Article
Chemistry, Multidisciplinary
Manli Qu, Faning Dang
Summary: High slope simulation analysis is crucial for slope engineering design, construction, and operation management. This paper establishes a refined finite element model and carries out fluid-solid coupling numerical simulation analysis to explain the failure mechanism of slopes under excavation unloading and heavy rainfall.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Geological
Riccardo Scarfone, Simon J. Wheeler, Colin C. Smith
Summary: Intense or sustained rainfall is the most common cause of slope instability, and capillary barrier systems (CBSs) can effectively prevent rainwater infiltration into the soil to prevent slope instability. The effectiveness of CBSs depends on climate conditions and the materials used. Multi-layered CBSs and multiple drains are effective solutions to widen the applicability range of CBSs to higher slopes.
Article
Environmental Studies
Okoli Jude Emeka, Haslinda Nahazanan, Bahareh Kalantar, Zailani Khuzaimah, Ojogbane Success Sani
Summary: The study highlights vegetation establishment as a low-cost and practical measure for slope reinforcement to prevent landslides. Through the analytic hierarchy process model and vegetation planting experiments, it validates the effectiveness of vegetation root and ground cover in slope stabilization.
Article
Engineering, Civil
Fakher Hamrouni, Houcem Trabelsi, Mehrez Jamei, Sebastia Olivella
Summary: The article proposes a strategy to assess slope movements after heavy rainfall by combining reduced physical models and numerical simulations, which reduces costs and improves monitoring efficiency. The study introduces a macro gravity physical model as an alternative to traditional models and suggests a hydraulic gradient method for tracking slope movements under different rainfall conditions. Validation of the proposed model shows good agreement with experimental results.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2021)
Article
Engineering, Geological
Josip Peranic, Zeljko Arbanas
Summary: Numerical modeling has been widely used in studying rainfall-induced landslides, but the influence of temporal resolution of rainfall data in the simulations has received little attention. This study investigates the effects of different temporal resolutions of realistic rainfall data on infiltration and slope stability analysis using a 2D numerical model. The results show that using coarse resolution rainfall data can lead to unrealistically high infiltrated volumes and a conservative prediction of slope failure time, suggesting hourly rainfall data as the optimal input for the case study.
Article
Environmental Sciences
Jun Li, Bin Li, Kai He, Yang Gao, Jiawei Wan, Weile Wu, Han Zhang
Summary: Underground mining activity in the karst mountain in southwestern China has caused several large-scale rocky landslides and serious casualties. This study used a combination of methods including UAV photography, geophysical detection, and numerical simulation to investigate the formation mechanism of landslides. The results revealed the stages of the failure process and the main causes of the landslides, providing ideas for the prevention and mitigation of similar disasters.
Article
Environmental Sciences
Agnese Innocenti, Ascanio Rosi, Veronica Tofani, Veronica Pazzi, Elisa Gargini, Elena Benedetta Masi, Samuele Segoni, Davide Bertolo, Marco Paganone, Nicola Casagli
Summary: A reliable stability analysis for a landslide slope requires understanding of the internal geometries and accurate characterisation of geotechnical parameters. Geotechnical models are commonly based on geomorphological data and direct geotechnical investigations. However, empirical correlations between seismic and geotechnical parameters enable investigation in areas difficult to reach with direct instrumentation. Geophysical tests can estimate N-SPT value and derive friction angle from seismic noise measurements, providing useful information when direct data are unavailable or other tests are unreliable.
Article
Environmental Sciences
Xuguo Shi, Xie Hu, Nicholas Sitar, Robert Kayen, Shengwen Qi, Houjun Jiang, Xudong Wang, Lu Zhang
Summary: Landslides are common geohazards influenced by natural drivers such as precipitation, land degradation, water erosion, and ground shaking, as well as human alterations like water impoundment. The reactivation of the Guobu rockslide during reservoir impoundment in China revealed a correlation between rainfall and landslide movement. Radar interferometry was used to monitor the seasonal impact of precipitation on rockslide movement, providing valuable insights into the hydraulic diffusivity and thickness of the moving rock mass.
