Article
Engineering, Geological
L. Cascini, S. Cuomo, A. Di Mauro, M. Di Natale, S. Di Nocera, F. Matano
Summary: Rainfall can trigger different types of flow-like mass movements, such as debris flows, hyperconcentrated flows, and flash floods. The study analyzed combined types of flows that occurred in Atrani village, southern Italy in September 2010, using a multidisciplinary approach including field surveys, geological analysis, video processing, and numerical modeling. The multidisciplinary analysis proved effective in enhancing the understanding of complex flow-like mass movements.
GEORISK-ASSESSMENT AND MANAGEMENT OF RISK FOR ENGINEERED SYSTEMS AND GEOHAZARDS
(2021)
Article
Engineering, Geological
Marialaura Tartaglia, Marianna Pirone, Gianfranco Urciuoli
Summary: In the Campania region, flow-like landslides and shallow slip frequently occur on sloping pyroclastic surfaces under partially saturated conditions. Early warning systems based on empirical precipitation intensity-duration thresholds often result in missed and false alarms. This study focuses on assessing the role of groundwater conditions in initiating shallow landslides and presents a numerical approach to reproduce the current hydraulic condition in the slope. The results show that the water storage in the loose soil cover is an effective indicator of the average hydraulic state of the slope.
Article
Geography, Physical
Daniel Germain, Ludwig Stabile-Caille
Summary: The active talus slopes of the northern Gaspe Peninsula have a unique character due to the highly fissile lithology of the rockwalls and the diversity of mass-wasting processes. The regional geology, deglaciation patterns, and evolution towards a cold temperate morphoclimatic regime still influence the geomorphological dynamics of scree slopes today. At a local scale, the orientation of the main coastal valleys affects snow cover and freeze-thaw cycles, which in turn influence the dominant processes on the talus slopes.
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)
Article
Geosciences, Multidisciplinary
Mitsuhiro Nakagawa, Akiko Matsumoto, Mitsuki Yoshizawa
Summary: Determining the timing of past sector collapse events at a volcanic edifice is crucial for understanding the evolution of the volcanic system and potential volcanic hazards. By studying the tephrostratigraphy preserved in the soil above the collapse-generated debris avalanche deposits, researchers were able to establish a more accurate age for the sector collapse event at Usu volcano. The findings suggest that the transport and emplacement mechanism of the sector collapse should be revised.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Engineering, Geological
Marianna Pirone, Rosa Di Maio, Giovanni Forte, Claudio De Paola, Emanuela Di Marino, Rosanna Salone, Antonio Santo, Gianfranco Urciuoli
Summary: This study proposes a multidisciplinary approach to investigate the role of local geological and geotechnical factors on the groundwater regime in slopes prone to flow-like landslides. By integrating geological, geophysical, and geotechnical investigations, the study provides insights into the hydraulic response of the soil cover to rainfall and its interaction with the underlying bedrock. The approach has been successfully applied to a test site in southern Italy, demonstrating its effectiveness.
ENGINEERING GEOLOGY
(2023)
Article
Environmental Sciences
Guido Leone, Pasquale Clemente, Libera Esposito, Francesco Fiorillo
Summary: This study focuses on debris flows in the area of San Martino Valle Caudina in Southern Italy, particularly the event in December 2019. Through hydrological analysis, it was found that the most critical condition for debris-flow initiation occurs when a severe or extreme rainfall lasts for 12 hours or more. Trend analysis did not show statistically significant increases in rainfall intensity lasting 6 hours or more.
Article
Geosciences, Multidisciplinary
Ratan Das, Parag Phukon, T. N. Singh
Summary: Slope failures are common during the Indian Summer Monsoon in the Arunachal Himalaya region, causing significant damage to the landscape, life, and property. Factors such as rainfall intensity, geodynamic conditions, and human activities contribute to the high frequency of landslides. The study aims to improve understanding of disaster potential, cause and effect relationships, and sediment generation in Himalayan rivers.
Article
Engineering, Geological
Kewei Feng, Duruo Huang, Gang Wang
Summary: A two-layer hydro-mechanically coupled material point method has been developed for simulating the behavior of unsaturated soils, showing its application in phenomena such as water infiltration, soil collapse, and rainfall-induced slope failure. Parametric studies indicate that soil cohesion, dilatancy, and friction angle play significant roles in slope failure mechanisms.
Article
Chemistry, Multidisciplinary
Glenn Adriel Adiguna, Martin Wijaya, Paulus Pramono Rahardjo, Andy Sugianto, Alfrendo Satyanaga, Abdul Halim Hamdany
Summary: Ignoring soil suction and using unsaturated soil mechanics when assessing slope stability in Indonesia is common, despite the difficulties in obtaining accurate input parameters. However, the occurrence of slope failures due to rainfall suggests that ignoring soil suction may not lead to conservative results. A case study of a rainfall-induced slope failure highlighted the importance of considering the interaction between infiltration and soil suction. Through conventional site investigations and estimation of unsaturated soil parameters, it was shown that these estimated parameters can accurately capture the failure mechanism.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Geological
Shun Wang, Gregor Idinger, Wei Wu
Summary: This paper presents the results of centrifuge tests on rainfall-induced instabilities in variably saturated slopes, highlighting the key roles of rainfall intensity and profiles of the degree of saturation in different stages of instability.
