Research on interaction between resistance at pile and lateral resistance of pile

The interaction between the resistance at pile end and the resistance of pile is researched through the indoor model test on the rock-socketed pile. The result shows that the rock stratum at the pile end influences the lateral resistance of pile; as the increase of strength of rock at the end, the lateral resistance of pile will increase; but the enhancement effect doesn't occur at the whole side of pile, only near the end of pile. Inversely a good lateral rock stratum also increases the resistance at pile end. The load-bearing capability of pile will be improved by using the interaction relationship so as to optimize the design method of pile.