REMOTE SENSING OF ENVIRONMENT
(2021)
Article
Engineering, Geological
Nilo Lemuel J. Dolojan, Shuji Moriguchi, Masakazu Hashimoto, Nguyen Xuan Tinh, Hitoshi Tanaka, Kenjiro Terada
Summary: This study introduces a catchment-scale, multihazard approach to assess landslides and flooding caused by heavy rainfall. By combining hydrological and geotechnical principles, the model successfully simulates the hydrologic and geotechnical response of the catchment, providing a practical framework for a unified early warning system for landslide and flood-prone areas.
ENGINEERING GEOLOGY
(2023)
Review
Geosciences, Multidisciplinary
Kun Fang, Huiming Tang, Changdong Li, Xuexue Su, Pengju An, Sixuan Sun
Summary: This article provides an overview of the application of centrifuge modelling in landslide science. It discusses the experimental principles, various triggering factors for landslide models, and methods for mitigating landslides in centrifuge. The behaviors of centrifuge models, including deformation and failure mechanisms, are also discussed. Based on this review, a best-practice methodology for preparing a centrifuge landslide test is proposed, along with suggestions for further research efforts.
GEOSCIENCE FRONTIERS
(2023)
Article
Meteorology & Atmospheric Sciences
M. Koukoula, C. S. Schwartz, E. Nikolopoulos, E. N. Anagnostou
Summary: This study investigates the impact of soil moisture uncertainty on simulated precipitation over the CONUS using the Weather Research and Forecasting model. Results show different characteristics of the soil moisture-precipitation relationship under different climate and meteorological conditions. The study suggests that representing initial soil moisture does not consistently improve the simulation of precipitation.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Materials Science, Multidisciplinary
Chengzhong Wang, Shuangjian Niu
Summary: This paper uses the four grades slope of Yunmao Expressway in China as an example to study the stability of reinforced weathered rock slope through engineering monitoring and numerical simulation. The results show that the reinforcement method can effectively guarantee the stability of the slope.
FRONTIERS IN MATERIALS
(2023)
Article
Multidisciplinary Sciences
Adamu Beyene, Narobika Tesema, Fekadu Fufa, Damtew Tsige
Summary: A landslide occurred in Lalisa village, Jimma Zone, Ethiopia, causing severe damage to 27 hectares of land. The study investigated the root cause of the incident and analyzed the safety of the sliding slope, proposing remedial actions. The rainfall infiltration and the existence of a weak saturated zone at a certain depth were identified as the driving factors for the occurrence and propagation of the landslide incident.
Article
Chemistry, Analytical
Cheng Zhong, Chang Li, Peng Gao, Hui Li
Summary: Post-seismic vegetation recovery is crucial for local ecosystem and slope stability, and this study found that about 60% of landslide vegetation in the Wenchuan earthquake area reaches pre-earthquake levels within ten years and is expected to fully recover within 20 years. Vegetation recovery is significantly influenced by topographic factors, especially elevation and slope, while being minimally related to distance to epicenter, fault ruptures, and rivers.
Article
Engineering, Environmental
Xin Liu, Yu Wang, Anthony Kwan Leung
Summary: Rainfall plays a crucial role in triggering landslides in many areas. Understanding the relationship between rainfall characteristics and slope stability is essential for mitigating landslide risks. Previous studies have shown that there exists a threshold curve of rainfall intensity and duration for a specific slope, beyond which landslides are expected to occur. This study aims to overcome the limitations and assumptions of previous research and investigate the rainfall intensity-duration control of landslides using real slope case histories and rainfall records. A generalized procedure called the critical rainfall pattern curve (CRPC) is proposed, which provides a simple yet effective tool for slope-specific landslide prediction and risk assessment.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Correction
Materials Science, Multidisciplinary
Valentina Marzulli, Luis Armando Torres Cisneros, Annamaria di Lernia, Christopher Robert Kit Windows-Yule, Francesco Cafaro, Thorsten Poeschel
Summary: The research paper contains errors and a correction has been published.
Editorial Material
Engineering, Geological
Paul J. Vardanega, Gaetano Elia, Kai Yao
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-GEOTECHNICAL ENGINEERING
(2021)
Article
Engineering, Geological
D. Simpson, M. Rouainia, G. Elia
Summary: The construction industry in Abu Dhabi is thriving, with ambitious structures, but the geological understanding of the region is relatively poor, leading to overly conservative foundation designs. A calcareous mudstone studied in this paper exhibits characteristics between soil and rock, requiring a testing approach that combines methods from both disciplines.
