Impact of proposed wind turbines on seismic monitoring stations at the Xiaolangdi Reservoir

This article simulates the operation vibration of a proposed wind turbine project, analyzes its impact on existing earthquake monitoring stations in the Xiaolangdi Reservoir. It selects 2 existing wind turbines with the same power and similar surroundings as the proposed one, and uses short period seismometers, strong motion meters, and wideband seismometers to monitor vibration at different positions from the wind turbines. Based on continuous waveform recording data from each measuring point, it calculates the root mean square of vibration acceleration at short period seismometer points, ground noise acceleration at strong motion meter points, and ground noise velocity at wideband points under the start - up and shutdown states of the wind turbine. Then it compares with seismic station construction standards and evaluates if the environmental ground noise level after wind turbine operation meets regulatory requirements. The test results show that a 5.6 MW wind turbine significantly impacts within 225 m of a station with a short period digital seismometer, and impacts beyond 315 m meet relevant seismic station standards. This study provides reference for site selection, detection and analysis of new wind power generation and other vibration equipment around existing earthquake monitoring stations of the same type.