The monumental complex of Maredolce (Palermo) includes an Arab-Norman castle that stands on the banks of an artificial lake carved out of the calcarenitic rock that rests on impermeable clays. The lake was originally filled with water, thanks to the channelling of a spring. Over time, the lowering of the water table and the high hydraulic permeability of the calcarenites have caused the lake to dry up. A project to renovate the monumental complex has recently been launched. It also provides the study of a possible restoration of the original conditions of the lake. To this end, a multidisciplinary geophysical study was carried out to investigate the geotechnical conditions of permeability of the land outcropping and provides valid technical solutions for waterproofing the bottom of the lake. For this purpose, a joint interpretation was performed using data acquired with different geophysical techniques, such as seismic refraction tomography, electrical resistivity and induced polarization tomography, multichannel analysis of surface waves and horizontal-to-vertical spectral ratio of environmental vibration recording. Joint interpretation, supported by cluster analysis techniques, allowed the reconstruction of the geophysical and geotechnical model of the subsoil of the ancient lake, helpful to suggest appropriate techniques for waterproofing the bottom of the lake.

中文翻译：

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电气和地震数据的联合解释旨在模拟巴勒莫（意大利）Maredolce 纪念性建筑群的地基土壤

Maredolce（巴勒莫）的巨大建筑群包括一座阿拉伯-诺曼城堡，坐落在一个人工湖的岸边，该人工湖由位于不透水粘土上的钙质岩石雕刻而成。由于泉水的涌动，湖中原本充满了水。随着时间的推移，地下水位的下降和钙质岩的高透水性导致湖泊干涸。最近启动了翻新这座巨大建筑群的项目。它还提供了对湖泊原始条件可能恢复的研究。为此，开展了多学科地球物理研究，调查了露头地表渗透性岩土工程条件，为湖底防水提供了有效的技术方案。以此目的，使用不同地球物理技术获取的数据进行了联合解释，例如地震折射层析成像、电阻率和感应极化层析成像、面波多通道分析和环境振动记录的水平与垂直光谱比。在聚类分析技术的支持下，联合解释允许重建古湖底土的地球物理和岩土工程模型，有助于提出适当的湖底防水技术。