长期以来,我国城市管线大多是单独敷设在地下,随着城市建筑规模不断扩大,各类城市管线的数量和规模正在不断扩大,城市管线单独敷设所带来的问题也日益严重。因此,必须寻求更为高效、便捷和安全的管理方式和技术手段。地下综合管廊是指在城市地下用于集中敷设电力、通信、广播电视、给水、排水、热力、燃气等市政管线的公共隧道,建设综合管廊可使城市基础设施得到更加高效的利用和管理。选取重庆市科学大道一期综合管廊及其内敷设的管线作为研究实例,核算城市管线采用综合管廊敷设和单独地下敷设的各项成本,并对成本进行分析,以给出城市管线敷设方式的相关建议。

For a long time, most of the urban pipelines in China have been laid underground separately. However, with the continuous expansion of urban construction, the number and scale of various urban pipelines are increasing, and the problems caused by separate underground laying are becoming increasingly serious. Obviously, more efficient, convenient, and safer management methods and technical means must be sought. At the same time, fully utilizing the underground space has become an inevitable trend, especially when the urban surface is already very crowded. The utility tunnel is an underground tunnel system that integrates urban infrastructure such as pipelines, cables, and communication lines. Constructing utility tunnels can make the utilization and management of urban infrastructure more efficient. Using the first phase of the Science Avenue Utility Tunnel in Chongqing and its internally laid pipelines as a research case, this article calculates the costs of laying urban pipelines using utility tunnel and separate underground laying, analyzes the costs, and provides relevant suggestions for the laying method of urban pipelines.