武汉市大东湖核心区污水深隧传输系统工程设计  

Design of Dadonghu Core Area Wastewater Deep Tunnel Transmission System Project in Wuhan

作　　者：杜立刚 邹惠君 饶世雄 石亚军 吴志高 李尔 雷晶[2] DU Li-gang;ZOU Hui-jun;RAO Shi-xiong;SHI Ya-jun;WU Zhi-gao;LI Er;LEI Jing(Wuhan Municipal Engineering Design and Research Institute Co.Ltd.,Wuhan 430023,China;Hubei Design Branch of Pan-China Construction Group Co.Ltd.,Wuhan 430023,China)

机构地区：[1]武汉市政工程设计研究院有限责任公司,湖北武汉430023 [2]泛华建设集团有限公司湖北设计分公司,湖北武汉430023

出　　处：《中国给水排水》2020年第2期74-78,共5页China Water & Wastewater

摘　　要：随着城市开发建设的迅速推进,污水处理厂等环境敏感排水设施与城市用地相互制约的问题日益突出,采用排水深隧技术外迁现有污水处理厂日益重要。武汉市大东湖核心区污水传输系统工程利用地下深层空间采用排水深隧技术将沙湖、二郎庙、落步咀三厂污水转输至城市外围,汇入规划的北湖污水处理厂进行集中处理,以释放现状污水处理厂土地资源存量。工程包括地表完善系统和污水深隧系统。地表完善系统中采用了强化的污水预处理工艺和涡流式入流竖井。污水深隧系统采用压力流输送方式,设计正常运行流速为0. 7 m/s≤v≤2. 5 m/s,最低流量时流速≥0. 65 m/s。主隧直径为D3 000~D3 400 mm,埋深为30~42 m,坡度为0. 000 65,采用盾构法施工;支隧直径为2-D1 500 mm,埋深约20~21 m,坡度为0. 000 5,采用顶管法施工。With the fast advance of urban development and construction,the mutual restriction between environment-sensitive wastewater treatment facilities such as wastewater treatment plant and urban land have been becoming outstanding increasingly.The wastewater transmission system project of Dadonghu core area in Wuhan used the deep underground space to transfer the wastewater from Shahu,Erlangmiao and Luobuzui three WWTPs to the outskirts of the city by using the deep tunnel technology,and then to the planned Beihu wastewater treatment plant for centralized treatment,so as to release the existing land of the WWTPs.This project included surface improvement system and wastewater deep tunnel system.The enhanced wastewater pretreatment process and vortex flow shaft were adopted in the surface improvement system.The wastewater deep tunnel system adopted pressure flow transport mode,the designed normal flow rate was 0.7 m/s≤v≤2.5 m/s,and the minimum flow rate was not less than 0.65 m/s.The main line tunnel,diameter was D3000-D3400 mm,buried depth was 30-42 m and slope was 0.00065,both of which adopted shield construction.The branch line tunnel,diameter was 2-D1500 mm,buried depth was 20-21 m and slope was 0.0005,adopting pipe jacking construction.

关 键 词：大东湖 污水传输 深隧传输 

分 类 号：TU992.3[建筑科学—市政工程]