Article
Geosciences, Multidisciplinary
Siyuan Zhao, Fuchu Dai, Jianhui Deng, Hong Wen, Hua Li, Fei Chen
Summary: This study investigated landslides in the Sichuan-Tibet Engineering Corridor using geomorphological and geological analyses. The results showed that landslides occurred preferentially in high-elevation river valley regions and were controlled by soft rock types and geological features such as faults and rivers. The susceptibility of landslides varied across different river catchments and was strongly influenced by lithology, elevation, relief, slope, and distance to faults.
Article
Environmental Sciences
Alissa Flatley, Ian Rutherfurd, Alexander Sims
Summary: Engineers and managers often need to estimate flow resistance in natural channels, and this study focuses on the roughness in arid and semi-arid ephemeral streams. High resolution structure-from-motion-derived point clouds are used to estimate channel boundary roughness and quantify the influence of vegetation. The study found that in-channel vegetation can significantly increase channel roughness, and integrating vegetation and geomorphic features is important for restoring these headwater channels in semi-arid regions.
Article
Environmental Sciences
Dongdong Yang, Haijun Qiu, Yaru Zhu, Zijing Liu, Yanqian Pei, Shuyue Ma, Chi Du, Hesheng Sun, Ya Liu, Mingming Cao
Summary: Adjacent landslides with different movement processes occurred in Hualong County, China. Displacement processes of these landslides were detected using InSAR techniques. Effective antecedent precipitation and existing landslide deformation can trigger new landslides.
Article
Environmental Sciences
Linfeng Fan, Peter Lehmann, Chunmiao Zheng, Dani Or
Summary: Research shows that rainfall-induced shallow landslides have a significant impact on soil depths and regeneration rates, affecting future landslide susceptibility and sediment dynamics. Consideration of landslide legacy can improve landslide prediction and quantify the rates of landslide erosion and fluvial sediment yield.
WATER RESOURCES RESEARCH
(2021)
Article
Engineering, Aerospace
K. C. Niraj, Sharad Kumar Gupta, Dericks Praise Shukla
Summary: This paper uses DInSAR and MTInSAR techniques to study surface displacement in the Kotrupi Region. DInSAR accurately measures displacements but is limited by various factors, while MTInSAR uses data from multiple periods to reduce atmospheric disturbances and unwrapping errors. The results show significant deformation in the Kotrupi area after a landslide, with MTInSAR providing more accurate results compared to DInSAR.
ADVANCES IN SPACE RESEARCH
(2022)
Article
Remote Sensing
Xin Yao, Yiping Chen, Donglie Liu, Zhenkai Zhou, Veraldo Liesenberg, Jose Marcato Junior, Jonathan Li
Summary: The study utilized the average-DInSAR method to detect displacements on tableland escarpments and confirmed that these movements were induced by underground coal mining. This method proved to be simple and effective for detecting pre-failure displacements in areas with similar geological conditions, aiding in the formulation of early warning strategies for landslides.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2021)
Article
Geography, Physical
Forrest Williams, Sam McColl, Ian Fuller, Chris Massey, Hugh Smith, Andrew Neverman
Summary: In rapidly uplifting regions, deep seated landslides are a significant natural hazard influencing landscape evolution and sediment production. Research shows that landslide-prone areas may have below-average slope angles, indicating the importance of structural controls on landslide occurrence.
Article
Environmental Sciences
Stefano Morelli, Roberta Boni, Mauro De Donatis, Lucia Marino, Giulio Fabrizio Pappafico, Mirko Francioni
Summary: This research presents an integrated and low-cost approach to studying potential landslide phenomena in two medieval towns in Italy. Field surveys and mapping, along with the use of innovative digital mapping tools and unmanned aerial vehicle-based photogrammetry, were conducted to gather and analyze data. Through GIS analysis and advanced differential synthetic aperture radar interferometry (A-DInSAR) interpretation, the researchers were able to understand the structural features driving slopes' instabilities and verify the stability of buildings in proximity to cliffs.
Article
Engineering, Geological
Cecilia Irene Villasenor-Reyes, Pablo Davila-Harris, Omar Delgado-Rodriguez
Summary: The study employs multidisciplinary approaches to characterize deep-seated landslides, examining various factors such as lithology, structural features, and geomorphological mapping, to understand the complex dynamics both inside and outside the landslide area.
