ABAQUS finite element analysis software is used to establish the rock-socketed model of three-pile jacket foundation
and the horizontal bearing capacity is determined by tangent intersection method
and the horizontal bearing capacity characteristics of the foundation are studied by analyzing the rock-socketed depth of steel pipe piles
grouting material properties and length-diameter ratio of steel pipe piles. The results show that the local regional stress and geotechnical resistance of steel pipe pile in strongly weathered layer reach the maximum; At the initial stage of loading
the grouting material is damaged in tension
and the top of the grouting material is separated from the steel pipe pile. Before reaching the horizontal bearing capacity
the damage zone extends from the tension side to the compression side. Increasing the depth of rock-socketed can significantly improve the horizontal bearing capacity of foundation; The grouting material label has little effect on the horizontal bearing capacity of the foundation
and increasing the grouting thickness can slightly improve the horizontal bearing capacity
but the influence is small; When the pile diameter is changed to improve the ratio of length to diameter
the horizontal bearing capacity of foundation decreases continuously
and the effect is remarkable. Generally speaking
changing the rock-socketed depth and length-diameter ratio of steel pipe piles in rock-socketed environment has a significant influence on the horizontal bearing capacity of foundation.
TRAN N X, HUNG L C, KIM S R.Evaluation of horizontal and moment bearing capacities of tripod bucket foundations in sand[J]. Ocean engineering, 2017, 140: 209-221.