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Study on mechanical properties and acoustic emission characteristics of mudstone-clay composites under uniaxial compression Eng. Geol. (IF 7.4) Pub Date : 2024-03-16 Huaidong Liu, Changyou Liu, Xin Yue, Jun Wang
In the western mining area of China, mudstone-clay composite roofs are commonly found in coal seam roadway. This kind of roadway surrounding rock has poor self-stabilization ability and is difficult to support. Therefore, through a series of uniaxial loading and acoustic emission (AE) experiment, this study explores the mechanical properties of mudstone-clay composites (MCCs) considering different
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Hydraulic properties of stressed granite fractures with heat-induced void alternation: An experimental and numerical study Eng. Geol. (IF 7.4) Pub Date : 2024-03-13 Fei Wang, Heping Xie, Cunbao Li, Minghui Li, Xiting Long, Ke Shan, Zhihe Wang
During the extraction of geothermal heat, the changes in temperature and pressure environments can alter the mechanical and hydraulic behavior of fractured rock masses, affecting the overall transmissivity and heat extraction efficiency accordingly. This study carried out a series of experiments, including X-ray diffraction (XRD), scanning electron microscope (SEM), uniaxial compression tests, and
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Case study of a foundation failure induced by cyclic softening of clay during the 2023 Kahramanmaraş earthquakes Eng. Geol. (IF 7.4) Pub Date : 2024-03-12 İ. Tonyalı, S.O. Akbas, T. Beyaz, K. Kayabalı, C. Gokceoglu
The Kahramanmaraş Earthquakes that occurred on 6 February 2023 resulted in extensive structural failures, including damages caused by soil liquefaction. This study focused on investigating the excessive settlements observed in buildings along Ataturk Boulevard in the Golbasi district, with a primary emphasis on the toppling failure of the Kayı Apartment. Field exploration, laboratory testing, and bearing
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The effect of cyclic loading parameters on the physical, mechanical, and microcracking behavior of granite Eng. Geol. (IF 7.4) Pub Date : 2024-03-12 Shahram Ghasemi, Mashalah Khamehchiyan, Abbas Taheri, Mohammad Reza Nikudel, Ahmad Zalooli, Erfan Sadeghi
Rocks endure diverse cyclic loadings from natural and anthropogenic sources, exhibiting varied magnitudes, frequencies, and amplitudes. Understanding microcracking behavior is essential for insights into rock damage and failure. This study investigate the impact of cyclic loading parameters—frequency, amplitude, waveform (sinusoidal, square, and linear), and loading cycles—on the physical, mechanical
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National-scale assessment of railways exposure to rapid flow-like landslides Eng. Geol. (IF 7.4) Pub Date : 2024-03-11 Ivan Marchesini, Omar Althuwaynee, Michele Santangelo, Massimiliano Alvioli, Mauro Cardinali, Martin Mergili, Paola Reichenbach, Silvia Peruccacci, Vinicio Balducci, Ivan Agostino, Rosaria Esposito, Mauro Rossi
In landslide-prone regions, railway networks are vulnerable to rapid flow-like landslides, which can cause extensive damage, even at significant distances from the landslide's point of origin. The prioritization of protective measures on a national scale depends on the accurate assessment of each railway segment's exposure to landslides.
