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结合福建省平潭市政道路项目,叙述了综合管沟的常见形式,提出两种方案,进行比选。比选的具体方法是,成立评定小组制订比选规则表,总结两种方案的优缺点,由小组成员进行评分,选取平均分高的方案。基于现场调研和有限差分软件Flac3D建模模拟,对比选方案进行数值分析,重点分析了影响综合管沟安全性的关键位置,提出了评价市政综合管沟的安全方法。该方法定义了一个安全系数,可对综合管沟角部加强提供参考,供其他类似城市的综合管沟的设计及施工借鉴。
Combined with the Pingtan municipal road project in Fujian Province, the common forms of integrated trench management are described, and two options are proposed for comparison. The specific method of comparison is to set up a rating panel to formulate a selection rule list, summarize the advantages and disadvantages of the two options, and score the panel members to select the program with the highest average score. Based on field investigation and finite difference software Flac3D modeling and simulation, comparative analysis was conducted for numerical analysis. The key positions influencing the safety of integrated pipe ditches were analyzed emphatically. A safety assessment method for municipal pipe ditches was proposed. This method defines a safety factor that can provide a reference for strengthening the corner of integrated pipe ditches for the design and construction of integrated pipe ditches in other similar cities.