Tower foundation plays an important role in transmission line engineering, but the traditional tower foundation has low bearing capacity against uplift and is damaging to the environment. In this regard, this paper proposes a new type of foundation structure, vertical-inclined combined high-pressure rotary piles, and its bearing performance and force mechanism are studied through modeling experiments. (1) The inclined pile inclination angles of 10 degrees and 20 degrees for vertical-inclined combined high-pressure rotary piles increased the ultimate bearing capacity of uplift resistance by 16.29% and 60.31% than that of corresponding vertical piles. (2) After changing the vertical piles into inclined piles, the vertical-inclined combined high-pressure rotary pile foundation can mobilize more soil to resist the vertical load, thus increasing the uplift capacity. (3) Having proposed a formula for calculating the uplift bearing capacity of a vertical-inclined combined high-pressure rotary piles foundation, model test results are also used to verify the formula's accuracy.

来源平台：MECHANICS OF ADVANCED MATERIALS AND STRUCTURES