ZHOURong,WANGShao-gui,YANXin-xiu.Design Optimization of Shaoguan No. 3 Wastewater Treatment Plant Incoming Trunk Main Crossing Beijiang River Section[J].China Water & Wastewater,2022,38(8):121-126.
韶关市第三污水处理厂进厂干管穿越北江段设计优化
- Title:
- Design Optimization of Shaoguan No. 3 Wastewater Treatment Plant Incoming Trunk Main Crossing Beijiang River Section
- Keywords:
- Beijiang River levee; pipe jacking; pipe sinking; steel cofferdam
- 摘要:
- 韶关市第三污水处理厂进厂干管穿越北江段工程，通过对方案适用性、施工难度及风险、通航、防洪、环境、景观、运行安全、造价等关键影响因素进行全方位的比较和分析，因地制宜地选择顶沉结合的管道过江工艺，即跨堤和过江分段采用顶管和沉管施工，并创新性地提出采用钢围堰井解决顶/沉管接合处管道连接难题，可降低施工风险，确保工程安全实施。总结了顶管、沉管、顶沉结合等实施过程中堤身加固、防渗、顶沉接合处理等技术重点，有针对性地提出了综合性解决措施。设计方案既可满足污水进厂的功能性需要，又能保护大堤结构、北江航运的安全，为污水管道穿越大江大河提供了可借鉴的工程设计经验。
- Abstract:
- According to local conditions, a pipe crossing river technology combined with pipe jacking and pipe sinking is selected for trunk main of Shaoguan No. 3 wastewater treatment plant to cross Beijiang River section by comprehensively comparing and analyzing the key influencing factors such as scheme applicability, constructability and risk, shipping, flood control, environmental protection, scenery, operation safety and cost. Pipe jacking and pipe sinking technologies are adopted in the section to cross the levee and the river, and steel cofferdam well is innovatively proposed to solve the pipe connection problem between pipe jacking and pipe sinking, which can reduce the construction risk and ensure the safe implementation of the project. The technical key points of levee reinforcement, anti-seepage and connection of jacking and sinking in the implementation process of pipe jacking, pipe sinking and the combination of pipe jacking and pipe sinking were summarized, and the comprehensive solutions were proposed. The design not only meets the functional needs of sewage entering into the plant, but also protects the levee structure and the shipping safety in Beijiang River, which provides engineering design experience for sewage pipeline crossing great rivers.
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