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Exploring debris flow deposit morphology in river valleys: Insights from physical modeling experiments Eng. Geol. (IF 7.4) Pub Date : 2024-03-01 Cong-Jiang Li, Yu-Xiang Hu, Gang Fan, Qing-Yang Zhu, Da-Rui Liu, Jia-Wen Zhou
A comprehensive understanding of the deposit morphodynamics of debris flows in river valleys is crucial for disaster prevention and mitigation in mountainous areas. However, debris flows in river valleys are complex and variable, and the influence of the composition and terrain on deposit mechanisms and morphology remains unclear. In this study, a series of laboratory experiments were conducted to
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LiDAR-based 3D litho-stratigraphic models calibrated with limited boreholes Eng. Geol. (IF 7.4) Pub Date : 2024-02-29 Chih-Hsiang Yeh, Yu-Chen Lu, Sara Khoshnevisan, C. Hsein Juang, Yong-Ming Tien, Jia-Jyun Dong
An accurate and reliable 3D engineering geological model (expressed herein as a 3D litho-stratigraphic model) is essential for designing slopes, underground structures, and tunnels to reduce the risk of failure. Due to budget constraints, subsurface investigations with traditional methods (e.g., boreholes and geophysical prospecting) are often limited in quantity. Insufficient investigation often leads
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Regional early warning model for rainfall induced landslide based on slope unit in Chongqing, China Eng. Geol. (IF 7.4) Pub Date : 2024-02-29 Shuhao Liu, Juan Du, Kunlong Yin, Chao Zhou, Chenchen Huang, Jun Jiang, Jin Yu
Recent advances in the diversity, precision and systematization of design methods and real-time data have led to a general elevation in spatio-temporal accuracy for regional landslide early-warning (LEW). However, the heterogeneity of the geo-environment and the differences in landslide mechanisms are always neglected in the design of LEW models, which hinder the implementation of LEW systems. This
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A semi-automatic approach for joint orientation recognition using 3D trace network analysis Eng. Geol. (IF 7.4) Pub Date : 2024-02-29 Seyedahmad Mehrishal, Jineon Kim, Jae-Joon Song, Atsushi Sainoki
Identifying rock mass discontinuities and their plane orientation are crucial factors when determining rock mass characteristics. Rock mass discontinuity mapping is fundamentally dependent on joint trace surveying since traces of them are most often the only visible features in rock outcrops. Traditional methods for joint trace surveying using tape and a geological compass are challenging, time-consuming
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Variations of entries and bolting technologies, a case study based on a field monitoring of a longwall face Eng. Geol. (IF 7.4) Pub Date : 2024-02-28 Feng Guo, Nong Zhang, Xiaowei Feng, Zhengzheng Xie, Changliang Han, Yongle Li, Qinghua Chen, Guoli Ding
Roadways adjacent to a mining face are crucial for ensuring safe production, transportation, and the security of personnel. Nevertheless, the anchoring mechanisms and the integrity of the surrounding rock structures of these roadways have frequently been underestimated in mining endeavors. This study, using Xin'an Coal Mine in Gansu as an example, conducted an in-situ analysis of four anchoring methods
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Probabilistic analysis of a sustainable landfill cover considering stress-dependent water retention model and copula-based random fields Eng. Geol. (IF 7.4) Pub Date : 2024-02-27 Charles W.W. Ng, Chuanxiang Qu, Haowen Guo, Rui Chen, Qiang Xue
Material properties, crucial design parameters in landfill cover systems, can exhibit spatial variability due to non-uniform particle size and uneven compaction, affecting cover performance. Additionally, cover thickness, another key design parameter, can induce stress variation and influence soil-water retention capability. Previous designs always ignored these uncertainties and stress effects, potentially
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Formation mechanism of a disaster chain in Loess Plateau: A case study of the Pucheng County disaster chain on August 10, 2023, in Shaanxi Province, China Eng. Geol. (IF 7.4) Pub Date : 2024-02-27 Xingang Wang, Sheng Hu, Baoqin Lian, Jiading Wang, Hongbin Zhan, Daozheng Wang, Kai Liu, Li Luo, Chaoying Gu
Under the heavy rainfall risk due to global warming, a new trend has emerged in geological disasters of loess, which have often evolved into a chain form of disaster chain of loess (DCL) in recent years. The DCL is characterized by multiple, hidden, catastrophic, and complex characteristics that seriously affect the construction and operation of large-scale infrastructure on the Loess Plateau. To understand
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An improved characterization model of liquefaction resistance by shear wave velocity for binary mixtures with consideration of coarse content Eng. Geol. (IF 7.4) Pub Date : 2024-02-25 Peng Xia, Yan-Guo Zhou, Yun-Min Chen
