At the request of the Archdiocese of Zaragoza, a study of the situation of the Parish Church dedicated to the Assumption of Our Lady (18th century) in Juslibol (Zaragoza, Spain) has been carried out since 2011. This church has been suffering for many years from deformation and settlement issues caused by a combination of particularly unfavorable factors, such as poor soil quality, its location on a sloped hillside, and leakage from a sewer system that has accelerated soil dissolution and subsidence beneath the foundations. To address the differential movements of the hillside affecting the building, a containment and underpinning solution has been implemented through a micropile wall, reaching depths of up to 24 meters, applied to the foundation of the church's south wall. This wall includes anchors embedded in firm ground and the rocky substrate, which were to be executed in a second phase. The primary goal of these works was to stop and contain the differential movements the building has experienced. The works were completed in February and March 2020. To monitor the effectiveness of the containment and underpinning measures, a study using terrestrial laser scanning technology is being carried out. This method provides a large amount of data, highly valuable for the rehabilitation and protection of urban environments with significant historical and architectural value. The main objective of this type of analysis has been to obtain a detailed topography of the studied area and to conduct a comparison between different surveys, thus identifying differential movements over a specified period. More than four years later, the results show a reduction in the differential movements and deformations (cracks in the walls) affecting the church.
Echarri et al. (Wed,) studied this question.