Abstract
Abstract. The work presents a survey campaign specifically designed to formulate an effective restoration project in a Cultural Heritage context, the Military Shrine in Cima Grappa (Italy). Several outputs have been generated by exploring the most advanced laser scanning survey technique and some specific point cloud analysis algorithms. A detailed geometrical 3D reconstruction of human-made and natural tunnels coating materials, a geo-mechanical survey of the rock mass, a map of rock collapses and cinematic analysis of instability processes.Integrating Laser Scanning technique with the Scan-line survey allowed to perform advanced analysis and rock-mass characterisation in a predominant subterranean developed area. Most of the tunnels and underground spaces displayed rock collapses and diffuse active instability processes that certainly could have drastically slowed down surveys and analysis. The adopted techniques allowed both to proceed in acquiring data end in delivering sound outputs rapidly.
Highlights
Promoted and financed by the Italian Presidency of the Council of the Ministers and the Italian Ministry of Defence, the restoration project insists on a mountain area on the top of Monte Grappa, called "Cima del Grappa", Italy
The Global Kinematic Index is composed by the standard indexes such as PF-WF-TF and the Free Fall (FF) mechanisms, which mainly represents the blocks or bigger portions of rock mass that fall down detaching from the vault and ceiling
Good results can be achieved by using Laser Scanning survey to remotely perform rock mass characterization even in conservative restoration project
Summary
Promoted and financed by the Italian Presidency of the Council of the Ministers and the Italian Ministry of Defence, the restoration project insists on a mountain area on the top of Monte Grappa, called "Cima del Grappa", Italy. The area of interest, represented by the coloured point cloud, is accessible from the main gate in correspondence of Caserma Milano (Milano Barrack), end it is mainly composed by narrow underground tunnels (Figure 2). The underground area is mainly composed by intensively jointed limestone rock-mass (Figure 3-4). Several rock collapses have occurred in the underground infirmary environment and the access tunnels during the last few years.
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