VULNERABILITY STUDY OF EARTH WALLS IN URBAN FORTIFICATIONS USING CAUSE-EFFECT MATRIXES AND GIS: THE CASE OF SEVILLE, CARMONA AND ESTEPA DEFENSIVE FENCES

M. Moreno, P. Ortiz, R. Ortiz
2019 Zenodo  
The objective of this paper is to develop a new methodological model to assess the vulnerability of defensive remains in rammed earth walls in historical centers. To do this, the vulnerability index based on cause-effect matrix has been adapted for constructions which main component is rammed earth walls and combined with a Georeferenced Information System (GIS). Medieval defensive fences have been studied in three historical centers in the province of Seville (Carmona, Estepa and Seville). 20
more » ... a and Seville). 20 sections belonging to medieval rammed earth walls fortifications (10th -15th century) have been analysed. In the case of Carmona, the bases of the walls are from the Carthaginians period (3rd century BC). The sections were divided into 199 minimum units of analysis (MUA), with walls, towers, gates, shutters and fortresses. 2450 m of earth walls were studied in the three cities. The tools used to assess the vulnerability index were Leopold matrixes and cataloguing cards filled out after onsite inspection. As a result, a descriptive study of weathering forms that affect the structures and a vulnerability index that identifies the most vulnerable structures is presented. The information gathered is very useful in decisionmaking and prioritization of strategies in the preservation of urban heritage environments.
doi:10.5281/zenodo.3583062 fatcat:yz7xbijty5hy7mfc7fxm5wfpye