Article
Engineering, Geological
Hikaru Osawa, Yuki Matsushi, Sumio Matsuura, Takashi Okamoto
Summary: This study proposes a simplified, semiempirical hydrological model for predicting the pressure response of landslides. By measuring various hydrometeorological variables in a dormant landslide in a high snowfall area in central Japan, the researchers assessed the predictability of the short-term response of pore pressure to rainfall and/or snowmelt. Field observations and regression analysis were used to describe the buffering function of the vadose zone and accurately reproduce pressure waveforms for different water inputs using empirical parameter functions.
Article
Multidisciplinary Sciences
Katsuo Sasahara
Summary: Measurement of displacement and pore pressure in slopes revealed that surface displacement can undergo both accelerative increase up to failure and decelerative increase under constant groundwater level, indicating creep deformation. An indicator was needed for evaluating the onset of slope failure. The increase in shear displacement was categorized into three types: accelerative increase up to failure with increasing water content, accelerative increase up to failure under constant water content just prior to failure, and decelerative increase under constant water content. The void ratio was found to be an indicator of slope failure under creep deformation. When the void ratio converges to a constant value under constant water content, the shear displacement might increase up to failure, while varying void ratio indicates termination of shear displacement before failure.
SCIENTIFIC REPORTS
(2022)
Article
Geosciences, Multidisciplinary
N. J. Finnegan, J. P. Perkins, A. L. Nereson, A. L. Handwerger
Summary: The research shows how unsaturated groundwater flow processes control the onset of seasonal landslide motion and the nearly instantaneous pressure transmission within the landslide body due to rainfall, providing insights into the dynamics of infiltration into unsaturated ground.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2021)
Article
Environmental Sciences
Taili Zhang, Jianbo Wu, Qiang Sun
Summary: This study investigated the deformation and instability characteristics of a landslide with fractures during heavy rainfall. The experiment involved simulating two conditions: rainfall + water filling fractures, and rainfall + filled fractures. The results showed that fractures have a significant effect on the instability of landslides induced by rainstorms, and filling the fractures in a timely manner is an important measure for preventing and controlling landslides.
Article
Engineering, Geological
C. Di Maio, J. De Rosa, R. Vassallo
Summary: This paper investigates the influence of rainfall on deep landslides by long-term monitoring of pore water pressures and field permeability tests. The results show that pore water pressures along the slip zone respond more to rain, highlighting the importance of considering different hydraulic conductivities in different subsoil zones for evaluating landslide safety factors.
ENGINEERING GEOLOGY
(2021)
Review
Environmental Sciences
Ya-Sin Yang, Hsin-Fu Yeh, Chia-Chi Huang, Hsin-Yu Chen
Summary: Due to active orogenic movement and the monsoon climate, rainfall-induced landslide disasters often occur in Taiwan. Research on hillslope hydrology and stability is complicated by spatial heterogeneity, hydrological processes operating at various scales, spatiotemporal evolution, and geomorphological properties. Recent advances in critical zone science provide a framework for integrating physical, chemical, and biological processes and addressing the challenges related to hillslope hydrology and stability. This study reviews the progress, relevance, and common challenges in hillslope hydrology, stability, and critical zone science, and presents a process-based integrated monitoring strategy, an interdisciplinary perspective, and a coupling analysis framework and model to promote the research on hillslope stability and hydrology in Taiwan.
Article
Computer Science, Interdisciplinary Applications
Yanbo Zhang, Yueping Yin, Aiguo Xing, Yu Zhuang, Wenbin Chang
Summary: In this paper, a novel FEM-FDM model is proposed to simulate the temperature increase and excessive pore pressure buildup in coseismic landslides. The results indicate that the thermal pressurization mechanism can generate much larger excess pore pressure than seismic load does, leading to much lower effective normal stress and shear force resistance in the shear zone during the landslide motion.
COMPUTERS AND GEOTECHNICS
(2022)
Article
Geosciences, Multidisciplinary
Han-Xiang Liu, Qiang Xu, Tong Qiu, Jiang Li
Summary: The hydrological response of groundwater to rainfall was analyzed in this study using real-time field monitoring data. The study found that the response of pore-water pressure and groundwater level was significantly influenced by the rainfall pattern and the hydrological properties of the aquifer. Furthermore, different rainfall and groundwater response patterns were observed in different sections of the landslide, and three types of groundwater flow were identified.
Article
Green & Sustainable Science & Technology
Zafar Avzalshoev, Taro Uchimura
Summary: Recent abnormal weather patterns have increased the occurrence of surface landslides, highlighting the need for improved prediction and early warning systems. This research focuses on understanding soil behavior under quasi-saturation and its relationship with pore water pressure and hydraulic head. A mathematical model is used to analyze the dynamics of quasi-saturation, demonstrating the correlation between water content and water pressure. The findings offer new insights into soil moisture dynamics and contribute to advancements in landslide prediction and mitigation strategies.
