Preloading with a surcharge is today commonly used together with prefabricated vertical drains for embankment construction on clayey soil to accelerate primary consolidation and increase strength. Because of considerable uncertainty related mainly to the rate of consolidation, there is a need to account for this in the vertical drain and surcharge design to ensure quality in the embankment construction. Addressing this issue, the paper presents a novel probabilistic design methodology that is compatible with the observational method. The procedure evaluates the suitable surcharge load to be used in combination with a vertical drain design in order to ensure that the established design criteria are satisfied with acceptable probability.

中文翻译：

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垂直排水沟附加费设计的概率观测方法

如今，通常需要使用附加费的预载与预制的垂直排水装置一起用于在粘土质土壤上筑堤，以加快基本固结并提高强度。由于主要与固结速度有关的不确定性很大，因此在垂直排水和附加费设计中需要考虑到这一点，以确保路堤施工的质量。针对这一问题，本文提出了一种与观测方法兼容的新型概率设计方法。该程序评估要与垂直排水设计结合使用的合适附加载荷，以确保以可接受的概率满足已建立的设计标准。