ROCK MECHANICS AND ROCK ENGINEERING
(2021)
Review
Engineering, Geological
Gaetano Elia, Mohamed Rouainia
Summary: This paper introduces the application of nonlinear time domain numerical approaches in geotechnical earthquake engineering, focusing on the dynamic finite element method. The key factors governing its predictive capabilities are discussed, providing protocols for evaluating the performance of critical geotechnical infrastructures and promoting familiarity of advanced nonlinear soil dynamic analysis among geotechnical practitioners.
GEOTECHNICAL AND GEOLOGICAL ENGINEERING
(2022)
Article
Geosciences, Multidisciplinary
Yusuf Guzel, Gaetano Elia, Mohamed Rouainia, Gaetano Falcone
Summary: The selection of input motions at the seismic bedrock is crucial for estimating ground shaking. However, the effect of input motion scaling strategy on structural response is commonly studied without considering the presence of the soil deposit. In this study, different soft soil deposits were modeled using a nonlinear constitutive model, and more than 300 ground response analyses were conducted. The results showed that using an advanced elasto-plastic soil constitutive model accounted for nonlinear ground response effects, different scaling strategies led to comparable mean values of amplification factors, and variability of amplification factors was significantly reduced when the scaling strategy was compatible with the target spectrum over a specified period range.
Article
Geosciences, Multidisciplinary
Gaetano Falcone, Gaetano Elia, Annamaria di Lernia
Summary: This paper describes the preliminary results of numerical analysis on the impact of seismic wave amplification on slope susceptibility. The results show that the thickness of the shear band greatly influences the amplification factors at the ground surface. The highest amplification factors occur at longer periods for gentle slopes with thick shear bands, while for steep slopes, the highest level of amplification is achieved at intermediate periods. In addition, the vertical component of acceleration can be considerably amplified, especially for steep topography.
Article
Computer Science, Interdisciplinary Applications
Lowell Tan Cabangon, Gaetano Elia, Mohamed Rouainia, Suraparb Keawsawasvong
Summary: Current research heavily relies on 2D modelling to predict tunnel seismic behavior, which may lead to inaccurate predictions due to the three-dimensional effects and soil-structure interaction. Natural soils often exhibit stiffness degradation during strong earthquakes, which cannot be captured by simple constitutive models. This paper presents advanced 3D numerical simulations that consider soil structure degradation, highlighting the significance of accurately predicting tunnel lining forces under multi-directional seismic loading.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Remote Sensing
Alberico Sonnessa, Annamaria di Lernia, Davide Oscar Nitti, Raffaele Nutricato, Eufemia Tarantino, Federica Cotecchia
Summary: In this study, the Multi-Temporal Interferometry SAR (MTInSAR) technique based on COSMO-SkyMed and Sentinel-1 SAR acquisitions and ground measurements was used to analyze the ground surface displacement in the urban area of Chieuti, Southern Italy. By utilizing the complementary characteristics of the different datasets, the spatial and temporal evolution of the displacement field was accurately characterized, the sectors with instability problems were identified, and the reliability of the detected displacement trends was comprehensively assessed. The analysis confirmed that the instability process was related to a deep landslide mechanism affecting the western slope of the town.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2023)
Article
Engineering, Geological
G. Elia, M. Rouainia, A. di Lernia, A. F. D'Oria
Summary: This study examines the dynamic behavior of soils through a posteriori analysis, estimating the variations in soil shear modulus and material damping characteristics under different seismic intensities using shear stress-strain histories. The results indicate that kinematic hardening models are effective in capturing wave propagation during intense seismic loading, despite the typically low frequency of occurrence of the largest closed cycles.
GEOTECHNIQUE LETTERS
(2021)
Article
Construction & Building Technology
Valeria Leggieri, Annamaria di Lernia, Gaetano Elia, Domenico Raffaele, Giuseppina Uva
Summary: The paper uses a numerical approach to investigate the effects of vibrations on reinforced concrete buildings in dolomitic rocks induced by excavation works in an urban area in southern Italy. It suggests that a mitigation strategy can significantly reduce the vibrations induced by excavation processes on existing buildings.
