大跨径连续梁悬浇施工质量控制措施的分析与探讨

结合佛开高速公路扩建工程施工，从挂篮的设计和挂篮的操作、模板、混凝土施工、预应力张拉、施工监测等方面对如何控制大跨径连续梁挂篮施工质量进行了分析，并介绍了具体的质量控制措施。

Development of Small Crack Pouring Maintenance Machines

The maintenance of pavement cracking is one of the most important contents of working in the depart ments of highway maintenance; it is also an effective way to guarantee service life of highway and to improve pavement performance. However, construction skills and backwardness of crack pouring machines have affected the quality of maintenance of pavement cracking. In this article, the characteristic of pavement cracking has been analyzed, a kind of small grouting machine developed by Shenzhen Pingtong Highway Maintenance Co. , Ltd. has been introduced, which can bring programmed and specialized maintenance working for pavement cracking by its portable, easily operated properties and low investment.