Real-Time Wind Speed Analysis at Wind-Damaged Tower of a Transmission Line

Affected by the Super Typhoon “Mangkhut,” a total of five base towers of a transmission line in the mountainous area of China collapsed. In this paper, a mathematical model is established based on the Shuttle Radar Topography Mission (SRTM) data near the accident tower. The measured wind speed in the plain area under the mountain is used as the calculation boundary condition. The wind speed at the top of the mountain is calculated by using a numerical simulation method. The design wind speed and calculated wind speed at the tower site are compared, and the influence of wind speed on tower position in this wind disaster accident is analyzed.