摘要
目前地铁明挖车站多采用先主体结构、后附属结构的施工方法,主体围护结构通常采用地下连续墙,附属结构完成后与主体结构联通时需在地下连续墙上开凿门洞。当连接段很长时,门洞开凿施工难度及危险性大增。对此提出一种新的地下连续墙门洞整体开凿技术,将门洞上部地下连续墙自重传递到主体结构顶板上,保证了超长连接段地下连续墙门洞开凿的施工安全且施工便捷。该方法用于苏州地铁方洲公园站长达88m的连接段中并取得成功。
At present,the construction method of main structure firstly and then auxiliary structure is mostly adopted in the metro open-cut stations.The main enclosure structure usually adopts the underground diaphragm wall.After the auxiliary structure is completed,it is necessary to dig a hole in the underground diaphragm wall when its connection with the main body structure is completed.When the connecting section is very long,the difficulty and danger of opening the door opening increases greatly.For the above,a new overall excavation technology of the underground diaphragm wall doorway is proposed,which transfers the weight of the underground diaphragm wall above the doorway to the top of the main structure,ensuring safety and convenience of construction of ultra-long connecting section of the underground continuous wall doorway.The method was successfully used in 88 m length connecting section of Fangzhou Park Station of Suzhou Metro.
作者
孔锴
刘肖
KONG Kai;LIU Xiao(BCEG Civil Engineering Co.,Ltd.,100015,Beijing,China)
出处
《建筑技术》
2021年第8期971-973,共3页
Architecture Technology
关键词
地铁车站
洞门整体开凿
传力体系
metro station
overall excavation of tunnel door
force transmission system