トンネル掘削における超低振動制御発破工法の開発

抄録

This construction, which execute the tunnel just under the pharmaceutical company about 23 meters in depth, was planed to use the controled blasting method together with mechanical excavation in order to protect the vibration pollution. However, this method might cause the blasting vibration which influence badly on the pharmaceutical company, and the other methods such as mechanical excavation without blasting can not be used by the period and the cost problems of construction. This report introduces an example of the controled blasting method which extend low vibration area than usual by the prediction and the suitable control of blasting vibration.