Study on the Application of Rotary Drilling Pile Construction in Expansion Project of Railway Station

Wuchang railway station expansion project was of a urgent construction period, requiring the high level of environmental protection and good quality. And to so large number of foundation engineering, the application of rotary drilling pile construction method could save time, reduce environmental pollution, and was suitable for silt, clay, sand and gravel strata. Through the engineering examples, the construction produces including scheme and technologies are introduced, and production and installation of steel casing, slurry pools and production, borehole-creating, production and hoisting of cages, concrete grouting and inspection key points are discussed in detail. The practice shows that rotary drilling pile construction method has a good overall efficiency in the expansion project of railway station.