Article
Geosciences, Multidisciplinary
Alessandro Cesare Mondini, Fausto Guzzetti, Kang-Tsung Chang, Oriol Monserrat, Tapas Ranjan Martha, Andrea Manconi
Summary: Landslides are geomorphological processes with serious threats to people, property, and the environment on all continents. Investigators have shown increasing interest in using Synthetic Aperture Radar (SAR) imagery for landslide detection and mapping, but challenges remain to be faced for effective utilization.
EARTH-SCIENCE REVIEWS
(2021)
Article
Engineering, Environmental
Zongji Yang, Gang Liu, Liyong Wang, Shihao Liu, Xiaolong Fu
Summary: This study investigated the evolution of the hydro-mechanical behaviour and parameters of a single landslide by integrating experimental and theoretical analyses. Results showed a linear increase in the angle of internal friction and a non-linear decrease in soil cohesion. Using this evolution of parameters, the spatiotemporal decay of the landslide over the next decade was predicted under extreme rainfall conditions.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Geography, Physical
Anya Leenman, Brett Eaton
Summary: The experiment shows that avulsions are rapid and aperiodic, with in-channel sediment accumulation affecting their occurrence.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Engineering, Geological
Davide Notti, Aleksandra Wrzesniak, Niccolo Dematteis, Piernicola Lollino, Nunzio Luciano Fazio, Francesco Zucca, Daniele Giordan
Summary: In November 2016, extreme rainfall in the Ligurian Alps of NW Italy triggered landslides and debris flows in the upper Tanarello stream basin, severely damaging the village of Monesi di Mendatica. Utilizing a multidisciplinary approach, researchers defined the landslide behavior, triggering conditions, and chronological evolution leading to the 2016 event, enhancing understanding of the landslide and potential future evolution.
Article
Chemistry, Analytical
Ivan Jakopec, Ante Marendic, Igor Grgac
Summary: A new data processing method for calculating landslide displacements based on UAS photogrammetric survey data is presented in this paper, which does not require the production of dense point clouds, digital terrain models, and digital orthomosaic maps, enabling faster and simpler displacement determination. The proposed method matches features between images from two different UAS surveys and calculates displacements based only on the comparison of two reconstructed sparse point clouds. The method shows the ability to determine displacements with centimeter-level accuracy in ideal conditions, and sub-decimeter level accuracy in the Kostanjek landslide.
Article
Geosciences, Multidisciplinary
Mohsen Pourkhosravani, Ali Mehrabi, Saied Pirasteh, Reza Derakhshani
Summary: This study evaluates and monitors the displacement caused by landslides in Maskun, Iran using DInSAR and PSI techniques. It identifies the relationships between climatic conditions and mass displacement.
GEOMATICS NATURAL HAZARDS & RISK
(2022)
Article
Geosciences, Multidisciplinary
Francesco Fusco, Massimiliano Bordoni, Rita Tufano, Valerio Vivaldi, Claudia Meisina, Roberto Valentino, Marco Bittelli, Pantaleone De Vita
Summary: This study presents a method for estimating rainfall thresholds for shallow landslides in different geomorphological environments using coupled soil hydrological monitoring and physics-based modeling. The results show that geotechnical and hydrological properties of soil coverings are crucial factors controlling the hydrological processes leading to landslide initiation. The characteristics of the soil coverings also influence the slope hydrological response at different time scales, making antecedent soil hydrological conditions an important factor for estimating landslide rainfall thresholds. The proposed approaches can be used to assess the hazard of shallow rainfall-induced landslides and implement early-warning systems at site-specific or larger scales.
