Anti-Frost Design and Construction Adaptability Analysis of Wind Turbine Foundations in Alpine Regions
高寒地区风电基础抗冻设计与施工适应性分析

摘要

随着可再生能源快速发展，风电建设逐步向高寒地区推进，恶劣低温环境给风电基础建设带来严峻挑战。本文围绕高寒地区风电基础抗冻设计与施工适应性问题，采用理论分析、数值模拟与工程经验相结合的方法，研究冻融循环下基础力学特性。建立温度场、应力场与渗流场耦合的冻融数学模型，分析不同冻深对结构应力与变形的影响规律。结合现场试验，揭示混凝土抗冻性能衰减机理，提出适用于高寒地区的抗冻设计方法与关键参数。研究表明，采用复合保温、合理配筋及优化混凝土配合比可显著提升基础抗冻耐久性；施工中采取分层浇筑、温控养护等措施能有效提高工程质量。经技术经济对比，形成一套高寒地区风电基础设计与施工优化方案。成果可为寒冷地区风电场工程提供技术指导，对推动高寒区域清洁能源开发及同类工程具有重要参考价值。

Abstract

With the rapid development of renewable energy, wind power projects are increasingly expanding into alpine regions. However, severe low-temperature environments pose significant challenges to the construction of wind turbine foundations. This study focuses on the anti-frost design and construction adaptability of wind turbine foundations in alpine areas. By integrating theoretical analysis, numerical simulation, and engineering experience, the mechanical behavior of foundations under freeze–thaw cycles is investigated. A coupled mathematical model incorporating temperature field, stress field, and seepage field during freeze–thaw processes is established to analyze the influence of different freezing depths on structural stress and deformation. Combined with field experiments, the study reveals the degradation mechanism of concrete frost resistance and proposes suitable anti-frost design methods and key parameters for alpine regions. The results show that the use of composite insulation measures, rational reinforcement design, and optimized concrete mix proportions can significantly enhance the frost resistance and durability of foundations. In addition, construction measures such as layered pouring and temperature-controlled curing can effectively improve project quality. Based on a technical and economic comparison, an optimized design and construction scheme for wind turbine foundations in alpine regions is proposed. The findings provide technical guidance for wind farm construction in cold regions and offer valuable references for the development of clean energy projects in alpine environments and similar engineering applications.