This paper aims to develop an improved - characterization model for soil liquefaction evaluation for binary mixtures via a series of DEM simulations of drained monotonic tests, undrained cyclic tests and shear wave velocity measurements. The contributions of different contact types to the mean effective stress of binary mixtures depend mainly on the coarse content and to a negligible extent on the
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Corrigendum to “Source area morphometry and high depletion rate of landslides may indicate their coseismic origin” [Engineering Geology 330 (2024) 107424] Eng. Geol. (IF 7.4) Pub Date : 2024-02-24 Ivo Baroň, Jan Jelének, Jan Klimeš, Jia-Jyun Dong, Rostislav Melichar, Martin Šutjak, Yichin Chen, Che-Ming Yang, En-Lun Zhang, Joanna Méndez, Chia-Han Tseng, Filip Hartvich, Jan Blahůt, Thanh-Tùng Nguyễn, Lenka Kociánová, František Bárta, Václav Dušek, Petr Kycl
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Influence of grain contents on the dynamic strength of rock-like materials Eng. Geol. (IF 7.4) Pub Date : 2024-02-20 Meng-Chia Weng, Hoang-Khanh Le, Hung-Hui Li, Ta-Chun Chen
This study performed a series of uniaxial compressive tests and SHPB tests to investigate the influence of grain content and loading rate on strength and failure mode of rock-like materials. Two grain packing arrangements with 40% and 60% grain contents by volume were used to reflect the compositions of rock. According to the test results, the simulation of discrete element method (DEM) was further
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The influence of isotropic loading and unloading on anisotropic evolution of saturated hydraulic conductivity of bentonite-sand mixtures in a cube triaxial permeameter Eng. Geol. (IF 7.4) Pub Date : 2024-02-20 Hamed Sadeghi, Mostafa Gholami, Pouya AliPanahi, Dongri Song
Anisotropic permeability of bentonite mixtures governs water flow regime in buffer materials such as landfill cover systems, cutoff walls, and high-level waste repositories. Because of its widespread application, a series of 48 permeability tests were conducted in this study on specimens prepared from bentonite-sand mixtures with three bentonite contents. The tests were run along both isotropic loading
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Numerical upscaling of anisotropic failure criteria in heterogeneous reservoirs Eng. Geol. (IF 7.4) Pub Date : 2024-02-19 Bo Zhang, Nathan Deisman, Rick Chalaturnyk, Jeff Boisvert
With advances in characterizing the reservoir heterogeneities and modeling the complex reservoir-geomechanical behavior using modern geological modeling software and simulators, the impact of geological uncertainties on reservoir-geomechanical responses has drawn increasing attention for an improved engineering design and decision makings in subsurface developments. Robust and efficient upscaling techniques
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Influence of surface wave impedance ratios on the dynamic response and damage characteristics of slopes based on shaking table tests Eng. Geol. (IF 7.4) Pub Date : 2024-02-19 Hongfeng Liu, Yonghong Luo, Yunsheng Wang, Wenpo Wang, Xin Zhu, Junyi Li, Zan Zhou, Junjie Jing
Weathered slopes are often severely damaged during earthquakes, posing challenges to the study of their dynamic response and damage characteristics. In this study, we conducted physical modelling tests using the wave impedance ratio to investigate the influence of weathering layers on slope dynamics through shaking table tests. Model A utilized unweathered rock as a reference, while models B, C, and
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Detection of landslide groundwater based on magnetic resonance sounding given complex topography Eng. Geol. (IF 7.4) Pub Date : 2024-02-19 Fan Li, Kaitian Li, Aijun Su, Huiming Tang
Effective detection of groundwater in landslide areas is crucial for landslide monitoring. The magnetic resonance sounding (MRS) method is a geophysical technique that can directly detect groundwater. However, its application in landslide groundwater monitoring is often hindered by the complex topography of landslides. This paper presents an MRS framework that accounts for the impact of landslide topography
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Assessing shallow slope stability using electrical conductivity data and soil hydraulic characteristics Eng. Geol. (IF 7.4) Pub Date : 2024-02-19 Ya-Sin Yang, Hsin-Fu Yeh, Chien-Chung Ke, Lun-Wei Wei
In-situ slope monitoring techniques can be used to observe hydrological and mechanical processes in soil, identify the development of unstable slope areas, and provide information for slope stability models. In recent years, the combination of hydrogeological surveys and geophysical monitoring methods has enabled us to obtain the geotechnical and hydrological propertied associated with landslides.
