To ensure the blasting demolition collapse of the brick structured chimney in complex environment, based on the characteristics and environment of the chimney, the o- rientation windows on both sides of corner in blasting trapezoid gap and the guide window in the middle of the chimney on the collapse direction was opened up on chimney. The ap- propriate blasting size, notch size and blasting network was chosen, the safety check and safe protected measures were taken to achieve expected blasting effect, ensuring the safety of surroundi...
