Article
Environmental Sciences
Simone Mineo, Davide Calio, Giovanna Pappalardo
Summary: This research focuses on extending the means of estimating geomechanical parameters of rock masses through non-contact methodologies. By coupling UAV-based photogrammetry and Infrared Thermography, the study compares different approaches for the extraction of discontinuity spatial data and introduces novel parameters for thermal analysis. The results were validated by field campaign, demonstrating the feasibility of remote survey of rock masses and contributing to the scientific and technical casuistry in this field.
Article
Engineering, Geological
Farid Laouafa, Jianwei Guo, Michel Quintard
Summary: Many soluble rocks can dissolve in contact with fluids, leading to various geological phenomena such as subsidence, sinkholes, and underground collapse. This paper discusses the dissolution of underground soluble rocks and the geomechanical consequences using a Diffuse Interface Model. The method is suitable for various soluble rocks, with examples focusing on gypsum.
ROCK MECHANICS AND ROCK ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Simone Mineo, Giovanna Pappalardo, Salvatore Onorato
Summary: Dealing with rockfalls in mountainous areas presents technical survey difficulties, particularly when cultural heritage is at risk. This paper integrates ground and UAV surveys to assess rockfall risks in a tourist area in southern Italy. The study highlights the need for mitigation measures to protect cultural heritage from natural threats like rockfalls.
Article
Environmental Sciences
Luca Tavasci, Alessandro Lambertini, Davide Donati, Valentina Alena Girelli, Giovanni Lattanzi, Silvia Castellaro, Stefano Gandolfi, Lisa Borgatti
Summary: This paper describes the procedure for building a high-quality 3D model of a rocky pinnacle in the Dolomites, Italy, using Structure from Motion (SfM) techniques. The study compares models of different qualities and point densities to determine the optimal trade-off between processing time and accuracy. The results show that higher quality models allow for more detailed mapping of discontinuities, with some drawbacks due to noise. The paper also discusses the limitations and challenges of performing discontinuity mapping in the different models.
Article
Energy & Fuels
Ben Jahnke, Hiroki Sone, Hao Guo, Chris Sherman, Ian Warren, Corne Kreemer, Clifford H. Thurber, Kurt L. Feigl
Summary: The WHOLESCALE project seeks to simulate the stress distribution and evolution in the San Emidio geothermal system using a thermo-hydro-mechanical reservoir model. The stress state of the reservoir was inferred by analyzing the focal mechanisms of microseismic events during a geothermal power plant shutdown in 2016. This analysis was supplemented with geophysical and geological data, resulting in 78 different stress models with reasonable ranges for maximum compressive horizontal stress (SHmax) azimuth and ratios of principal stress magnitudes. Evaluation of slip tendencies suggests a transtensional stress state with an SHmax azimuth between N and N30 circle E.
Article
Engineering, Environmental
Rahul Khanna, R. K. Dubey
Summary: Evaluation of stability of road-cut slopes in mountainous terrain is crucial for safe and economical development. This study collected data from ten cut slopes in the Kullu area, Himachal Pradesh, India, and utilized various classification systems to assess stability. By analyzing rock mass and discontinuity characteristics, as well as conducting laboratory testing, the study compared stability assessment methods and proposed design charts for ensuring slope stability.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Energy & Fuels
Dorcas S. Eyinla, Michael A. Oladunjoye, Abel I. Olayinka, Boris B. Bate
Summary: The study on three wells in the Niger Delta Basin found that as porosity increases, both compressional wave velocity (Vp) and shear wave velocity (Vs) of the rock decrease, and there is a linear correlation between Poisson's ratio and Vp/Vs; furthermore, the acoustic impedance of the materials decreases with increasing porosity, and the depth plot of the impedance shows divergence.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2021)
Article
Engineering, Civil
Jian-Bin Li, Zu-Yu Chen, Xu Li, Liu-Jie Jing, Yun-Pei Zhang, Hao-Han Xiao, Shuang-Jing Wang, Wen-Kun Yang, Lei-Jie Wu, Peng-Yu Li, Hai-Bo Li, Min Yao, Li-Tao Fan
Summary: This review discusses the application scenarios of machine learning-supported prediction and optimization efficiency in tunnel boring machines (TBMs). It shows that machine prediction for rock mass grades is in reasonable agreement with the ground truth. The review also highlights successful predictions of collapse sections and preliminary studies on optimal penetration rate and cost. Furthermore, it presents the achievements of the Lotus Pool Contest and discusses future prospects for intelligent TBM construction based on big data and machine learning.
