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浅滩海配重污水管道水平口对接动态响应研究
Dynamic response of weighted sewage pipeline during horizontal connection at beach and shallow waters
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- DOI:
- 10.3969/j.issn.1001-2206.2026.02.003
- 作者:
- 程培亮, 葛智伟, 于德周
- 作者单位:
- 1. 中国石油集团海洋工程有限公司, 山东青岛 266500; 2. 中国石油大学(华东), 山东青岛 266580; 3. 山东胜睿工程技术咨询有限公司, 山东东营 257100
- 关键词:
- 海底管道; 水平口对接; 船侧舷吊; 浅滩海; 动态放大因子
submarine pipeline;horizontal connection;shipboard side crane;beach and shallow waters;dynamic amplification factor
- 摘要:
- 随着海底污水管道建设规模的持续扩大，为响应国家水资源循环利用与绿色发展战略的要求，新建管道的质量标准不断提高。其中，水平口对接施工作为海底管道建设的关键工序，其施工质量直接决定管道系统的整体安全性与耐久性。以天津市南港工业区某排海管道工程为背景，系统性地对浅滩海环境下配重管道的水平口对接全过程的动态响应进行了分析。通过现场实测与数值模拟相结合的方法，揭示了在铺管船运动与浅滩环境的耦合作用下，管道在提升与下放过程中的力学响应规律，并精确量化了船侧舷吊拉力的动态放大效应。研究结果表明：动态放大因子在管道提升过程中脱离海床阶段及管道下放过程中接触海床瞬间均达到峰值，其中对接时刻为提升过程的最危险工况；依托实测数据，提出一种基于静态响应值快速估算动态响应的简化计算方法。该成果所构建的受限海域管道起始铺设安装技术，为类似工程的精准设计与安全施工提供了关键理论依据和技术支撑。
With the continuous expansion of submarine sewage pipeline construction, quality standards for new pipelines are being increasingly enhanced in response to the national strategy for water resource recycling and green development. As a critical phase in submarine pipeline construction, horizontal connection operation directly determines the overall safety and durability of the pipeline system by its quality. Based on a marine outfall pipeline project in the Tianjin Nangang Industrial Zone, a systematic analysis of the dynamic response during the full process of horizontal connection of a weighted pipeline at the beach and shallow waters was carried out. By combining field measurements with numerical simulations, the mechanical response laws of the pipeline during both lifting and lowering stages under the coupling of pipelaying vessel motion and shoal environment were revealed. The dynamic amplification effect of the shipboard side crane force was accurately quantified. The results show that the dynamic amplification factor peaks during the pipeline lifting stage when it separates from the seabed and during the lowering stage when it contacts the seabed, with the connection stage identified as the most critical condition during lifting. According to the measured data, a simplified calculation method was proposed to rapidly estimate the dynamic response based on static response values. The developed pipeline initiation and laying technology for restricted sea areas provides a key theoretical basis and technical support for the precise design and safe construction of similar projects.