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Probabilistic analysis of one-dimensional large-deformation consolidation considering permeability relationship's variability Eng. Geol. (IF 7.4) Pub Date : 2024-02-19 Duohui Li, Shunchao Qi, Yuntao Wang, Jiawen Zhou, Paul Simms, Qiang Yao
The large-deformation consolidation theory is fundamental for many applications involving the poromechanical couplings but faces great challenges in making accurate predictions in practices due to significant uncertainties of material permeability, . The permeability could take random values at constant void ratio, , due to random microscopic flow channels, moreover, its statistics vary with evolving
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LiteTransNet: An interpretable approach for landslide displacement prediction using transformer model with attention mechanism Eng. Geol. (IF 7.4) Pub Date : 2024-02-18 Qi Ge, Jin Li, Xiaohong Wang, Yiyan Deng, Keying Zhang, Hongyue Sun
Accurate landslide displacement prediction is crucial for effective early warning systems to mitigate hazards. The importance of historical information varies with time during prediction due to the underlying landslide deformation mechanism. Despite advances in dynamic machine learning models like Long Short-Term Memory (LSTM) and Gated Recurrent Unit (GRU), they struggle to fully capture and interpret
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1-g physical modeling in engineering geology and its application of pile-reinforced reservoir landslides Eng. Geol. (IF 7.4) Pub Date : 2024-02-17 Xinli Hu, Dongzi Liu, Wenbo Zheng, Dwayne Tannant, Chao Kang
Reservoir operations can induce massive landslides due to the regional hydraulic effects, where pile reinforcement is a widely used stabilization method. The physical modeling is one of the most common methods used to study reservoir landslides and their pile reinforcement, while some limitations have been presented in the method, slowed its development down, and adverse to novel results. This paper
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Failure kinematics and mechanisms of the 2019 Yahuokou flow-like landslide along the Pingding-Huama fault in Zhouqu segment Eng. Geol. (IF 7.4) Pub Date : 2024-02-16 Long Yang, Ming Zhang, Lichao Wang, Tao Liu, Pengqing Shi, Baoguo Yin, Wu Youyin, Jiao Weizhi
Many large-scale landslides have occurred along the active Pingding-Huama fault in Zhouqu segment, Gansu, China. To better understand the failure mechanisms of these landslides, we use the Yahuokou landslide as a detailed case study. Field investigation was conducted to retrace the kinematics of the landslide and corresponding timeline of triggering mechanics. Dynamic triaxial tests were conducted
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A high resolution detection approach combining probe drilling and horizontal cross-hole resistivity tomography to interpret water conducting channels ahead of the tunnel: A case study in Yunnan, China Eng. Geol. (IF 7.4) Pub Date : 2024-02-16 Lichao Nie, Shixun Jia, Zhi-Qiang Li, Qian Guo, Tingyi Wang, Yuchao Du, Shimin Li, Pengyu Jing
The geological conditions in Yunnan Province, China, are intricate, and numerous challenges are anticipated during tunnel excavation. The goal of this study was to develop a high resolution detection approach combining probe drilling and horizontal cross-hole resistivity tomography to interpret water conducting channels ahead of the tunnel. A complex section of the Xianglu Mountain tunnel was taken
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Development of a modified hypoplastic model for calcareous sand considering particle crushing Eng. Geol. (IF 7.4) Pub Date : 2024-02-15 Yongqiang Cui, Huanyu Su, Ning Jia, Teng Wang
In the field of ocean engineering, calcareous sand is frequently employed. However, particle breakage can significantly reduce its strength and dilatancy while increasing its compressibility, leading to potential safety and stability issues for foundations. Traditional constitutive models have limitations in accurately describing the mechanical behavior of calcareous sand. To address this issue, a
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Similarity quantification of soil spatial variability between two cross-sections using auto-correlation functions Eng. Geol. (IF 7.4) Pub Date : 2024-02-13 Yue Hu, Yu Wang, Kok-Kwang Phoon, Michael Beer
In geotechnical engineering, an appreciation of local geological conditions from similar sites is beneficial and can support informed decision-making during site characterization. This practice is known as “site recognition”, which necessitates a rational quantification of site similarity. This paper proposes a data-driven method to quantify the similarity between two cross-sections based on the spatial
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Advanced integration of ensemble learning and MT-InSAR for enhanced slow-moving landslide susceptibility zoning Eng. Geol. (IF 7.4) Pub Date : 2024-02-09 Taorui Zeng, Liyang Wu, Yuichi S. Hayakawa, Kunlong Yin, Lei Gui, Bijing Jin, Zizheng Guo, Dario Peduto
