaft

作　　者：董寿强 DONG Shou-qiang(The 3rd Engineering Co.,Ltd.of China Railway 12th Bureau Group,Taiyuan 030024,China)

机构地区：[1]中铁十二局集团第三工程有限公司,太原030024

出　　处：《价值工程》2025年第4期130-132,共3页Value Engineering

基　　金：中铁十二局集团有限公司科技研究开发计划项目(集团2020研-37号)。

摘　　要：特长隧道一般利用辅助坑道采取分段纵向式通风,辅助坑道的送、排风系统构造方式也不拘一格,其中,斜井十字形隔墙即为众多通风方式构造中较为新颖的一种。十字形隔墙整体式施工需要多台台车配合完成,存在多处施工难题,施工效率低。基于以上背景,依托仁沐高速公路五指山特长隧道通风斜井,经过多个现场循环施工试验,研发形成了十字形隔墙分部施工技术,该技术先浇筑下部“T”型隔墙,再浇筑上部“I”型隔墙,纵向多个工序同步进行,减少了循环时间,加快了施工进度,颇具借鉴意义。Extra long tunnels generally use auxiliary tunnels to adopt segmented longitudinal ventilation,and the construction methods of the supply and exhaust systems in auxiliary tunnels are also not limited.Among them,the inclined cross shaped partition wall is a relatively novel ventilation method.The overall construction of the cross shaped partition wall requires the cooperation of multiple trolleys,which presents multiple construction difficulties and low construction efficiency.Based on the above background,relying on the ventilation inclined shaft of Wuzhishan Extra long Tunnel on Renmu Expressway,after multiple on-site cyclic construction tests,a cross shaped partition wall subdivision construction technology has been developed.This technology first pours the lower"T"-shaped partition wall,and then pours the upper"I"-shaped partition wall.Multiple vertical processes are carried out synchronously,reducing cycle time and accelerating construction progress,which is of great reference significance.

关 键 词：通风斜井 十字形隔墙 分部施工 错步施工 

分 类 号：U458[建筑科学—桥梁与隧道工程]