摘要
以福建平潭坛西大道南段综合管廊工程为例,探讨城市综合管廊入廊污水管道及重要节点的设计。考虑到廊内污水管的敷设特点及污水渗漏的危害,入廊重力流污水管道应采用接口密闭性能好、强度高的防腐蚀性压力管用管材;污水支管接入及变坡点处均设伸顶直筒井并设置通气孔,通气孔引至廊外绿化带以上50 cm,伸顶井间距不大于120 m、直径不小于1 000 mm,以方便管道清通设备的使用;对于进料口转换层,净高应不小于2. 5 m,以方便设置电动起重装置运送材料;如果综合舱与电力舱共用转换层,转换层应根据与舱室的连通位置以特级防火卷帘及甲级防火门进行防火分隔。
Taking the utility tunnel project in the south section of Pingtan Western Avenue in Fu- jian Province as an example, the design of sewage pipe and important nodes in urban utility tunnel was discussed. Considering the installation characteristics of the sewage pipe and the danger of wastewater leakage in the tunnel, the pipe with advantages of anti-corrosion, pressure, good sealing performance and high strength should be adopted as the gravity flow sewage pipe in the tunnel. Manholes directly to the ground and vent holes were set up in sewage branch pipe access and slope change point. In order to en- sure the pipeline clearing equipment working well, the vent holes were introduced to the 50 cm above the greening belt outside the tunnel, the distance between the manholes was not more than 120 m, and the diameter was not less thanФ1 000 mm. For the feed port transfer floor, the net height should be no less than 2.5 meters to facilitate the installation of the electric lifting device to transport the material. If the transfer layer was shared between the composite and electric compartments, the fire partition area was separated by top-grade anti-fire rolling curt and A class fireproof door in the transfer floor.
作者
曹益宁
董永红
CAO Yi-ning;DONG Yong-hong(Shenzhen Municipal Design ＆ Research Institute Co.Ltd.,Shenzhen 518029,China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2018年第20期67-71,共5页
China Water & Wastewater
关键词
综合管廊
节点设计
污水管道入廊
utility tunnel
design of important nodes
sewage pipeline in the tunnel
