, 6 g 坊 第47 综合管廊的纵断满足自流排水需求,其最小纵坡不小于
of prefabricated pipe gallery
ZHONG Xin % ； 最大纵坡W14% ； 超过10%区段，在人员通道部位设
(China Construction Second Engineering Bureau No. 1 防滑地坪或台阶;除特殊注明外标准段根据设置出线口、出
Construction Engineering Co. , Ltd. , Beijing 100176, China) 入口的设置需求，覆土深度控制在路面标高以下3-2 mo
Abstract: As the lifeline of urban infrastructure, urban under 管廊纵断面设计
ground utility tunnel can meet the needs of people s livelihood, 综合管廊的纵断满足自流排水需求,其最小纵坡不小于
improve the city s comprehensive carrying capacity, drive effec % ； 最大纵坡W14% ； 超过10%区段，在人员通道部位设
tive investment, and improve the quality of new urbanization de 防滑地坪或台阶;除特殊注明外标准段根据设置出线口、出
velopment. At present, the main structure of underground utility 入口的设置需求，覆土深度控制在路面标高以下3-2 mo
tunnel in China mainly includes cast - in - place and prefabrica 管廊通风口设计
ted construction technology. Mianyang utility tunnel project a- 综合管廊高压舱、水电综合舱、污水仓采用自然进风、机
dopts prefabricated pipe gallery, which has the advantages of fast
械排风的通风系统;燃气舱采用机械进风、机械排风的通风
construction speed, short constructi
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