Article
Engineering, Environmental
Jagadish Kundu, Kripamoy Sarkar, A. K. Verma, T. N. Singh
Summary: Kinematic analysis is a widely used method to assess stability condition in jointed rock slopes and predict block detachments. A novel method based on adjustment factors of slope mass rating (SMR) has been introduced in this paper to quantify kinematic susceptibility, with the help of a computer application named EasySMR. The algorithm has been validated with results from 35 rock slopes in the Himalayan region, showcasing its rigorous and accurate analysis capabilities.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2022)
Article
Engineering, Geological
Linken Shi, Hui Zhou, Ming Song, Jingjing Lu, Zhenjiang Liu
Summary: This study analyzed the stability of surrounding rocks in composite strata under the disturbance of TBM excavation through geomechanical model tests. The results showed significant differences in mechanical behaviors of surrounding rocks as the strength ratio of the surrounding rocks decreased. The use of DSCM and macro-fracture morphology visually reflected the deformation differences of the composite rock mass.
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2021)
Review
Energy & Fuels
Usama Alameedy, Ahmed Fatah, Ahmed K. Abbas, Ahmed Al-Yaseri
Summary: Acid treatment is widely used in the petroleum industry to stimulate carbonate formations. However, the generated wormholes can cause degradation in the mechanical properties of rocks, which is a key issue. Therefore, careful monitoring of the acidizing procedure and post-treatment evaluation of the rocks are crucial for matrix acidizing.
Article
Multidisciplinary Sciences
Guojun Sun, Haijun Liu, Dong Cui, Chunmei Chai
Summary: This study used traditional statistical methods to explore the spatial variability and influencing factors of soil nutrients in the Yili River Valley. The results showed significant correlations between different nutrients, and the ordinary Kriging interpolation results revealed the distribution patterns of the nutrients. These findings are important for the rational exploitation of land resources in the Yili River Basin.
Article
Green & Sustainable Science & Technology
Bing Dai, Danli Li, Lei Zhang, Yong Liu, Zhijun Zhang, Shirui Chen
Summary: This study compared the classification results of different rock mass classification methods in the deep area and found differences in their relative closeness. Using various methods, the entropy weight and relative closeness of each method were calculated, and the IRMR method was selected for comprehensive analysis based on the results. The importance degree of evaluation index was defined, and the study provided a reference for establishing a deep rock mass classification method.
Article
Geology
Ibnu Rusydy, Nafisah Al-Huda
Summary: The study determined the rock mass quality on slopes in Aceh Province, Indonesia, with RMR89 for limestone ranging from 58 to 64 and RMR14 ranging from 61.7 to 67.7. The empirical correlation between RMR89 and GSI was similar to previous studies, but the relationship between RMR14 and RMR89 was different, showing lower values than other rocks.
CARBONATES AND EVAPORITES
(2021)
Article
Geochemistry & Geophysics
David Wilson, Leslie Smith, Colleen Atherton, Lianna J. D. Smith, Richard T. Amos, David R. Barsi, David C. Sego, David W. Blowes
Summary: This study deconstructed a large-scale field waste rock experiment and obtained a set of spatially located samples for geochemical, mineralogical, and particle-size distribution analysis. Geostatistical analyses revealed that sulfur, carbon content, and hydraulic conductivity showed little spatial dependence and could be approximated using a log-normal distribution. The saturated hydraulic conductivity of the matrix material was found to play a significant role in water flow and mineral reactivity in the waste rock pile.
