Due to the special cross section of H-shaped piles, the characteristics of soil compaction effect caused by pile driving cannot be simply replaced by the soil compaction law of pipe piles. Therefore, based on the field test data of Hujiashen Phase II project, this paper studies the laws of excess pore water pressure and soil displacement caused by pile sinking. Based on the modified circular hole expansion model, a calculation formula for rectangular hole expansion suitable for H-shaped piles is derived considering the particularity of H-shaped piles during hole expansion. The formula is used to calculate the excess pore pressure and soil displacement caused by pile driving, and compared with other methods. The results show that the modified expanded hole model fully considers the linear variation of pore water pressure along depth in calculating the excess pore pressure and soil displacement of H-shaped piles, and the results are closer to the measured data.