The Three Gorges Dam's operation has been recognized as a contributing factor to slope instability and the reactivation of pre-existing deep-seated landslides in the region. Regular human activities, including the regulation of the Yangtze River water level, urban development, and infrastructure expansion, combined with heavy rainfall, dynamically alter the state of existing slow-moving landslides
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Deformation and failure characteristic of open-pit slope subjected to combined effects of mining blasting and rainfall infiltration Eng. Geol. (IF 7.4) Pub Date : 2024-02-08 Yu Lu, Changyu Jin, Qiang Wang, Guang Li, Tao Han
Accelerated deformation and slope instability commonly occur within open-pit mines, indicating the action of potential triggering events such as mining disturbances or rainfall. However, limited studies have been conducted on the deformation behavior of open-pit slopes subjected to the combined effects of mining blasting and rainfall infiltration. This study proposes an integrated approach that combines
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Cracking formation and evolution in surrounding rock of a deep fractured rock mass roadway: A study of the 790-m level segment engineering at the Jinchuan Mine, China Eng. Geol. (IF 7.4) Pub Date : 2024-02-07 Xiaojun Yu, Yaping Yang, Xifan Li, Huanzhen Luo, Yushan Wang, Xizhi Zhang, Yongyuan Kou, Hongye Li, Yangyi Zhou
Deep roadways within fractured rock mass present substantial challenges for mining and construction due to the risk of large deformations. This study focuses on investigating the formation and evolution of cracking zones in the surrounding rock, specifically analyzing the 790-m level segment within the Jinchuan Mine No. 2 Mining area. Our comprehensive approach integrates field investigations, laboratory
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Experimental research into the dynamic damage characteristics and failure behavior of rock subjected to incremental repeated impact loads Eng. Geol. (IF 7.4) Pub Date : 2024-02-06 Li Zhang, Enyuan Wang, Yubing Liu, Weitao Yue, Dong Chen
The damage to rocks caused by frequent disturbance loads is a major issue in rock engineering. Understanding the failure behaviors and establishing the dynamic energy-damage model of rock under constant and incremental repeated impact loads are key to the structural safety and stability design of rock mass engineering works. In this work, the split Hopkinson pressure bar (SHPB) system and an ultrasonic
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Drying of silty soil treated with superabsorbent hydrogels: Retention behaviour and cracking Eng. Geol. (IF 7.4) Pub Date : 2024-02-06 Joaquín Liaudat, Stefano Muraro
Desiccation cracks in soils pose risks to the serviceability and safety of geotechnical infrastructure worldwide. This paper aims to investigate the potential of superabsorbent hydrogels (SAH) as innovative soil amendment to mitigate soil drying effects and cracking. Laboratory tests were conducted on an initially saturated silty soil treated with different types and dosages of SAH. Desiccation cracking
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Numerical simulation on potential landslide–induced wave hazards by a novel hybrid method Eng. Geol. (IF 7.4) Pub Date : 2024-02-04 Hao Wu, Anchi Shi, Weida Ni, Liuyuan Zhao, Zhichao Cheng, Qiming Zhong
Landslide-induced waves pose significant risks to human lives, property, and infrastructure. The multifaceted nature of landslide movements combined with solid-fluid interactions makes hazard assessment of these waves particularly challenging. This study proposes a novel hybrid numerical method for simulating potential landslide–induced wave. The Material Point Method (MPM) is employed to evaluate
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Preface for “Discrete fracture networks in geo-hydrology: advancements and practical applications” Eng. Geol. (IF 7.4) Pub Date : 2024-02-03 William S. Dershowitz, Corrado Fidelibus, Delphine Roubinet, Chaoshui Xu
Abstract not available
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Evolution of dilation with time based on the molecular microkinetics of red-bed argillaceous sandstone in Hubei Province, China Eng. Geol. (IF 7.4) Pub Date : 2024-02-03 Guodong Zhang, Sixiang Ling, Xiyong Wu, Zhuowu Xie, Zixing Liao, Chengjun Xiao
Red-bed argillaceous sandstone is a typical soft rock with swelling characteristics and is prone to cause problems in engineering geology such as dilation deformation when used in high-speed railway subgrades or uneven settlement when used in foundations. This potential impact emphasizes the importance of understanding the long-term dilation and contraction of red-bed soft rocks. To thoroughly study
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Energy-based liquefaction assessment of partially and fully saturated clayey sands Eng. Geol. (IF 7.4) Pub Date : 2024-02-03 Pedram Fardad Amini, Jun Yang