Article
Water Resources
Eduardo E. Alonso
Summary: The failure of the Aznalcollar dyke was primarily due to the development of a sliding surface under the dyke, which can be attributed to factors such as the downward construction method, the brittleness of the over-consolidated clay, and the high pore pressures. The dynamics of the failure and the geometry of the dyke also played significant roles in the incident.
MINE WATER AND THE ENVIRONMENT
(2021)
Article
Engineering, Geological
Martin Vogelhuber, Erich Pimentel, Georgios Anagnostou
Summary: The construction of the new Gotthard Base Tunnel faced the challenge of squeezing behavior, which required extensive geological exploration and laboratory research. The findings provided valuable information about the behavior of weak rocks and improved testing techniques, allowing for more efficient testing processes.
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2023)
Article
Engineering, Geological
Charles Wang Wai Ng, Muhammad Usman, Haowen Guo
Summary: This paper proposes a novel multivariate long short-term memory (M-LSTM) model to predict pore-water pressure (PWP) response by using both spatial and temporal PWP data from multiple measurement locations simultaneously. Optimal measurement locations for model training are selected using principal component analysis (PCA) and silhouette value analysis. Compared with the predictions from the univariate LSTM algorithm, the proposed M-LSTM accurately predicts PWP response for non-training sensor locations and incorporates spatial and temporal variations within the data.
ENGINEERING GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Liangchen Yu, Changhong Yan, Shulan Guo, Hui Li, Jinzhong Tan, Gang Liu, Chenghua Xu, Yang Liu
Summary: Due to increasing extreme heavy rainfall events, landslides have increased significantly on gentle piedmont slopes in Jiangsu Province, China, in recent years. The Zulongding landslide is a creeping landslide at the northeastern toe of Fangshan Hill, Nanjing City, Jiangsu Province, representing a typical slide on gentle piedmont slope. The main reason for the landslide was a rise in pore pressure in the stratigraphic structure, causing a slide. The results of this study contribute to safety evaluations and the prevention of similar landslide geological hazards.
Article
Geosciences, Multidisciplinary
Melckzedeck M. Mgimba, Shu Jiang, Edwin E. Nyakilla, Grant Charles Mwakipunda
Summary: In this study, the GMDH technique was employed for the first time to predict formation pore pressures from well logs data in the Nanye 1 well. The results showed that the GMDH technique outperformed other machine learning techniques, with the lowest RMSE of 0.0308 MPa and a high coefficient of determination of 0.998. Furthermore, the GMDH technique was able to overcome challenges faced by other techniques by identifying data structure and automatically selecting relevant input data.
NATURAL RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Sun Tong, Sun Dong-ya, Wang Xie-kang, Ma Qiang, Philippe Gourbesville, Daisuke Nohara
Summary: With the increasing frequency of extreme rainfall, landslides accompanied by mudslides can cause serious damage to both lives and properties. The research findings indicate that the most severely affected areas of this debris flow are concentrated at the outfall of the gully and on both sides of the streets. The increase in pore pressure ratio significantly contributes to the longer distance of debris flow movement.
JOURNAL OF MOUNTAIN SCIENCE
(2022)
Editorial Material
Environmental Sciences
Roy C. Sidle, Roberto Greco, Thom Bogaard
Article
Construction & Building Technology
Rosa Agliata, Thom A. Bogaard, Roberto Greco, Aldo Minardo, Luigi Mollo, Susan C. Steele-Dunne
CONSTRUCTION AND BUILDING MATERIALS
(2019)
Article
Engineering, Civil
Giovanna Capparelli, E. Damiano, R. Greco, L. Olivares, G. Spolverino
JOURNAL OF HYDROLOGY
(2020)
Article
Engineering, Geological
Pasquale Marino, David J. Peres, Antonino Cancelliere, Roberto Greco, Thom A. Bogaard
Article
Engineering, Civil
C. Giudicianni, M. Herrera, A. Di Nardo, R. Greco, E. Creaco, A. Scala
JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT
(2020)
Article
Engineering, Geological
Pasquale Marino, Giovanni Francesco Santonastaso, Xuanmei Fan, Roberto Greco
Summary: The study focuses on the triggering mechanism of shallow landslides on slopes covered with unsaturated shallow pyroclastic deposits in the mountains around Naples. It suggests that the temporary storage of water in a perched aquifer in the fractured bedrock may affect slope drainage, leading to landslide predisposing conditions. Physically based modeling indicates that different responses of soil and aquifer to precipitation, influenced by antecedent conditions, can play a key role in landslide triggering.