Article
Engineering, Geological
Kewei Feng, Gang Wang, Duruo Huang, Feng Jin
Summary: The Material Point Method (MPM) was improved in this study to simulate coseismic slope stability and liquefaction-induced embankment failure under earthquake loading. The results demonstrate the advantage of MPM in handling liquefaction-induced large deformations, with the potential to quantitatively assess risks and consequences associated with seismic slope failure and soil liquefaction.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2021)
Article
Engineering, Geological
Chang Zhou, Wei Huang, Dong Ai, Huiyuan Xu, Jingjing Yuan, Lei Kou, Xiaolin Luo
Summary: Extreme rainfall events in China have caused an increase in annual precipitation, resulting in geological disasters. This study examines a catastrophic landslide in Wulong District, Chongqing, China, in 2020, analyzing its deformation process and triggering factors. The research provides valuable information for early warning and understanding the mechanism of landslides in similar geological settings.
Article
Geosciences, Multidisciplinary
Li Mingli, Cheng Jianlong
Summary: The 5.12 Wenchuan earthquake in 2008 caused a large number of loose deposits on the slope in the formation area, posing challenges for the monitoring and early warning of postearthquake debris flows. This study used hydraulics to analyze the characteristics and rules of groundwater level changes and the effects of hydrodynamic pressure and hydrostatic pressure on the accumulation body. Based on field data and slope gradient, the accumulation body was divided and slope stability analysis was performed. The research results identified two types of slope starting modes and provided insights into the critical rainfall conditions for slope failure.
Article
Engineering, Environmental
Ming Chang, Xiangyang Dou, Tristram C. Hales, Bin Yu
Summary: Research in the Wenchuan earthquake region of Southwest China has found that post-earthquake debris flows can be classified into short-term, medium persistent, and long-term intermittent rainfall patterns, each with different characteristics in terms of rainfall intensity, duration, and cumulative rainfall. These patterns have implications for infiltration, saturation, and triggering mechanisms of debris flows. By establishing rainfall-threshold patterns, it is possible to predict the critical initiation conditions of debris flows in different watersheds based on intensity-duration curves.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Engineering, Geological
Yong Kong, Mingfu Guan
Summary: This study performs hydro-mechanical simulations of slit dams and provides design diagrams to quantitatively link flow properties and design indices. The results show nonlinear correlations between design indices and flow properties, and spillway width affects retention efficiency.
ENGINEERING GEOLOGY
(2023)
Article
Engineering, Geological
E. Damiano, R. Greco, A. Guida, L. Olivares, L. Picarelli
ENGINEERING GEOLOGY
(2017)
Article
Engineering, Geological
P. Madonia, M. Cangemi, L. Olivares, Y. Oliveri, S. Speziale, P. Tommasi
Article
Engineering, Civil
Giovanna Capparelli, E. Damiano, R. Greco, L. Olivares, G. Spolverino
JOURNAL OF HYDROLOGY
(2020)
Article
Chemistry, Multidisciplinary
Vincenzo Minutolo, Enis Cerri, Agnese Coscetta, Emilia Damiano, Martina De Cristofaro, Luciana Di Gennaro, Luca Esposito, Paolo Ferla, Maurizio Mirabile, Lucio Olivares, Renato Zona
APPLIED SCIENCES-BASEL
(2020)
Article
Environmental Sciences
Pasquale Marino, Luca Comegna, Emilia Damiano, Lucio Olivares, Roberto Greco
Article
Chemistry, Analytical
Aldo Minardo, Luigi Zeni, Agnese Coscetta, Ester Catalano, Giovanni Zeni, Emilia Damiano, Martina De Cristofaro, Lucio Olivares
Summary: This study reports the experimental application of distributed optical fiber sensors in monitoring small-scale granular and volcanic rock slopes, demonstrating their ability to reveal sudden soil strain increase and monitor fractures in rocks. The research offers valuable insights into using these sensors for early warning systems against landslides in various types of materials.
Article
Instruments & Instrumentation
L. Di Gennaro, E. Damiano, M. De Cristofaro, N. Netti, L. Olivares, R. Zona, L. Iavazzo, A. Coscetta, M. Mirabile, G. A. Giarrusso, A. D'Ettore, V Minutolo
Summary: The development of innovative early warning systems, structural health monitoring, and structural health monitoring and reinforcement systems is crucial for preventing potential dangerous events. This paper introduces a new smart hybrid transducer that can perform real-time distributed measurements of various elements and demonstrates its reliability and accuracy through experimental validation.
SMART MATERIALS AND STRUCTURES
(2022)
Article
Mechanics
Hossein Darban, Raimondo Luciano, Reza Darban
Summary: The size-dependent buckling problem of cracked micro- and nanocantilevers is analyzed using the stress-driven nonlocal theory of elasticity and Bernoulli-Euler beam model. The effects of crack length and location, as well as nonlocality, on critical loads and mode shapes are investigated.
Article
Geosciences, Multidisciplinary
Luciano Picarelli, Lucio Olivares, Salvatore Lampitiello, Reza Darban, Emilia Damiano
Article
Geosciences, Multidisciplinary
Reza Darban, Emilia Damiano, Aldo Minardo, Lucio Olivares, Luciano Picarelli, Luigi Zeni
Article
Geosciences, Multidisciplinary
Lucio Olivares, Emilia Damiano, Nadia Netti, Martina de Cristofaro