Back-analysis is broadly used for approaching geotechnical problems when monitoring data are available and information about the soils properties is of poor quality. For landslide stability assessment back-analysis calibration is usually carried out by time consuming trial-and-error procedure. This paper presents a new automatic Decision Support System that supports the selection of the soil parameters for three-dimensional models of landslides based on monitoring data. The method considering a pool of possible solutions, generated through permutation of soil parameters, selects the best ten configurations that are more congruent with the measured displacements. This reduces the operator biases while on the other hand allows the operator to control each step of the computation. The final selection of the preferred solution among the ten best-fitting solutions is carried out by an operator. The operator control is necessary as he may include in the final decision process all the qualitative elements that cannot be included in a qualitative analysis but nevertheless characterize a landslide dynamic as a whole epistemological subject, for example on the base of geomorphological evidence. A landslide located in North East Italy has been selected as example for showing the system potentiality. The proposed method is straightforward, scalable and robust and could be useful for researchers and practitioners.

当可获得监测数据并且有关土壤性质的信息质量较差时，反向分析广泛用于解决岩土工程问题。对于滑坡稳定性评估，通常通过费时的反复试验来进行反分析校准。本文提出了一种新的自动决策支持系统，该系统支持根据监测数据为三维滑坡模型选择土壤参数。该方法考虑了一组可能的解决方案，这些解决方案是通过对土壤参数进行置换而生成的，它选择了与测量的位移更一致的最佳十种配置。这减少了操作员的偏见，而另一方面允许操作员控制计算的每个步骤。在十个最合适的解决方案中，首选解决方案的最终选择是由操作员进行的。操作员的控制是必要的，因为他可能将所有定性元素包括在最终决策过程中，这些定性元素不能包含在定性分析中，但是例如基于地貌证据，将滑坡动力学作为整个认识论主题来表征。已选择位于意大利东北部的滑坡作为显示该系统潜力的示例。所提出的方法简单，可扩展且健壮，并且可能对研究人员和从业人员有用。操作员的控制是必要的，因为他可能将所有定性元素包括在最终决策过程中，这些定性元素不能包含在定性分析中，但是例如基于地貌证据，将滑坡动力学作为整个认识论主题来表征。已选择位于意大利东北部的滑坡作为显示该系统潜力的示例。所提出的方法简单，可扩展且健壮，并且可能对研究人员和从业人员有用。操作员的控制是必要的，因为他可能将所有定性元素包括在最终决策过程中，这些定性元素不能包含在定性分析中，但是例如基于地貌证据，将滑坡动力学作为整个认识论主题来表征。已选择位于意大利东北部的滑坡作为显示该系统潜力的示例。所提出的方法简单，可扩展且健壮，并且可能对研究人员和从业人员有用。