析输电线路铁塔地基变形计算方法

高压输电线路普遍采用超静定铁塔结构，这种结构对地基的不均匀沉降非常敏感。当地基发生不均匀沉降时，即便很小的沉降差，也会引起对超静定铁塔结构附加应力，从而导致塔材变形、塔身倾斜，危害线路运行安全，给电气工艺提出更高要求。因此，对处于软弱地基上的铁塔，应进行地基变形计算，并将地基变形值控制在规范容许的范围内。文章主要探讨地基变形计算方法。

The Brief Analysis on Computing Method of Foundation Deformation of Transmission Line Iron Tower

Generally, the high voltage transmission line takes on static indetermination structure, which is very. sensitive to the uneven of the foundation. When the ground starts to descent, even a smallest descent will result in the deformation or the tilt of the tower which hampers on the safety of the line and calls for better craftsmanship. In this case, we must make precise calculation to hold the foundation deformation within the rational range. The article discusses accounting on the fnundation deformation computing.