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You searched for: Journal name Engineering geology Remove constraint Journal name: Engineering geology Publication year rev 7978-2022 Remove constraint Publication year rev: 7978-2022 Source 2022 v.296 Remove constraint Source: 2022 v.296
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1. A GPU-accelerated Efficient Simulation Tool (EST) for 2D variable-density mud/debris flows over non-uniform erodible beds

Author:
S. Martínez-Aranda; J. Murillo; P. García-Navarro
Source:
Engineering geology 2022 v.296 pp. 106462
ISSN:
0013-7952
Subject:
algorithms; cost effectiveness; equations; geophysics; landscapes; models; momentum; rheological properties; Brazil
Abstract:
... Mud/debris flows are among the most challenging gravity-driven flows in environmental and geophysical processes. Natural muddy slurries and debris are solid-laden fluids where the density of the mixture can be more than twice or three times the water density and, hence, the bulk solid phase can represent 40–80% of the flow column volume. Furthermore, these unsteady flows usually occur along steep ...
DOI:
10.1016/j.enggeo.2021.106462

2. An experimental investigation on the swelling behavior of compacted B75 bentonite

Author:
Haiquan Sun; Gianvito Scaringi; David Mašín; Jan Najser
Source:
Engineering geology 2022 v.296 pp. 106452
ISSN:
0013-7952
Subject:
bentonite; clay; models; permeability; radioactive waste; salinity; Czech Republic
Abstract:
... Compacted bentonite is often utilized as a buffer material between the canister containing radioactive waste and the host rock in deep geological repositories. Extremely low permeability and a potential to swell and develop large swelling pressures upon hydration are desirable characteristics for such material. This study focused on the B75 bentonite, a Ca-Mg-montmorillonite-rich clay selected as ...
DOI:
10.1016/j.enggeo.2021.106452

3. Automatic soil crack recognition under uneven illumination condition with the application of artificial intelligence

Author:
Jin-Jian Xu; Hao Zhang; Chao-Sheng Tang; Qing Cheng; Ben-gang Tian; Bo Liu; Bin Shi
Source:
Engineering geology 2022 v.296 pp. 106495
ISSN:
0013-7952
Subject:
artificial intelligence; climate change; computer vision; data collection; geology; lighting
Abstract:
... Drought-induced soil desiccation cracking has attracted great attention in various disciplines with the advent of global climate change. Accurately obtaining soil crack networks is essential to understand the cracking mechanism. Inspired by recent advances of artificial intelligence (AI) in computer vision, we propose a new automatic soil crack recognition method based a novel network architecture ...
DOI:
10.1016/j.enggeo.2021.106495

4. Desiccation-induced curling of mud layers: Field observations and experimental insights

Author:
Hao Zeng; Chao-Sheng Tang; Qing Cheng; Cheng Zhu; Zong-Ze Lin; Li-Yang Yin; Bin Shi
Source:
Engineering geology 2022 v.296 pp. 106458
ISSN:
0013-7952
Subject:
friction; geology; particle size; shrinkage; water content
Abstract:
... Desiccation-induced curling of mud layers on the earth surface is a ubiquitous natural phenomenon, as a result of mud-atmosphere interaction. Field observations reveal that the curling behaviors of muds were closely related to the overlying layer thickness and the basal layer condition. In order to interpret field observations, laboratory experiments were conducted on ten remolded mud samples with ...
DOI:
10.1016/j.enggeo.2021.106458

5. Field measurements, laboratory tests and empirical relations for investigating the solid-to-fluid transition of a rapid earthflow

Author:
M. Berti; S. Castellaro; A. Zuccarini
Source:
Engineering geology 2022 v.296 pp. 106486
ISSN:
0013-7952
Subject:
geophysics; landslides; uncertainty; water content; Italy; Mediterranean region
Abstract:
... Earthflows are widespread phenomena in the Mediterranean area. These landslides involve fine-grained soils and clay-bearing rocks, and despite their low speed are responsible for significant economic losses in vast areas. The dynamics of these landslides is still relatively obscure thus reducing our ability to forecast and mitigate their effects. In this study, we present a methodological approach ...
DOI:
10.1016/j.enggeo.2021.106486

6. In-situ properties of Poisson's ratio based on KiK-net seismic observations

Author:
Yu Miao; Hao Zhang; Hong-Jun He; Yang Shi
Source:
Engineering geology 2022 v.296 pp. 106463
ISSN:
0013-7952
Subject:
Poisson distribution; empirical models; geophysics; groundwater; laboratory experimentation
Abstract:
... Poisson's ratio has been considered as an important parameter for the analysis of a geotechnical structure under both static and dynamic loads by many researchers. However, most of the studies have been performed using laboratory test such as resonant column and bender element, or the field test without seismic data such as suspension logging, seismic cross-hole and seismic cone penetration, the s ...
DOI:
10.1016/j.enggeo.2021.106463

