APPLICATION OF UNDERWATER PUNCHED CAST-IN SITU PILES IN ENGINEERING

This paper analyzed quality control and foundation piles scheme applied in construction under complex geological conditions as existence of plentiful groundwater,drift sand layer,and round gravels-mixed-with-pebbles layer,and put forward effective treatment proposals against common quality failing as easy displacement of axial line of punched cast-in situ pile and the troublesome issue of slurry discharge in city.The chosen pile type and construction quality control method are proved correct and bring good results.