输电线路倾斜铁塔原位加固纠偏关键技术研究

Study on stabilization and rectification technology for inclined transmission tower

输电线路铁塔属高耸结构,不同于一般建筑物,输电线路电塔加固纠偏有其特殊性。结合厦门电业局所辖110 kV输电线路倾斜铁塔加固纠偏工程实例,深入探讨了输电线路倾斜铁塔加固纠偏关键技术。分析了铁塔倾斜原因,应用FEM技术研究基础倾斜对塔身的应力和变形的影响机制,分析了倾斜铁塔的健康状况,在此基础上提出经济有效的加固纠偏设计方案;对加固纠偏设计计算方法、加载控制指标分析及信息化施工控制等关键技术展开了讨论,并指出需要进一步研究的问题。

The transmission tower is located in Xiamen City, China, which is founded on weak, uneven highly compressible soils and its inclination has been increasing after construction. The technologies carried out to explore the applicability of the procedure for the stabilization of the leaning transmission tower are described. Firstly the causes of the inclination and the impact of the inclination on the tower are analyzed; the economic and effective stabilization scheme is brought forward base on it. Secondly the key technologies are discussed; and the future research direction about this issue is pointed out.