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不久前,荷兰的建筑师发明了一种新建筑工艺,建造了一座高楼。高楼建筑过程是从灌注最上面的混凝土楼板开始,到完成接近地面的一层结束。楼房的墙壁和楼板都是整体的。当混凝土达到预定强度后,用液压千斤顶将建好的这一层顶起来,以便进行下一层的建造,就这样进行下去,直到建造最下一层为止(1～6)。在施工中特别重要的是,顶升作业要用专门的检测系统,严密监视每个千斤顶的行程,误差不得超过0.5毫米,最大行程为55厘米。在升到预定高度后,由中央
Not long ago, Dutch architects invented a new construction process and built a tall building. The high-rise building process begins with pouring the top concrete slab and ending with the layer close to the ground. The walls and floors of the building are all integral. After the concrete reaches the predetermined strength, the constructed layer is jacked up with hydraulic jacks for the construction of the next floor, and so on, until the lowest layer is constructed (1 to 6). It is particularly important during construction that a special inspection system should be used for the lifting operation and the stroke of each jack should be closely monitored. The error should not exceed 0.5 mm and the maximum stroke should be 55 cm. After rising to a predetermined height, from the center