Construction Control Technology of Gas Lift Reverse Circulation Bored Pile in Complex Geological Environment with High Tide Difference

With the rapid development of bridge construction, long-span bridges continue to emerge, so higher requirements are put forward for the quality of pile foundation. Combined with engineering examples, this paper introduces a construction method of using air lift reverse circulation drilling machine to control the quality of pile.Engineering practice shows that this method can be used in pile foundation construction in complex geological environment.