经典土压力理论的局限与小变位土压力计算的建议

The limitations of Classical Earth Pressure Theory and Proposal for Small wall Displacement Earth Pressure Calaulation

针对高层建筑深基坑支护结构的工作特点和软土地层的具体条件对经典土压力理论的适用性和合理性提出多项质疑，并提出考虑变位、强度、开挖深度诸因素影响的土压力计算方法。这种计算方法已在部份工程中试用，且部份成果已通过原位监测初步证实。

Aiming at the adaptability and rationality of the classical earth pressure to the characteristics of bracing for deep foundation pits and the specific soft soil subgrade conditions, In this paper, suggestions are proposed. The effect of wall displacement, soil strength and depth of excavation etc. to the calculation are also discussed. The calculation method proposed was on probation in some engineering practices. part of results were verified by in-situ monitoring