many countries have highlighted the single-column offshore-wind structures; and Germany has formulated the plan to research huge single-column offshore-wind energy structures. Based on the plan
Germany sets up new type lab model and uses Fe program to simulate single-column offshore-wind energy structures. All of them are introduced in the paper. The pore water pressure in sandy soil is researched when the single-column is under cyclic load. And then the pore water pressure in different permeabileties of soil and under cyclic load with different frequencies are analyzed. It is concluded that the existence and size of the pore water pressure is influenced by itself and circumstance situation. The research results can be used to research huge single-column offshore-wind energy structures in Germany.