水下钻孔爆破震动对近距离构筑物破坏的预防

How to Prevent Damag of Short-Range Structures from Quakes of Underwater Driling and Blasting

实施水下钻孔爆破,炸礁时,通过采用水下预裂、气泡帷幕、多段起爆等手段,预防爆破震动对沉箱的破坏.经爆破振动监测达到了保护码头的目的。

The west of newlybuild shipment pier in the Maji mountaion of Sheng Si, influences ships to berth because it is not enough in the depth of water. So it is necessary to carry out underwater drillingandblasting to explode the reefs only 12 m far away from the sinking container pier. Measures of decreasing blast quake must be taken to ensure the safety of underwater sinking container. The aim of protecting pier is reached after testing quake by the methods of underwater presplitting, bubble curtain and detonating in multiple segments.