考虑桩侧土体的应力松弛和土抗力重叠效应，提出了桩侧土抗力群桩效率的计算式。该式考虑了土质的影响，适应性强。计算结果接近于试验实测值。 Considering the stress relaxation of the soil around the pile and the overlap effect of the soil resistance, the calculation formula of pile group lateral soil resistance pile group efficiency was put forward. This formula takes into account the effects of soil quality and has strong adaptability. The calculation result is close to the actual measured value of the test.