| 摘要: |
| 平陆运河是西部陆海新通道的骨干工程，也是新中国首个江海连通运河工程。工程建成后，众多支流汇入影响船舶航行安全。为有效缓解支流汇入对运河主航道影响，亟需探索支流汇入口航道特性及综合治理策略。运河沿线共汇集26条支流，交汇区域水流动态错综复杂，通过数值模拟与物理模型试验，秉持“工程与生态和谐共生”核心理念，提出一系列创新性治理措施，包括疏浚拓宽航道、构建斜坡式与多级跌水消力池、增设导流堤等。同时，结合各支流水文特性，精心规划生态涵养区，以实现环境保护与通航效益双赢。垭湾河、沙埠江、原钦江、沙坪河以及高湖河五处典型支流汇入口水沙动力学分析结果表明，治理后支流口水流流态稳定，横流小于0.3 m/s，满足通航要求且兼顾泥沙处理与生态改善。本文提出的治理措施为支流汇入口通航安全提供了新的解决方案，助力平陆运河打造优质、绿色工程。 |
| 关键词: 平陆运河 支流汇入口 航道特征 通航安全 |
| DOI： |
| 分类号:TV91? ?? |
| 基金项目:广西科技重大专项“平陆运河智能监管关键技术研究”(桂科AA23062035) |
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| Characteristics of Channel at Tributary Confluences of the Pinglu Canal and Control Management |
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LIU Ke1, WANG Jieyun2
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1.Department of Transport of Guangxi Zhuang Autonomous Region;2.Pinglu Canal Group Co,Ltd
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| Abstract: |
| The Pinglu Canal, serving as the backbone project of the Western Land-Sea New Corridor and the first sea-river connecting canal project in New China, faces navigation safety challenges from multiple tributary confluences post-construction. To mitigate hydrodynamic interference from 26 tributaries along the canal where complex flow patterns dominate confluence zones, this study employs numerical simulations and physical model experiments to develop innovative management strategies under the core philosophy of "engineering-ecological harmony".Key engineering interventions include: 1) Channel dredging and widening; 2) Implementation of slope-type and multi-stage drop stilling basins; 3) Construction of diversion dikes. Hydrological characteristics of individual tributaries inform tailored ecological conservation zone planning, achieving dual objectives of environmental protection and navigation optimization. Hydro-sediment dynamics analysis at five representative tributaries (Yawan River, Shabu River, Yuanqin River, Shaping River, and Gaohu River) demonstrates post-treatment improvements: stabilized flow regimes with cross-current velocities below 0.3 m/s, meeting navigation requirements while addressing sediment management and ecological enhancement. The proposed integrated solutions provide novel technical approaches for confluence zone management, supporting the Pinglu Canal's transformation into a world-class, eco-friendly waterway engineering project. This research establishes a paradigm for tributary confluence management in large-scale canal systems, balancing hydraulic efficiency with ecological sustainability through coordinated structural and non-structural measures. |
| Key words: Pinglu Canal Tributary Confluence Channel Characteristics Navigation Safety |
