3D GPR assessment of the conservation state of a frescoed wall in the Monastery of St. John (Müstair, Switzerland)

IF 3.7 2区综合性期刊 0 ARCHAEOLOGY

Journal of Cultural Heritage Pub Date : 2026-09-01 Epub Date: 2026-08-31 DOI:10.1016/j.culher.2026.08.011

Michele Punzo, Ivan Ferrari, Daniela Tarallo, Giovanni Leucci, Patrick Cassitti, Lara De Giorgi, Francesco Giuri, Vincenzo Di Fiore

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Abstract

The Monastery of St. John in Müstair (Switzerland), a UNESCO World Heritage Site, preserves an exceptional cycle of Carolingian and Romanesque frescoes. This study presents the results of a Ground Penetrating Radar (GPR) investigation designed to assess the conservation state of a frescoed wall and to characterize the interaction between the mural surfaces and the underlying irregular masonry. Conducted within the MOLAB transnational access program, the survey employed complementary medium-frequency (900 MHz) and high-frequency (2 GHz) antennas to detect plaster stratigraphy, voids, detachments, and fractures. The results reveal a complex structural condition, including a dual-layer plaster system, localized voids and fractures, and areas of historic infill associated with past repair interventions. These findings are essential for planning targeted conservation measures and confirm the effectiveness of GPR as a non-invasive diagnostic tool in complex historical architectural contexts.

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瑞士圣约翰修道院壁画墙保存状况的三维探地雷达评估

瑞士米斯泰尔的圣约翰修道院被联合国教科文组织列为世界遗产，保存了一系列独特的加洛林式和罗马式壁画。本研究展示了探地雷达（GPR）调查的结果，该调查旨在评估壁画墙的保护状态，并描述壁画表面与底层不规则砌体之间的相互作用。该调查在MOLAB跨国访问项目中进行，采用互补的中频（900 MHz）和高频（2 GHz）天线来检测石膏地层、空隙、脱落和裂缝。结果揭示了复杂的结构条件，包括双层石膏系统，局部空洞和裂缝，以及与过去修复干预相关的历史填充区域。这些发现对于规划有针对性的保护措施至关重要，并证实了探地雷达作为复杂历史建筑背景下非侵入性诊断工具的有效性。

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来源期刊

Journal of Cultural Heritage 综合性期刊-材料科学：综合

CiteScore

6.80

自引率

9.70%

发文量

166

审稿时长

52 days

期刊介绍： The Journal of Cultural Heritage publishes original papers which comprise previously unpublished data and present innovative methods concerning all aspects of science and technology of cultural heritage as well as interpretation and theoretical issues related to preservation.