高压输电线路圆柱钢筋混凝土电杆已使用多年,但由于长度、重量和制造限制,电杆通常是分段制造。目前杆段连接方式以采用气焊为主。分段处是由8毫米钢板卷成钢圈进行焊接。其缺点是耗用劳动力多,劳动强度大,施工进度慢。在干旱缺水的西北山区或低温地区给施工带来很多困难。特别是 Cylindrical reinforced concrete poles for high voltage transmission lines have been used for many years, but due to length, weight and manufacturing limitations, poles are usually manufactured in sections. At present, the connection of the pole section is mainly based on gas welding. The section was welded by rolling 8 mm steel plates into steel rings. The disadvantages are that it consumes more labor, the labor intensity is large, and the construction progress is slow. In the arid and dry northwestern mountains or low temperature areas, it brings many difficulties to the construction. especially