铁路桥梁预应力管道自动压浆技术

Research of Automatic Grouting Technology for Prestressed Pipe in Railway Bridge

自动化程度低、过程控制过度依赖人工是预应力管道压浆施工技术的现状,导致了压浆质量不稳定等问题。本文介绍的新型自动压浆系统实现了压浆施工过程中上料、制浆、抽真空和压浆各工序间的自动协同工作,压浆全过程自动控制,强化了对浆料配比、压力、温度等关键参数的实时监控,并通过压浆量计量技术提供了一种可行的管道密实度的判别方法,确保了压浆质量。

The current situation of prestressed pipe grouting construction technology is the low degree of automation and process control over reliance on manual, which leads to the instability of grouting quality. A new automatic grouting system has realized the automatic cooperate work of feeding, pulping, vacuum pumping and grouting in the whole process. It has strengthened the real-rime monitoring of the key parameters, such as the slurry ratio, pressure and temperature. Meanwhile, a feasible method for judging the compactness of pipes is provided by grouting measurement technology, which ensures the grouting technology.