Article
Environmental Sciences
Giovanni Francesco Santonastaso, Armando Di Nardo, Enrico Creaco, Dino Musmarra, Roberto Greco
Summary: The paper explores three different approaches to locate quality detection points in a water distribution network (WDN): empiricism, optimization, and topology. While the empirical approach commonly used is found to be unsatisfactory, the optimization-based approach, though more effective, is challenging due to its requirement of a calibrated hydraulic model. The topological approach, on the other hand, proves to be effective and easy to adopt for water utilities, as it does not require hydraulic information and simulation, making it a simpler alternative to the optimization-based approach.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Pasquale Marino, Luca Comegna, Emilia Damiano, Lucio Olivares, Roberto Greco
Article
Engineering, Geological
Roberto Greco, Luca Comegna, Emilia Damiano, Pasquale Marino, Lucio Olivares, Giovanni Francesco Santonastaso
Summary: This study analyzes the predisposing factors of rainfall-induced shallow landslides occurring along slopes of mountains around the city of Naples, comparing the impacts of two intense storms in 1999 and 2019. By simulating the response of the slopes to rainfall with a mathematical model, it is found that storm duration and antecedent precipitation are the main reasons for the different responses of slopes. The results provide insights for the interpretation of landslides in the area during late autumn to early winter.
ENGINEERING GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Pasquale Marino, Xuanmei Fan, Roberto Greco, Srikrishnan Siva Subramanian
Summary: After the 2008 Wenchuan earthquake, the frequency of rainfall-induced debris flows initially increased and then gradually reduced in the earthquake-hit region in Sichuan, China. Empirical thresholds based on precipitation characteristics and hydrologic conditions have been identified to predict post-seismic debris flow occurrences. The assessment of water balance at the catchment scale using a simplified hydrological model highlights the importance of hydrological processes in determining reliable and robust thresholds for early warning of debris flows.
Article
Computer Science, Interdisciplinary Applications
C. Giudicianni, M. Herrera, A. Di Nardo, E. Creaco, R. Greco
Summary: This paper aims to address three issues in the optimal placement of water quality sensors for protecting water distribution systems. The proposed method restricts optimization to important pipes, introduces dummy nodes, and uses a multi-criteria decision-making tool to select effective sensor locations. The method is tested on the water distribution system of Parete, Italy, showing positive results.
ENVIRONMENTAL MODELLING & SOFTWARE
(2022)
Article
Chemistry, Analytical
Pasquale Marino, Daniel Camilo Roman Quintero, Giovanni Francesco Santonastaso, Roberto Greco
Summary: Steep slopes in Campania, Southern Italy, covered by loose pyroclastic deposits, are prone to landslides and debris flows due to heavy rainfall. The slope of Cervinara experienced a destructive flowslide in December 1999 triggered by intense rain. Hydrometeorological monitoring has been conducted since 2017 to study the water balance and hydrological processes involving the cover and shallow groundwater system. A low-cost network using capacitive sensors and IoT technology has been tested to expand hydrological data collection for early warning systems in landslide-prone areas.
Article
Environmental Sciences
Roberto Greco, Pasquale Marino, Thom A. Bogaard
Summary: The occurrence of rainfall-induced landslides is increasing worldwide due to land use and climate changes. While hydrological processes have been marginally considered in landslide research, there have been significant advancements in understanding the role of hydrology in landslide initiation and prediction.
WILEY INTERDISCIPLINARY REVIEWS-WATER
(2023)
Article
Geosciences, Multidisciplinary
Yi Luo, Jiaming Zhang, Zhi Zhou, Juan P. Aguilar-Lopez, Roberto Greco, Thom Bogaard
Summary: This work presents an experimental and numerical study of preferential flow induced by desiccation cracks (PF-DC) considering the dynamic changes of cracks. Experimental results showed that the maximum crack ratio and aperture decreased with higher evaporation intensity, and self-closure phenomenon of cracks was observed during low-evaporation periods. Simulation results showed that the dynamic dual-permeability preferential flow model (DPMDy) better described crack evolution and hydrological response compared to the single-domain model (SDM) and rigid dual-permeability model (DPM) with fixed crack ratio and hydraulic conductivity.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Luca Comegna, Emilia Damiano, Roberto Greco, Lucio Olivares, Luciano Picarelli
Summary: In recent decades, steep slopes in the Campania region of southern Italy have experienced shallow, fast landslides triggered by rainfall, with researchers installing an automatic monitoring station to study the nature and influencing factors of these events. Data collected in 2011 on water content, suction, rainfall depth, and temperature, as well as the hysteresis of soil response to weather forcing, were reported in a freely available paper.
EARTH SYSTEM SCIENCE DATA
(2021)
