Shaft grouting efficiency investigated by bidirectional loading test of barrette pile at Vinhomes Golden River project in Ho Chi Minh City, Viet Nam

Abstract

To evaluate the shaft grouting efficiency, a bidirectional static loading test programme was performed on a shaft-grouted barrette pile at Vinhomes Golden River project in Ho Chi Minh City, Vietnam in February, 2016. The soil profile consisted of fill sand to 6,1 m depth on loose to medium dense silty sand to 35,2 m depth deposited on stiff clay to 63,2 m depth and underlain by very dense sand. The cross-section area of the barrette pile was 2,800 mm bv 800 mm. The pile was excavated to 69 m depth using grab-bucket excavation techniques with bentonite slurry and guide wall advanced ahead of the hole.