Abstract The trench cutting re-mixing deep wall (TRD) is a new type of underground waterproof curtain. Mixing uniformity is the key index affecting the efficiency and quality of this method. However, because of many influencing factors, existing theories cannot be used to express the relationship between various factors and mixing uniformity. By analyzing the cutting and mixing process of the TRD method, the main factors affecting the uniformity of the mixing were obtained. A model test device was designed and manufactured, based on Buckingham’s pi theorem. The validity of the model test device was verified through a comparative analysis of model and field test results. The model test device was demonstrated to be able to simulate the mixing process of the TRD method. The results provide guidance for promotion and better application of the TRD method.

中文翻译：

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挖沟再混合深壁法模型试验装置的研制

摘要 挖沟深墙（TRD）是一种新型的地下防水幕墙。混合均匀度是影响该方法效率和质量的关键指标。但是，由于影响因素较多，现有理论无法表达各种因素与混合均匀性之间的关系。通过对TRD法的切割和混合过程进行分析，得出影响混合均匀度的主要因素。根据白金汉圆周率定理设计并制造了模型试验装置。通过模型与现场试验结果的对比分析，验证了模型试验装置的有效性。模型试验装置被证明能够模拟TRD方法的混合过程。