The renovation project of the historic Branciforte Palace (16th–17th century) in Palermo (Italy) was owned by the Banco di Sicilia Foundation, with the aim for it to become a multi-purpose centre for the promotion of exhibitions and cultural events. In the context of the restoration work, a multi-methodological and non-invasive geophysical study has been carried out. The seismic characterization of the foundation soils was obtained by means of joint interpretations of a vertical seismic profile (VSP), multichannel analysis of surface waves (MASW) and horizontal to vertical spectral ratio (HVSR) microtremor analysis. The mutually constrained inversion of seismic surveys carried out with different techniques made it possible to obtain a robust interpretation of the foundation soils. Moreover, indoor geophysical surveys have been carried out to identify critical issues in the state of conservation of the floors and wall structures. In particular ground penetrating radar (GPR) profiles and an electrical resistivity tomography (ERT) have been carried out on the floor of the stable of the Palace, to evaluate in detail the state of consolidation of the foundation soil, in correspondence of a double row of marble columns, some of which were affected by differential subsidence. The joint interpretation allowed to generate a three-dimensional (3D) model of the foundation's subsoil, highlighting the irregular surface of the foundation rock and to identify the main structural voids responsible for subsidence. Furthermore, some supporting columns have been investigated by means of ultrasonic tomography (UST) to verify their state of degradation. Finally, infrared thermography (IRT) images of the internal and external walls and of the vaults highlighted differences in the type of masonry and in the state of the plaster.

中文翻译：

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巴勒莫布兰西福尔特宫翻新工程的地震和非侵入式地球物理测量

巴勒莫（意大利）历史悠久的 Branciforte 宫殿（16 至 17 世纪）的翻新工程由Banco di Sicilia 基金会所有，旨在成为促进展览和文化活动的多功能中心。在修复工作的背景下，进行了多种方法和非侵入性地球物理研究。地基土壤的地震特征是通过垂直地震剖面 (VSP)、面波多通道分析 (MASW) 和水平与垂直频谱比 (HVSR) 微震分析的联合解释获得的。使用不同技术进行的地震勘测的相互约束反演使得获得对地基土壤的可靠解释成为可能。此外，还进行了室内地球物理调查，以确定地板和墙壁结构保护状态中的关键问题。特别是在宫殿马厩的地板上进行了探地雷达 (GPR) 剖面和电阻率断层扫描 (ERT)，以详细评估地基土壤的固结状态，对应于双排大理石柱，其中一些受到差异沉降的影响。联合解释允许生成地基底土的三维 (3D) 模型，突出显示基岩的不规则表面，并确定导致沉降的主要结构空隙。此外，一些支撑柱已经通过超声断层扫描 (UST) 进行了研究，以验证它们的退化状态。最后，