Evaluation of the Impact of Blasting Vibration in a Reservoir Project on High Voltage Transmission Line Towers
Through on-site blasting vibration monitoring experiments and three-dimensional finite element simulation cal-culations,the dynamic response characteristics of surrounding high voltage transmission line towers caused by blasting excavation of a reservoir and the attenuation pattern of blasting vibration are studied.The blasting construction scheme is then evaluated according to corresponding specifications.Fitting formulas for blasting vibration attenuation are provided,which can be used as references for actual blasting construction.Optimization suggestions are also proposed for the blas-ting construction scheme,such as controlling the maximum single shot charge,selecting the reasonable blasting meth-ods,and conducting vibration monitoring,to ensure the safe and stable operation of the towers.