| 1. | With the rapid development of road and communication of city , the harm effect that the blast vibration induced by building mass undergrounds or tunnels and digging blast underground structures act on the ground environment , are increasingly remarkable
随着道路、城市交通事业的迅速发展,大量地铁、隧道的修筑,浅埋地下结构的开挖爆破,由此而导致的爆破振动对地面设施,特别是对城市地面建筑的危害效应越来越显著。 |