Article
Engineering, Environmental
P. Petrone, V. Allocca, F. Fusco, P. Incontri, P. De Vita
Summary: In the design and construction of buildings and infrastructures, the reconstruction of a reliable 3D engineering geological model is essential. However, there is a lack of comprehensive guidelines for the 3D engineering geological modeling and geotechnical characterization of a construction site. This paper presents a case study of the Nola plain in southern Italy and discusses the methodology for engineering geological modeling and mapping using advanced modeling software.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Article
Engineering, Geological
Alvaro Rabat, Roberto Tomas, Miguel Cano
Summary: Understanding the tensile behavior of rocks and its water-induced variation is crucial for designing mining and civil engineering structures and assessing geotechnical hazards. This study expands knowledge by determining the tensile properties of porous limestone under dry and water-saturated conditions through direct and indirect methods. The results show that water saturation significantly reduces the tensile strength and modulus of the limestone, and the petrological characteristics and mineral composition are analyzed to explain the observed softening. Accurate correlations between direct and indirect tensile strength parameters are established, providing a novel and useful contribution to geomechanics.
ENGINEERING GEOLOGY
(2023)
Article
Geography, Physical
Ningling Wen, Keren Dai, Roberto Tomas, Mingtang Wu, Chen Chen, Jin Deng, Xianlin Shi, Wenkai Feng
Summary: The potential landslides in the river bank of Maoergai hydropower station were monitored using SBAS-InSAR, and the fluctuation of reservoir water level was found to be the main triggering factor for slope displacement. The displacement showed a seasonal trend and had a common power with reservoir water fluctuation at an interannual scale of one year. By using InSAR and wavelet tools, this study quantitatively revealed the time lag between slope stability and reservoir water fluctuation, providing strong support for the analysis of landslide mechanisms in the Maoergai reservoir area.
GISCIENCE & REMOTE SENSING
(2023)
Article
Engineering, Geological
Da Huang, Yi-xiang Song, Zhao Li, Shi-lin Luo, Jian-bing Peng, Roberto Tomas
Summary: In this study, the working performance and mechanism of a novel upper-hollow drainage anti-slide pile (UDAP) were evaluated through physical model tests and numerical simulations. The results showed that UDAPs have excellent drainage performance and can reduce both earth pressure and pore water pressure. Numerical simulations conducted on the Quchi landslide in China demonstrated that UDAPs have a significantly better retaining effect compared to conventional anti-slide piles (CAPs), reducing landslide thrust and deformation. These findings provide an important basis for future research, design, popularization, and application of UDAPs.
Article
Computer Science, Interdisciplinary Applications
Shi-lin Luo, Da Huang, Jian-bing Peng, Ailifeila Aierken, Zhao Li, Xi-bin Kuang, Roberto Tomas
Summary: This paper studies the development of landslides in the Three Gorges Reservoir area and the factors affecting them. The Outang landslide, a typical accumulation landslide, is taken as an example. The study finds that the displacements of the landslide show a step-like pattern over time, with rainfall and reservoir water being the main factors affecting the upper and lower parts of the landslide. The study also proposes a novel drainage anti-slide pile and verifies its drainage performance through physical model testing.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Engineering, Geological
R. Tomas, E. Diaz, W. T. Szeibert, X. Liu, J. M. Lopez-Sanchez, C. Zhao
Summary: This paper analyzes an active landslide in Alcoy, Spain, which affects a road and industrial buildings of historical significance. High-resolution SAR images from the PAZ satellite were used to determine the behavior of the landslide, and detailed geomorphological mapping and structural damage analysis were conducted. 3D modeling confirmed the overall instability of the area and the relationship between the landslide and rainfall and road construction. This information is crucial for local authorities to effectively manage the landslide.
Article
Engineering, Geological
Roberto Tomas, Marisa Pinheiro, Pedro Pinto, Eduardo Pereira, Tiago Miranda
Summary: A catastrophic rock planar slide occurred in Palmeira de Faro, Esposende, Portugal on November 23, 2022, resulting in the death of two people in a building close to the affected cut slope. The slide was caused by a granitic rock mass that was heavily weathered and had been excavated in some areas by mechanical means and blasting. The trajectory of the displaced material was oblique and followed the structural control of the instability caused by discontinuity sets. Unfavorable geological conditions, abnormal rainfall, and excavations on the cut slope may have contributed to the instability.
