陈建均. 深远海复杂海况下钢管桩清淤工艺的应用研究[J]. 南方能源建设,2025,12(1):109-115.. DOI: 10.16516/j.ceec.2024-049
引用本文: 陈建均. 深远海复杂海况下钢管桩清淤工艺的应用研究[J]. 南方能源建设,2025,12(1):109-115.. DOI: 10.16516/j.ceec.2024-049
CHEN Jianjun. Research on application of dredging technology for steel pipe pile under complex sea conditions in deep sea [J]. Southern energy construction, 2025, 12(1): 109-115. DOI: 10.16516/j.ceec.2024-049
Citation: CHEN Jianjun. Research on application of dredging technology for steel pipe pile under complex sea conditions in deep sea [J]. Southern energy construction, 2025, 12(1): 109-115. DOI: 10.16516/j.ceec.2024-049

深远海复杂海况下钢管桩清淤工艺的应用研究

Research on Application of Dredging Technology for Steel Pipe Pile Under Complex Sea Conditions in Deep Sea

  • 摘要:
    目的 随着碳达峰、碳中和战略的推进,海上风电迎来快速增长。2023年,全国各省、市超87个海上风电项目厂址已确定投资主体或正在开展项目竞配,装机容量超过58.9 GW。未来深远海基础型式将以四桩导管架基础为主,其中钢管桩沉桩阶段中会对周围土体产生扰动作用,从而产生淤泥。清淤效果不理想,一方面会影响基础结构强度,另一方面会影响风机吊装安全。
    方法 文章以粤东深远海示范项目为例,针对该风场水深大、能见度差、黏性高、清淤量多等特点,首先分析钢管桩淤泥的原因和危害,然后结合示范项目的成功应用验证了清淤工艺的可行性,最后提出可从清淤方式、清淤设备和设计优化3个方面进一步改进清淤工艺。
    结果 研究表明:采用超高压力水力清淤和空气扰动清淤对清淤方式进行优化,通过机器人技术优化清淤设备,调整桩顶泥面标高及预留淤泥上升空间进行设计优化,能够适应深远海复杂海况,改进后的清淤工艺可以进一步有效提升水下清淤效率。
    结论 改进后的清淤工艺可以被推广运用于后续的深远海风电项目。

     

    Abstract:
    Objective With the promotion of carbon peak and carbon neutrality strategy, offshore wind power has ushered in a period of rapid growth. In 2023, more than 87 offshore wind power project sites in various provinces and cities across the country have identified investment entities or are carrying out project competition, with an installed capacity of more than 58.9 GW. In the future, the deep-sea foundation type will be mainly based on the four-pile jacket foundation, In the process of steel pipe pile penetrating, the surrounding soil will be disturbed, resulting in silt deposit. If the dredging outcome is not ideal, it will affect the strength of the infrastructure, on the other hand, it will affect the safety of fan hoisting.
    Method The article took a demonstrative wind farm in the East Guangdong Sea as an example. Firstly, this paper analyzed the causes and hazards of silt deposit in view of the characteristics of the wind farm, such as high water depth, poor visibility, high viscosity and large amount of silt removal. Secondly, combined with the successful application of the demonstrative project, the feasibility of the dredging process was verified. Finally, the dredging process could be further improved from three aspects: process optimization, equipment optimization and design optimization.
    Result Research has shown that the dredging method is optimized by ultra-high pressure hydraulic dredging and air disturbance dredging, the dredging equipment is optimized by robot technology, the elevation of pile top mud surface is adjusted and the rising space of silt is reserved for design optimization. The improved dredging process adapts to the complex conditions in deep sea, and further effectively improves the efficiency of underwater dredging.
    Conclusion The improved dredging process can be popularized and applied to subsequent deep-sea wind power projects.

     

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