针对水平掏土成孔形成的土条带侧向应力解除，条带边缘会产生剪胀滑移破坏的特征，基于对其破坏模式分析的基础上，运用经典土力学观点，假定土体弹性区与塑性区交界处服从摩尔–库伦准则，认为塑性区土体产生滑移剪切破坏，弹性区土体主要承担上部荷载，服从虎克定律，提出针对水平掏土成孔土压缩变形的计算方法，并应用于建筑物纠偏实例中，对计算结果和工程应用结果比较表明，该方法能够很好计算出掏土临界应力以及掏土孔孔径、土条宽度等相关重要参数，预测附加沉降量，并与实际结果吻合较好，证明了计算方法的正确性和合理性，填补了纠偏设计不能预测沉降量的理论空白，对于建筑物纠偏设计与施工具有较强的指导意义。%Because of the characteristics of the horizontal soil into hole forming soil lateral stress relief, edge banding producing dilatancy sliding failure, and based on the failure mode analysis, on the basis of using the classical soil mechanics point of view, it assumes that the elastic zone and the plastic zone of soil on the border obey Moore-coulomb criterion, shear damage responses of the plastic zone of soil slip, the elastic zone soil mainly undertakes the upper load, obey hooke’ s law, proposed in view of the level of soil pore forming and the calculation method of soil compression deformation and applied to the building rectifying example. The comparing result of the calculation results and engineering application showed that this method can calculate the soil stress and critical soil hole diameter, width related important parameters, such as soil, additional subsidence prediction, and are in good agreement with the actual results, proving the correctness and rationality of the calculation method and fill in the gap theory, in which design cannot predict settlement, and has strong guiding significance in rectifying for building design and construction.
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