A multidisciplinary approach for the investigation of a rock spreading on an urban slope

Abstract

Landslides are very complex processes controlled by multiple factors. The knowledge and characterization of these factors is essential for a comprehensive understanding of the mechanisms and kinematics of the instabilities and for an efficient design of corrective measures. The aim of this work is to combine traditional geological and geotechnical techniques with geophysical, remote sensing and forensic techniques for obtaining a whole picture of an active lateral spreading affecting the Finestrat municipality in Alicante, SE Spain. Geomorphological, geotechnical and geophysical techniques (i.e. ground penetrating radar and refraction seismic) have provided essential information about the geometry, structure and petro-physical properties of the slope. A Terrestrial Laser Scanner was used for recognizing the most important sets of discontinuities affecting the rock mass and to evaluate the activity of the landslide slope. Complementarily, a forensic analysis of the building damage completed the available datasets, yielding very useful kinematic information of the landslide. Finally, a sensitivity analysis of the stability of the rock slope has been performed considering both block toppling and block sliding models. Therefore, the multisource analysis performed in this work has allowed the identification and characterization of a complex lateral spreading, highlighting its effectiveness for a comprehensive understanding of this type of landslide.

Mapping Landslides on EO Data: Performance of Deep Learning Models vs. Traditional Machine Learning Models

“…Just the non-seismic landslides between 2005 to 2016 are responsible for an underestimated total of 55,997 deaths across the globe [4]. Moreover, the slow-moving unstable slopes hold enough potential to damage or weaken engineering infrastructures like roads, buildings, and dams [5,6]. Occasionally, these instabilities can develop into a rapid-moving catastrophic landslide affecting portions or even entire slopes, often triggered by external factors such as heavy rainfall, earthquakes, volcanic eruptions, and human activities [7].…”

Analysis of Geotechnical-Assisted 2-D Electrical Resistivity Tomography Monitoring of Slope Instability in Residual Soil of Weathered Granitic Basement

“…There are great concerns around the world over the years on the occurrences of damaging landslides (De Vita et al, 2018;Froude and Petley, 2018;Hojat et al, 2019;Whiteley et al, 2019). Slope movement events that resulted in landslide have wrecked severe havoc and damage to lives and infrastructures with an estimated loss of several billions of dollars across the world (Chandarana, 2016;Sidle and Bogaard, 2016;Winter et al, 2016;Soto et al, 2017;Wang et al, 2017;Bordoni et al, 2018;Di Traglia et al, 2018;Tomás et al, 2018;Moragues et al, 2019;Yang et al, 2019;Kirschbaum et al, 2020). The impact of damages caused to lives and infrastructure as well as mitigation and management of this natural hazard has been the subject of research for decades (Abidin et al, 2017;Bordoni et al, 2018;Pasierb et al, 2019).…”

“…Changes in water conditions and slope geometry are the main factors that induce slope instability (Tang et al, 2018) in the presence of discontinuities such as faults, fractures, and beddings which are precursors to landslide (Chalupa et al, 2018). Since, the world is experiencing heavy and extreme rainfall events because of global climate change (Kirschbaum et al, 2020), the continuous precipitation during typhoon increases slope instability around mountains which has led to severe mudflows and landslide events (Baum et al, 2010;Pradhan and Lee, 2010;Epada et al, 2012;Jeong et al, 2014;Chien et al, 2015;Hakro and Harahap, 2015;Baharuddin et al, 2016;Sidle and Bogaard, 2016;Jeong et al, 2017;Kumar and Rathee, 2017;Soto et al, 2017;Tomás et al, 2018;Kirschbaum et al, 2020). A majority of these landslides have caused a considerable loss of lives and properties (Choi and Cheung, 2013;Askarinejad et al, 2018).…”

Multi-Source Data Integration to Investigate a Deep-Seated Landslide Affecting a Bridge

“…Refice et al [6] integrated persistent scatterer interferometry and ground data for landslide monitoring in southern Italy. Additionally, the multidisciplinary approach that was performed by Tomás et al [7] for the study of a complex lateral spreading allowed for its identification and characterization.…”