The behavior of pile under lateral load is a very complex process of pile-soil interaction. The interaction behavior of large-diameter rock-socket bored piles on lateral load is analyzed by field test. The relationships of lateral load-time-lateral displacement （ H0 - t - X0 ） and lateral load-displacement gradient （ H0 - （X0/H0））, the critical bearing capacity and lateral modulus of subgrade reaction m can be obtained from the test results. These experiment results are useful for the practical analysis of the same piles. The method of displacemen...