Soil deposits containing some amounts of plastic fines (i.e., clay) with different saturation conditions can behave differently under seismic loading, which needs to be considered properly in the design practice. The energy-based method (EBM) has been consistently employed as an alternative means to evaluate the liquefaction resistance of soils. Therefore, an experimental study was undertaken to characterize
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Source area morphometry and high depletion rate of landslides may indicate their coseismic origin Eng. Geol. (IF 7.4) Pub Date : 2024-01-30 Ivo Baroň, Jan Jelének, Jan Klimeš, Jia-Jyun Dong, Rostislav Melichar, Martin Šutjak, Yichin Chen, Che-Ming Yang, En-Lun Zhang, Joanna Méndez, Chia-Han Tseng, Filip Hartvich, Jan Blahůt, Thanh-Tùng Nguyễn, Lenka Kociánová, František Bárta, Václav Dušek, Petr Kycl
Ancient coseismic landslides indicate prehistoric earthquakes and may also be a measure of their intensity. Their identification in the landscape remains, however, challenging. We used field geologic observations of source areas of recent rainfall-induced and earthquake-induced landslides to define a morphometric index that can distinguish between these two types of triggers. Morphometries of 129 landslides
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The transient electromagnetic (TEM) method reveals the role of tectonic faults in seawater intrusion at Zhoushan islands (Hangzhou Bay, China) Eng. Geol. (IF 7.4) Pub Date : 2024-02-02 Zhongmin Zhu, Zhigang Shan, Yonghao Pang, Wei Wang, Mei Chen, Guangchang Li, Huaifeng Sun, André Revil
Seawater intrusion into onshore aquifers represents a significant environmental threat worldwide especially in this new era of climate change and sea water rise. This is the case at the Zhoushan Islands located in Hangzhou Bay (China). Precise monitoring of the position of the boundary between freshwater and saltwater is of utmost importance for water resource management especially in fractured bedrock
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Characteristics of the impact pressure of an outburst debris flow: Insights from experimental flume tests Eng. Geol. (IF 7.4) Pub Date : 2024-02-01 Yunpeng Yang, Guan Chen, Xingmin Meng, Yan Chong, Wei Shi, Shiqiang Bian, Jiacheng Jin, Dongxia Yue
Debris flows generated by landslide dam failures are highly destructive and can result in rapid, large-scale landscape changes. Understanding the formation and impact dynamics of an outburst debris flow is essential for effective hazard mitigation. In this study, we conducted a series of experiments to investigate the flow dynamics and the impact against an obstacle of outburst debris flows by measuring
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X-ray CT-based interpretation of microbial-induced carbonate precipitation and local hydraulic behaviors Eng. Geol. (IF 7.4) Pub Date : 2024-01-26 Eomzi Yang, Seunghun Baek, Tae-Hyuk Kwon, Tae Sup Yun
Microbially induced carbonate precipitation (MICP) has been extensively studied at both lab and field scales for its functional applications, such as the shear strength enhancement or the hydraulic conductivity reduction for geological engineering. However, investigating the pore-scale interaction between calcite formation and hydraulic properties has been a challenge. In this study, we proposed an
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Investigating the impacts of reinforcement range and grouting timing on grouting reinforcement effectiveness for tunnels in fault rupture zones using a numerical manifold method Eng. Geol. (IF 7.4) Pub Date : 2024-01-28 Xiangyu Xu, Zhijun Wu, Lei Weng, Zhaofei Chu, Quansheng Liu, Zhiyang Wang
In this study, an enhanced numerical manifold method (NMM) simulator is developed to determine the combined impacts of reinforcement range and grouting timing on the effectiveness of grouting reinforcement for preventing the large deformation geo-hazard during the tunnel excavation through a fault rupture zone. To accomplish this objective, the limitations of the current two-dimensional simulation
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A quantitative analysis method for ecological-health risks caused by rainfall-induced soil erosion at the Laronde Mine Eng. Geol. (IF 7.4) Pub Date : 2024-01-19 Yuxuan Xue, Fereshteh Sattari, Lianne Lefsrud
Understanding the migration and dispersion of potentially toxic elements (PTEs) from soil erosion is integral to managing mine site risks. Modeling PTEs distribution in this mass movement is a significant challenge. This research quantitatively analyzed the ecological-health risks associated with rainfall-induced soil erosion (debris flow) at the LaRonde Mine's tailing pile (Quebec, Canada). The present
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Conditional random field-based stochastic analysis of unsaturated slope stability combining Hoffman method and Bayesian updating Eng. Geol. (IF 7.4) Pub Date : 2024-01-20 Xin Gu, Wengang Zhang, Qiang Ou, Xing Zhu, Changbing Qin