Review
Engineering, Geological
F. Ferrari, A. Giacomini, K. Thoeni
ROCK MECHANICS AND ROCK ENGINEERING
(2016)
Article
Engineering, Geological
F. Ferrari, A. Giacomini, K. Thoeni, C. Lambert
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2017)
Article
Geosciences, Multidisciplinary
L. Vezzoli, T. Apuani, C. Corazzato, A. Uttini
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
(2017)
Article
Engineering, Environmental
Federica Ferrari, Martin Ziegler, Tiziana Apuani, Simon Loew
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2019)
Article
Construction & Building Technology
Giacomo Armetti, Maria Rita Migliazza, Federica Ferrari, Andrea Berti, Paolo Padovese
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2018)
Article
Engineering, Geological
Greta Bajni, Tiziana Apuani, Giovanni Pietro Beretta
ENGINEERING GEOLOGY
(2019)
Article
Engineering, Geological
Greta Bajni, Corrado A. S. Camera, Tiziana Apuani
Summary: This study analyzed the relationships between climate processes and rockfall phenomena in the Aosta Valley of northern Italy from 1990 to 2018. The majority of rockfall events were found to be associated with non-ordinary climatic conditions, with spring events linked to freeze-thaw cycles, autumn events related to effective water inputs, and summer events connected to wet and dry episodes. The findings suggest that different strategies for defining critical thresholds for climate indices can be explored to apply across the study area, with a seasonal trend in the influence of climate on rockfalls.
Article
Environmental Sciences
Corrado A. S. Camera, Greta Bajni, Irene Corno, Mattia Raffa, Stefania Stevenazzi, Tiziana Apuani
Summary: The study aimed to develop a susceptibility model for shallow landslides that can adapt to climate changes by introducing climate-related variables, improving model performance, and adaptability.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Geological
Andrea Morcioni, Tiziana Apuani, Francesco Cecinato
Summary: This study analyzes the thermo-mechanical stress-strain history of an Alpine slope, focusing on the historical Cimaganda large landslide. Accurate geomorphological and geomechanical characterization was conducted, leading to the development of a conceptual model of the slope. A thermo-mechanical semi-coupled approach was used to simulate the slope's evolution, considering both glacial debuttressing and temperature effects. The results emphasize the importance of thermal processes in preparing rock-slope instabilities.
ROCK MECHANICS AND ROCK ENGINEERING
(2022)
Article
Geography
Enrico Pigazzi, Riccardo Bersezio, Andrea Morcioni, Davide Tantardini, Tiziana Apuani
Summary: This study focuses on the identification and mapping of the Piuro 1618 landslide in the Central Alps, discussing its source area, dynamics, deposit extent, and volume estimation. The research highlights the significance of geological mapping in understanding historical and archaeological landscape changes.
Article
Geosciences, Multidisciplinary
Andrea Morcioni, Tiziana Apuani, Francesco Cecinato
Summary: This study develops a 3D conceptual geomechanical model using field and laboratory analysis and stress-strain numerical modelling to reanalyze and define the geological features and landslide dynamics of the 1618 event. The results suggest that rainfall was a possible triggering factor for the landslide and also validate the significant role of geological elements outcropping along the slope in the landslide process.
Article
Engineering, Geological
Greta Bajni, Corrado A. S. Camera, Tiziana Apuani
Summary: The study aimed to develop a dynamic rockfall susceptibility model by incorporating climate predictors. Critical thresholds relating three climate indices and rockfall occurrence were defined and applied in the Aosta Valley region. The susceptibility model was optimized using a stepwise procedure with generalized additive models (GAM). Topographic, climatic and snow-related variables were considered as predictors, and their physical plausibility was verified. Key findings include the importance of climate predictors, the effectiveness of managing inventory bias, and the efficiency of the PCA strategy in reducing model concurvity.
Article
Water Resources
Tiziana Apuani, Marco d'Attoli, Marco Masetti, Federico Fischanger
ACQUE SOTTERRANEE-ITALIAN JOURNAL OF GROUNDWATER
(2018)
Article
Engineering, Geological
Federica Ferrari, Klaus Thoeni, Anna Giacomini, Cedric Lambert
GEORISK-ASSESSMENT AND MANAGEMENT OF RISK FOR ENGINEERED SYSTEMS AND GEOHAZARDS
(2016)
