This technology addresses the challenges of large-diameter steel pipe pile construction in coral reef geology by optimizing processes such as steel casing pile driving, clear-water drilling (rotary/reverse rotary drilling), hole cleaning, and underwater concrete pouring. It effectively resolves technical bottlenecks like poor pile sinking accuracy, pile slipping, drilling deviation and hole collapse. Innovative techniques include guide frame precision installation, graded holeforming control, and dual hole-cleaning, significantly boosting construction quality and pile reliability in complex coral reef strata.

Technology provider:CCCC Second Harbor Engineering Co., Ltd.