Abstract：
The foundation pit project of the passenger terminal building and general transfer center of Beijing Daxing International Airport covers a super-large area and has complex geological conditions, so bentonite slurry wall and polymer slurry wall were used for pile test. The test result showed that the test pile using polymer slurry wall has shorter construction period and fast construction speed than the test pile using bentonite slurry wall. Successful application of polymer slurry wall test pile in sandy soil could solve the problem in sediment thickness control of filling pile and effectively guarantee the pile foundation construction quality.
