高层建筑混凝土泵送管道的清洗方法有其特殊之处,因为泵管高度高,积聚在管内的混凝土不断增加,当自上而下清洗时，若气洗的气压和容量不足,就不能把管内混凝土全部推出,或根本不能推出,此时须迅速进行分段多次清洗,但这样做既费时,又造成了混凝土的浪费。针对上述问题,我们改进 High-rise building concrete pumping pipeline cleaning method has its special features, because the height of the pump pipe is high, the concrete accumulating in the pipe is increasing. When the top-down cleaning, if the gas pressure and capacity of the air-washing are insufficient, it cannot be put inside the pipe. All the concrete is pushed out, or cannot be pushed out at all. At this time, it is necessary to carry out the washing several times quickly. However, this is time-consuming and causes a waste of concrete. In response to the above problems, we improved