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随着近年来建筑塔机的大量使用,由于塔机违规超限作业等引起的各类安全事故频繁发生,造成了巨大的生命财产损失。经验教训表明,必须对塔机使用过程和行为及时进行有效的监管才
With the massive use of construction tower crane in recent years, various types of safety accidents caused by illegal operation of tower crane frequently occur, resulting in huge loss of life and property. Experience shows that the tower crane must use the process and conduct timely and effective regulation before