Abstract The Artificial ground freezing (AGF) method is a reliable and environmentally friendly technique used for ground improvement to address adverse geotechnical conditions, and it has been widely used in the civil engineering field. However, frost heave and thaw settlement during the freeze–thaw process is inevitable, and excessive deformation can potentially result in uneven uplift or subsidence on the ground, which poses a significant threat to the safety of existing buildings and structures. Therefore, the prediction and control of ground surface deformation induced by AGF construction has becoming a trending issue in both academic and engineering fields. In this report, a practical method was proposed by combining the advantages of laboratory testing and numerical simulation. This method can be used to simulate and predict the ground surface deformation during the entire AGF construction process. Moreover, the solution procedure is simplified and more practically applicable compared with existing methods, and the prediction accuracy remains at a high level. This method was further verified by comparing the calculation results with the field monitoring data. Furthermore, based on the verified method, the effects of several sensitive parameters were investigated. Last, from the perspective of deformation prevention and control, several beneficial conclusions were drawn.

中文翻译：

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一种预测人工地面冻结法引起的地表变形的实用方法

摘要 人工地面冻结（AGF）方法是一种可靠的环保技术，用于改善地面以应对不利的岩土条件，已广泛应用于土木工程领域。然而，冻融过程中的冻胀和融解沉降是不可避免的，过度变形可能导致地面不均匀隆升或下沉，对既有建筑和构筑物的安全构成重大威胁。因此，AGF施工引起的地表变形的预测与控制已成为学术界和工程界的热点问题。在这份报告中，结合实验室测试和数值模拟的优点，提出了一种实用的方法。该方法可用于模拟和预测整个AGF施工过程中的地表变形。此外，与现有方法相比，求解过程更加简化，实用性更强，预测精度保持在较高水平。通过将计算结果与现场监测数据进行对比，进一步验证了该方法。此外，基于经过验证的方法，研究了几个敏感参数的影响。最后，从变形防治的角度，得出了一些有益的结论。通过将计算结果与现场监测数据进行对比，进一步验证了该方法。此外，基于经过验证的方法，研究了几个敏感参数的影响。最后，从变形防治的角度，得出了一些有益的结论。通过将计算结果与现场监测数据进行对比，进一步验证了该方法。此外，基于经过验证的方法，研究了几个敏感参数的影响。最后，从变形防治的角度，得出了一些有益的结论。