This paper proposes a new framework for discretizing the conditional random fields that combines the Hoffman method and Bayesian updating, where multiple types of geotechnical data can be utilized, such as the field monitoring data and the site investigation geological borehole data. The feasibility of the proposed method is demonstrated using a rainfall-induced slope example in spatially varying soils
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Experimental and numerical study on the breaching mechanisms of landslide dams with non-uniform structures Eng. Geol. (IF 7.4) Pub Date : 2024-01-23 Xianrui Hu, Xiaoli Fu, Ming Peng, Gongding Zhang, Zhenming Shi, Yan Zhu, Yuchun Li
Landslide dams often exhibit non-uniform structures due to the rapid and dynamic accumulation of various types of landslide materials. These variations in dam composition significantly impact breach progression, causing significant errors in current model tests and numerical simulations with uniform structure assumptions This adversely affects peak flow predictions and decisions related to risk prevention
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Studies on the performance of water retention type tailings dams subjected to filling and inertial loading in a geotechnical centrifuge Eng. Geol. (IF 7.4) Pub Date : 2024-01-20 Pankaj Kumar, B.V.S. Viswanadham
The past decade has witnessed the failure of numerous tailing storage facilities and earthen dams. The most common factors causing failure include seepage and slope instability, apart from seismic activities. In the present study, a series of centrifuge model tests have been conducted to study the performance of water retention type (WRT) tailings dams impounded with fine tailings material (and water)
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Quantitative estimation method for the excavation-induced weakening effect of rock mass parameters in deep tunnels Eng. Geol. (IF 7.4) Pub Date : 2024-01-19 Jinhao Dai, Fengqiang Gong, Zhichao He, Lei Xu
The excavation-induced weakening effect of rock mass parameters is detrimental to the stability of deep tunnels. This study presents a quantification method for the weakening effect of rock mass parameters. In this method, the weakening factor is introduced as a quantitative index of the weakening effect of rock mass parameters, which can be calculated by the acoustic P-wave velocity measured in the
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A new brittleness index based on crack characteristic stress and its engineering applications Eng. Geol. (IF 7.4) Pub Date : 2024-01-19 Tianzhi Yao, Li Qian, Zuguo Mo, Yunpeng Gao, Jianhai Zhang, Ru Zhang, Qijun Hu, Xianglin Xing
The inherent brittleness of the surrounding rock poses a threat to the safety of underground engineering construction. One of the most straightforward methods for quantifying the degree of rock brittleness is using a rock brittleness index. Over the past several decades, a dozen rock brittleness indices based on uniaxial and conventional triaxial tests have been proposed and used. However, these indices
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Reconstruction of a subsoil model for local seismic response evaluation through experimental and numerical methods: The case of the Wellington CBD, New Zealand Eng. Geol. (IF 7.4) Pub Date : 2024-01-19 Silvia Giallini, Pietro Sirianni, Alessandro Pagliaroli, Alberto Pizzi, Marco Mancini, Anna Kaiser, Sandra Bourguignon, Zane Bruce, Matthew Hill, Liam Wotherspoon, Massimiliano Moscatelli
Defining a reliable subsoil model is one of the most crucial points in the evaluation of the local seismic response, especially when the study area presents a complex geological setting. Performing a large number of investigations during and subsequently a seismic crisis (following a strong earthquake) is useful for collecting valuable data. By applying a multidisciplinary approach, these data can
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New proposal to assess the seismic stability of shallow underground cavities in soft intact rocks Eng. Geol. (IF 7.4) Pub Date : 2024-01-17 Stefania Fabozzi, Filomena de Silva, Paolo Tommasi, Emilio Bilotta, Massimiliano Moscatelli
The seismic stability assessment of anthropogenic cavities is a challenging issue for land and urban planning, particularly in areas of possible interaction with surface structures and infrastructures. The paper proposes a novel methodology for the preliminary assessment at urban scale of the safety level against roof collapse of underground cavities under seismic actions through seismic stability
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Influences of ink-bottle effect evolution on water retention hysteresis of unsaturated soils: An experimental investigation Eng. Geol. (IF 7.4) Pub Date : 2024-01-12 Ke Chen, Xuzhen He, Fayun Liang, Daichao Sheng
The ink-bottle effect, resulting from the non-uniformity of pore structure, plays a significant role in the hydraulic behaviour of soils. In this paper, a series of laboratory tests including standard mercury intrusion porosimetry (MIP), intrusion-extrusion cyclic MIP (IEC-MIP), and scanning electron microscopy (SEM) were conducted on two soils (a Nanyang expansive clay and a Kaolin mixture) to examine