Article
Engineering, Geological
Keren Dai, Zhiyu Li, Qiang Xu, Roberto Tomas, Tao Li, Liming Jiang, Jianyong Zhang, Tao Yin, Hao Wang
Summary: This study used multi-source remote sensing techniques to identify and evaluate the upper slope of the Aniangzhai landslide in Danba County, Sichuan Province, China. By using unmanned aerial vehicle (UAV) photogrammetry, light detection and ranging (LiDAR), and satellite-based interferometric synthetic aperture radar (InSAR) techniques, a 3D model and a digital elevation model (DEM) of the landslide were obtained, confirming the presence of large cracks and revealing its activity. The results demonstrated the usefulness of an integrated method in identifying and evaluating the potential hazard of high-altitude upper slopes and provided a reference for mitigating potential damage in the future.
Article
Environmental Sciences
Liuru Hu, Roberto Tomas, Xinming Tang, Juan Lopez Vinielles, Gerardo Herrera, Tao Li, Zhiwei Liu
Summary: This study demonstrates the potential of using space-borne InSAR and airborne LiDAR techniques, combined with a simple slope stability geotechnical model, to obtain and update inventory maps of active deformations in mining areas. By analyzing Sentinel-1 InSAR imagery and LiDAR point cloud data, various active deformation areas, including consolidation of waste dumps, earthworks, erosion, and landslides, were identified in the Sierra de Cartagena-La Union mining area in southeast Spain. The integration of InSAR and LiDAR with simple geotechnical models proves to be effective in updating inventory maps of active deformation areas in mining zones.
Article
Environmental Sciences
Hengyi Chen, Chaoying Zhao, Roberto Tomas, Liquan Chen, Chengsheng Yang, Yuning Zhang
Summary: The study combines SAR offset tracking and interferometric phase to obtain the large-gradient surface displacement. A multi-segment logistic model is proposed to simulate the temporal effect induced by repeated mining activities. The simplified probability integral method (SPIM) is used to separate the displacement of mining subsidence and landslide and assess their impact. The results show that repeated mining activities not only cause land subsidence and rock avalanches, but also accelerate landslide displacement.
Article
Engineering, Civil
Maria I. Navarro-Hernandez, Javier Valdes-Abellan, Roberto Tomas, Serena Tessitore, Pablo Ezquerro, Gerardo Herrera
Summary: This study compared two different scenarios of land subsidence in flood event models for 1992 and 2016. It found that there was a 2.04 km2 increase in flooded areas with water depths exceeding 0.7 m over the 14-year period. These findings were used to create a flood risk map and assess the economic flood risk.
WATER RESOURCES MANAGEMENT
(2023)
Article
Engineering, Electrical & Electronic
Jiayin Luo, Juan M. Lopez-Sanchez, Francesco De Zan, Jordi J. Mallorqui, Roberto Tomas
Summary: This study explores the increase in the number of measurement points by using the VH channel as selection criterion in persistent scatterer interferometry. Results show that the VH channel provides additional reliable measurement points by increasing the amplitude and reducing the amplitude dispersion, which extends the spatial density and improves the accuracy of deformation estimation.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2022)
Article
Environmental Studies
Roberta Boni, Pietro Teatini, Claudia Zoccarato, Carolina Guardiola-Albert, Pablo Ezquerro, Guadalupe Bru, Roberto Tomas, Javier Valdes-Abellan, Conception Pla, Maria Navarro-Hernandez, Alper Elci, Baris Caylak, Ali Hakan Oren, Khaldoun Shatanawi, Alsharifa Hind Mohammad, Husam Abu Hajar, Tommaso Letterio, Roberto Genovesi, Hazem Hreisha, Qamar Al-Mimi, Claudia Meisina
Summary: This study identifies the main issues related to groundwater management in four representative Mediterranean areas and provides valuable insights for improving the transfer of scientific knowledge and planning effective research activities. The methodology used in this study can be applied to other aquifers facing similar problems.
Article
Engineering, Electrical & Electronic
Maria Navarro-Hernandez, Javier Valdes-Abellan, Roberto Tomas, Juan M. Lopez-Sanchez, Pablo Ezquerro, Guadalupe Bru, Roberta Boni, Claudia Meisina, Gerardo Herrera
Summary: This article proposes a systematic methodology to validate Differential interferometric synthetic aperture radar (DInSAR) measurements with in-situ techniques to obtain reliable subsidence measurements. The methodology includes a literature review of common approaches, description of the proposed methodology, and the use of normalized statistics and Pearson correlation coefficient to accept/reject DInSAR data. The methodology has been applied in three well-documented study areas.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2022)