To investigate the behavior of piles in offshore complex and harsh environments（super typhoon wind

vehicle impact or earthquakes）under H-M-Tcombined loading

the traditional finite pole element method was introduced and improved to set up the basic element stiffness matrix.Then

based on the m method and considering the coupling effects of horizontal force

bending moment and torque

the condensation method was used to obtain a simple and unified pile pole element stiffness matrix.Then

the finite pole element method calculation model was set up to analyze the inner forces and deformations of a single pile under the combined action of horizontal loads

bending moments and torque

with the calculation program worked out by MATLAB as well.Finally

engineering cases was chosen to carry out a parameter comparative analysis

results of which show that the improved finite pole element method in this paper can simulate the stratified characteristics of subsoil

various boundary conditions

and coupling effect of H-M-T loads.Furthermore

compared to the single laterally loaded pile

the displacements and internal forces of piles were increasing.Lastly

there was an effective transmission depth under H-M-T loads（when the relative depth z/L exceeds 0.5

the bending moment and the shear force approach zero

and the torque is significantly reduced.）.