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Occurrence of sand boils landside of a river dike during flooding: A geophysical perspective Eng. Geol. (IF 7.4) Pub Date : 2024-01-05 A. Ghorbani, A. Revil, S. Bonelli, S. Barde-Cabusson, L. Girolami, F. Nicoleau, P. Vaudelet
The study of internal erosion of earth dams, dikes, and levees is an essential ingredient to address their safety. Indeed, internal erosion is known to be a major cause of failure for dams and levees. Several sections of the Agly river dike (south-west France) are affected by the appearance of sand boils on the side of the protected zone. These phenomena generally occur without any significant erosion
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Geospatial liquefaction probability models based on sand boils occurred during the 2017 M5.5 Pohang, South Korea, earthquake Eng. Geol. (IF 7.4) Pub Date : 2024-01-08 Hwanwoo Seo, Han-Saem Kim, Laurie G. Baise, Byungmin Kim
The 2017 Pohang earthquake, triggered by an enhanced geothermal system, had a moment magnitude (M) of 5.5 and caused liquefaction in Pohang City, South Korea. Notably, approximately 600 sand boils were observed only in the soft Quaternary alluvial sediments. This contrasts with most historic liquefaction cases that occurred in earthquakes with M ≥ 6.0. In addition, ground and building settlements were
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Numerical investigation into effects of rheological properties on grout flow in rock fracture using Herschel-Bulkley model Eng. Geol. (IF 7.4) Pub Date : 2024-01-03 Hao Gao, Longbang Qing, Guowei Ma, Decheng Zhang, Chenglin Wei
Grouting is an essential technique for reducing the hydraulic conductivity and enhancing the strength of rock mass used in the Dongzhuang hydro-junction project. The rheological properties of grout are not to be disregarded during grouting. In this study, a numerical grouting model is established by combining a modified Herschel–Bulkley (HB) rheology model with the level set method. The effects of
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Landslide development model based on tree-ring data and quantification of the magnitude of landslide movements Eng. Geol. (IF 7.4) Pub Date : 2024-01-06 Karel Šilhán, Ivan Ružek
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Rockburst prediction and prevention in a deep-buried tunnel excavated by drilling and blasting: A case study Eng. Geol. (IF 7.4) Pub Date : 2024-01-06 Qi Zhang, Xiao-Ping Zhang, Quansheng Liu, Junbo Qiu, Jian Wu
Rockburst has become a main factor threatening the safe construction of deep-buried tunnels. To monitor microseismic (MS) event and comprehend evolution process of rockbursts, a MS monitoring system was established in a deep-buried tunnel excavated by drilling and blasting. The mechanisms of three typical rockburst cases were investigated through the analysis of the MS sequence and development process
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Geotechnical characterisation of coal spoil piles using high-resolution optical and multispectral data: A machine learning approach Eng. Geol. (IF 7.4) Pub Date : 2024-01-06 Sureka Thiruchittampalam, Bikram Pratap Banerjee, Nancy F. Glenn, Simit Raval
Geotechnical characterisation of spoil piles has traditionally relied on the expertise of field specialists, which can be both hazardous and time-consuming. Although unmanned aerial vehicles (UAV) show promise as a remote sensing tool in various applications; accurately segmenting and classifying very high-resolution remote sensing images of heterogeneous terrains, such as mining spoil piles with irregular
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Investigation of a large-scale waste dump failure at the Mae Moh mine in Thailand Eng. Geol. (IF 7.4) Pub Date : 2024-01-01 Menglim Hoy, Cong Bien Doan, Suksun Horpibulsuk, Apichat Suddeepong, Artit Udomchai, Apinun Buritatum, Apipat Chaiwan, Prajueb Doncommul, Arul Arulrajah
This research investigates the potential mechanisms and possible causes of a large-scale waste dump failure in the Mae Moh Lignite Mine, which is Thailand's largest open-pit coal mine. The large-scale failure of the waste dumpsite covered an area of approximately 1.56 km2 when the dump materials reached a height of 135 m from the original ground. The failure event involved the mobilization of a 70-Mm3
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Field and numerical investigation of soil hydro-thermal response to the climatic conditions in southern China considering soil heterogeneity Eng. Geol. (IF 7.4) Pub Date : 2024-01-01 Zhao-Jun Zeng, Chao-Sheng Tang, Qing Cheng, Ni An, Zhan-Ming Yang, Xu-Long Gong, Xiao-Ying Chen
It is essential to investigate soil hydro-thermal behavior to reduce the potential damage to geotechnical constructions caused by varying climatic conditions. In this work, an in-situ monitoring station was built on a clay slope with high groundwater table, situated in Yixing, China. Ten SMT-100 sensors were instrumented on the site to record the evolutions of soil temperature and volumetric water