[1]涂青,朱艳薇,王植林,等.城市道路下大口径污水压力管道的止推优化设计[J].中国给水排水,2025,41(14):69-76.
TUQing,ZHUYan-wei,WANGZhi-lin,et al.Thrust Optimization Design for Large-diameter Sewage Pressure Pipelines beneath Urban Roads[J].China Water & Wastewater,2025,41(14):69-76.
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TUQing,ZHUYan-wei,WANGZhi-lin,et al.Thrust Optimization Design for Large-diameter Sewage Pressure Pipelines beneath Urban Roads[J].China Water & Wastewater,2025,41(14):69-76.
城市道路下大口径污水压力管道的止推优化设计
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第41卷
期数:
2025年第14期
页码:
69-76
栏目:
出版日期:
2025-07-17
- Title:
- Thrust Optimization Design for Large-diameter Sewage Pressure Pipelines beneath Urban Roads
- Keywords:
- sewage pressure pipeline; thrust design; urban roads; large diameter
- 摘要:
- 污水压力管道作为城市污水转输的主要载体，在现状道路下遇到既有管道、河道等复杂障碍物的情况不可避免，穿越这些障碍物时进行的止推设计尤为重要，一旦发生事故将造成严重的后果；然而城市道路地上交通繁忙，地下管线综合尤为复杂，无论是施工还是使用阶段，管线周边的空间均受到限制，无法设计尺寸较大的支墩。对比分析现行图集、规程中同等外部条件下采用的支墩尺寸和混凝土量，总结出优化的思路和方案。以南京市某城市主干道下新建的DN2 200污水压力管道为例，在保证安全稳定的前提下，管道转弯处采用钢筋混凝土沿线包封的方式，减少对周边空间的占用，避免因支墩尺寸过大带来的地基处理、基坑支护等设计问题，取得了较好的经济和社会效益，可为后续类似工程提供参考。
- Abstract:
- As the primary infrastructure for municipal sewage transfer, sewage pressure pipelines frequently encounter complex obstacles such as existing underground pipelines and watercourses beneath current roadways. The thrust design during the crossing of these obstacles is critically important, as any incident could lead to severe consequences. However, given the heavy above-ground traffic on urban roads and the intricate network of underground pipelines, both the construction and operational phases are constrained by limited surrounding space, which precludes the design of large-sized thrust blocks. This paper compared and analyzed the dimensions of the thrust blocks and the quantity of concrete utilized under identical external conditions based on the current atlas and regulations, leading to the summarization of optimization concepts and strategies. The newly constructed DN2 200 sewage pressure pipeline project located beneath the main urban roads in Nanjing adopted the method of reinforced concrete encasement along the pipeline bends. This approach was implemented under the premise of ensuring safety and stability, aiming to minimize the occupation of surrounding space and prevent design challenges such as foundation treatment and pit support that could arise due to the excessive dimensions of thrust blocks. Consequently, it achieved superior economic and social benefits, providing valuable reference for subsequent similar projects.
更新日期/Last Update:
2025-07-17