城市地下综合管廊通风口设计分析与研究——以科学大道九龙坡段为例

Analysis and Research on Vent Design of Urban Underground Utility Tunnel in Jiulongpo Section of Kexue Avenue

摘要:

在国家政策的大力引导下，我国综合管廊建设取得长足的发展和进步，综合管廊在解决“马路拉链”问题、提升管线管理效率、集约化开发地下空间、推动产业发展、增强城市韧性等方面具有显著的综合效益。综合管廊通风口的设计直接影响管廊内部环境质量、设备运行安全和人员作业安全，是地下管廊系统中的关键结构和核心载体。依托重庆市科学大道九龙坡段综合管廊工程，通过从断面尺寸、覆土深度、管廊埋深、舱室数量、工程造价、景观效果和后期维护等方面，对不同通风口形式（常规通风口、下沉式通风口和合建通风口）进行综合比选分析，并对下沉式通风口以及长距离通风口进行设计要点分析，并加以总结和分析，以期为同类型项目提供一定的参考和借鉴。

Abstract:

Under the strong national policy guidance, the construction of utility tunnel has achieved the significant development and progress in China. Utility tunnels have the notable comprehensive benefits in resolving the “road zipper” problems, enhancing the pipeline management efficiency, intensively developing the underground space, promoting the industrial development, and strengthening the urban resilience. The design of utility tunnel vents directly impacts the environmental quality, equipment operational safety and personnel work safety within the utility tunnel. The vents are the key structures and core carriers in the underground utility tunnel systems. Relying on the Chongqing Kexue Avenue Jiulongpo Section Utility Tunnel Project, the different air vent forms (conventional air vents, sunken air vents and co-constructed air vents) are comprehensively compared and analyzed from the aspects such as cross-sectional dimensions, soil cover depth, burial depth of utility tunnel, number of compartments, engineering cost, landscape effect and later maintenance. The design essentials of sunken air vents and long-distance air vents are analyzed and summarized in order to provide some reference and experience for the similar projects.