Drilling Construction Technology of φ3.8 m Bored Grouting Pile in Jiaxing-Shaoxing River-spanning Bridge

Abstract:

The drilling construction technology of borehole with super-large diameter of 3.8m in Jiaxing-shaoxing river-spanning bridge is introduced: steel casing sinking, mud circulation system arrangement, drill and bit selection, performance of wall protection mud and technical parameters determination and main technical measures in drilling construction process.