本文以深远海柔直换流站为研究对象，设计了4种不同构型的导管架基础，系统分析了每种构型的极限承载力、位移响应及动力模态特性，在满足结构强度前提下探讨最优设计方案。同时，针对不同水深条件，开展了极端风暴工况下的数值模拟分析，以评估不同构型导管架基础的环境适应性与安全裕度。结果表明，双排导管架基础力学性能表现优秀，但抗震性能弱；单排导管架基础整体柔度高，但结构强度差；X型斜撑可以保证结构刚度与竖向承载性能，V型斜撑可以改善荷载分配特性。通过对不同构型进行综合对比分析，配备V型斜撑的双排导管架基础是富有经济性的较优选择。
This study focuses on deep-sea VSC-HCDC offshore substations and proposes four different configurations of jacket foundations. A systematic analysis was conducted to evaluate the ultimate bearing capacity, displacement response, and dynamic modal characteristics of each configuration. On the premise of ensuring structural strength, the study aims to identify the optimal design scheme. In addition, numerical simulations under extreme storm conditions were performed across various water depths to assess the environmental adaptability and safety margins of the proposed jacket foundations. The results indicate that the double-row jacket foundation exhibits excellent mechanical performance but has limited seismic resistance. In contrast, the single-row jacket shows greater global flexibility but insufficient structural strength. Regarding bracing configurations, the X-brace enhances structural stiffness and vertical load-bearing capacity, whereas the V-brace improves load distribution and material utilization. Through a comprehensive comparative analysis of different configurations, the double-row jacket foundation equipped with V-braces proves to be a cost-effective and relatively optimal choice.
2026,48(5): 44-49 收稿日期：2025-7-21
DOI：10.3404/j.issn.1672-7649.2026.05.007
分类号：U66；TK89
基金项目：国资委“揭榜挂帅”配套项目（NBWL202200582）
作者简介：罗晗(1995-),女,博士,工程师,研究方向为海上风电项目建设管理、人工智能应用开发等
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