Prefabricated horizontal drains combined with vacuum preloading (PHDs‐VP) have addressed the shortcomings of prefabricated vertical drains combined with vacuum preloading (PVDs‐VP), beginning to emerge as a popular method for dredged slurry treatment. However, theoretical research on PHDs‐VP consolidation is relatively scarce. This study proposes a novel analytical model for predicting the consolidation behavior of the slurry treated by PHDs‐VP. This model treats the PHDs layer as a continuous drainage layer. Analytical solutions considering the clogging effect and the vacuum preloading process have been derived. The correctness and applicability of the proposed model have been verified through degeneration analysis and comparison with laboratory experimental data. Subsequently, an in‐depth sensitivity analysis of parameters has been conducted to assess the influence on consolidation. The research findings indicate that the clogging effect significantly reduces the consolidation rate, while the influence of the increasing rate in vacuum pressure is relatively minor. Additionally, increasing the slurry filling rate and the PHDs layout density can both accelerate soil consolidation. These findings offer significant guidance for the implementation of PHDs‐VP method in engineering.

中文翻译：

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考虑堵塞效应和真空预压工艺的 PHDs-VP 处理浆料固结的理论研究


预制水平排水管结合真空预紧 （PHDs-VP） 解决了预制垂直排水管结合真空预紧 （PVDs-VP） 的缺点，开始成为疏浚泥浆处理的流行方法。然而，关于 PHDs-VP 巩固的理论研究相对较少。本研究提出了一种新的分析模型，用于预测 PHDs-VP 处理的浆料的固结行为。该模型将 PHDs 层视为连续的排水层。已经推导出了考虑堵塞效应和真空预紧过程的解析解决方案。通过退化分析并与室内实验数据进行比较，验证了所提模型的正确性和适用性。随后，对参数进行了深入的敏感性分析，以评估对固结的影响。研究结果表明，堵塞效应显著降低了固结速率，而真空压力下速率增加的影响相对较小。此外，提高泥浆填充速率和 PHDs 布局密度都可以加速土壤固结。这些发现为 PHDs-VP 方法在工程中的实施提供了重要的指导。