土压力的计算是基坑设计中的难点问题。针对该问题,本文提出了考虑位移的土压力计算公式,并给出了极限位移的确定方法。结果表明,由该公式计算的土压力界于静止土压力与朗肯土压力之间,能较好地反应主动及被动土压力随位移变化的规律。文中计算结果与实测结果相符,证明了计算公式推导正确以及计算结果合理。 Calculation of earth pressure is a difficult problem in foundation pit design. In order to solve this problem, this paper presents a formula to calculate the earth pressure considering the displacement, and gives the method of determining the limit displacement. The results show that the earth pressure calculated by this formula is between the static earth pressure and Rankine earth pressure, which can well reflect the law of active earth pressure and passive earth pressure changing with displacement. The calculation results in the paper are in good agreement with the measured ones, which proves that the calculation formula is correct and the calculation result is reasonable.