在含水率大、抗剪强度低的淤泥中采用抛石挤淤的办法加固地基或建造围埝，处理效果好且经济效益显著，因此得到了广泛地应用。抛石在软弱地基中下沉，直至其重力与地基承载力平衡为止。挤淤所形成截面的形状及抛石下沉深度的计算是此项研究的重点，基于抛石截面为倒梯形和矩形两种形状的假定，考虑淤泥表面隆起对承载力的影响，利用土体极限平衡理论，推导出抛石挤淤深度与抛石高度的关系。通过抛石挤淤的模型试验和现场挤淤的数据，分析比较两种假定下挤淤公式的准确性和适用性，试验结果与公式吻合性很好，该研究结果可为相关工程的设计和施工提供参考。

The squeezing soft clay (with stone) method is widely used in soft soil treatment for structures or dike foundations, in which the water content is high and shear strength is low. The construction technology of the squeezing soft clay (with stone) method is easy to carry out and the economic benefit is obvious. The stones penetrate into the soil foundation by squeezing out soft soil until the weight can balance the bearing capacity of foundation soil. The study of section morphology and depth of the dike by the squeezing soft clay (with stone) method is very important in design stage. In this paper both the inverse trapezoid section and rectangle section morphologies are assumed and the effect of the soil upheavals is considered. Then the calculation formulas of penetration depths of the bulk consisting of crushed stones are deduced by the limit equilibrium concept, in which the weight of crushed stone bulk and the bearing capacity of the soil foundation are balanced. The accuracy and applicability of the formulas are verified by model test results and the observed data from practical construction projects. It turns out that the model test and observed data are consistent with the calculation results of formulas very well. The study results can provide reference for designing the squeezing silt.