大坡度复杂山地光伏支架微孔灌注桩基础设计应用

NPS

Carbon Neutralization and New Power Systems

2995-44362995-4479

Art and Design

10.61369/NPS.2025010004

Article

大坡度复杂山地光伏支架微孔灌注桩基础设计应用https://artdesignp.com/journal/NPS/3/1/10.61369/NPS.2025010004张甲元

2025

2025-01-20

【目的】针对中国光伏发电发展因土地资源紧张，特别是受“三区三线”等严格用地政策限制以及大坡度限制区域难以利用的问题。【方法】基于云南某光伏项目的实际情况，在机械难以进入的大坡度复杂山地，施工采用人工操作俗称“小蜜蜂”的小型凿岩潜孔钻，成孔设置了桩径185 mm、桩长1.45 m 的微孔灌注桩作为基础。同时，支架结构创新采用“2×5”双立柱布置形式，显著提升了其对复杂地形的适应能力和整体稳定性。在施工过程中，严格参照国家相关规范标准，并通过专业软件3D3S对支架基础承载力进行了精确计算和分析。【结果】计算表明基础承载力完全满足要求（最大上拔力7 kN < 设计抗拔承载力25.19 kN；最大水平力8 kN < 设计水平承载力12.41 kN；最大竖向力23 kN < 设计竖向承载力95.90kN），施工质量可控（孔心位移偏差<10 mm，垂直度偏差<0.5%）。【结论】研究表明，针对大坡度复杂山地采用双立柱光伏支架结合人工成孔的微孔灌注桩基础，是一种有效可行的解决方案，为具有相似地形地质条件的复杂山地光伏项目开发提供了技术参考和实践经验。光伏发电,支架基础,大坡度复杂山地,微孔灌注桩,大坡度复杂山地

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