7. New data on the microporosity of bentonites

Author:
Mercedes Suárez; Adrián Lorenzo; Andrea García-Vicente; Juan Morales; Javier García-Rivas; Emilia García-Romero
Source:
Engineering geology 2022 v.296 pp. 106439
ISSN:
0013-7952
Subject:
adsorption; bentonite; comparative study; crystal structure; macropores; micropores; smectite; surface area; transmission electron microscopy
Abstract:
... This comparative study on a very wide group of samples shows that the crystal size and crystalline defects of smectites influence microporosity of bentonite considerably more than previously considered. The smectite crystals and surface properties, including microporosity and micropore volume, were studied using high resolution transmission electron microscopy and N₂ adsorption, respectively. The ...
DOI:
10.1016/j.enggeo.2021.106439

8. Suction-based model for predicting cyclic and transient volume changes in expansive clays using a material property function

Author:
Maki Ito; Shahid Azam; Wayne Clifton
Source:
Engineering geology 2022 v.296 pp. 106491
ISSN:
0013-7952
Subject:
equations; geology; hydraulic conductivity; meteorological data; models
Abstract:
... This research develops a framework for determining cyclic and transient volume changes in unsaturated expansive clays using suction-based modeling. A governing equation along with a coefficient of swell-shrink was developed with soil suction as the driving state variable. This soil property function was determined from laboratory tests using new sigmoidal formulations for the e-based water retenti ...
DOI:
10.1016/j.enggeo.2021.106491

9. Unique relation between pore water pressure generated at the first loading cycle and liquefaction resistance

Author:
Xue-Qian Ni; Zhao Zhang; Bin Ye; Sheng Zhang
Source:
Engineering geology 2022 v.296 pp. 106476
ISSN:
0013-7952
Subject:
Japan; anisotropy; earthquakes; fabrics; geophysics; liquefaction; sand; vibration
Abstract:
... Accurate evaluation of excess pore water pressure (EPWP) generated in earthquake vibration is a key important factor in seismic engineering against liquefaction. Most previous studies were focused on the relation between cyclic resistance and EPWP developed in the entire liquefaction process. Only a few researchers pointed out that the maximum EPWP ratio accumulated at the first loading cycle, rep ...
DOI:
10.1016/j.enggeo.2021.106476

10. When faults diverge – High resolution imaging of an intra-fault zone in an urban environment. A case study from the city of Tiberias, Israel

Author:
Michael Lazar; Uri Basson; Ram Ben-David; Judah Coddington
Source:
Engineering geology 2022 v.296 pp. 106454
ISSN:
0013-7952
Subject:
case studies; geophysics; surveys; urban areas; Israel
Abstract:
... The presence of active faults or potentially active faults in urban settings is of great concern to city planners and developers. The high value of property within cities means that it is not always possible to avoid construction in such areas. Thus, building codes exist in order to regulate where and how to build in the vicinity of such faults. The Israeli National Building Code defines a zone of ...
DOI:
10.1016/j.enggeo.2021.106454

11. AI-based rainfall prediction model for debris flows

Author:
Yan Zhao; Xingmin Meng; Tianjun Qi; Yajun Li; Guan Chen; Dongxia Yue; Feng Qing
Source:
Engineering geology 2022 v.296 pp. 106456
ISSN:
0013-7952
Subject:
algorithms; mass movement; meteorological data; models; prediction; probability; rain; risk reduction; time series analysis; watersheds; China
Abstract:
... Debris flow prediction based on rainfall monitoring is important for early warning and disaster risk reduction. Taking a typical debris flow catchment (with debris flows occurring on average 6 times per year and with a watershed area of 19.47 km²) in central China as an example, we used a machine learning approach (17 machine learning algorithms were tested) and a time series data processing algor ...
DOI:
10.1016/j.enggeo.2021.106456

12. Analysis of an excavation-induced landslide in stiff clay using the material point method

Author:
Antonello Troncone; Luigi Pugliese; Enrico Conte
Source:
Engineering geology 2022 v.296 pp. 106479
ISSN:
0013-7952
Subject:
clay; deformation; landslides; mathematical models; power plants; soil strength; Italy
Abstract:
... The results of an analysis concerning a landslide occurred in Calabria (Southern Italy) in 2014 are presented. This landslide was triggered by some excavations carried out at the slope toe to allow the construction of a power plant. Failure developed mainly within a thick layer of stiff clay that experienced a pronounced strain-softening behaviour during the laboratory tests. The landslide involve ...
DOI:
10.1016/j.enggeo.2021.106479

13. Analysis of dynamic properties and transitional failure of clay–sand mixture in fine-grained soil based on mineral composition

Author:
Yi Shan; Jie Cui; Haitao Wen; Shuman Yu; Yadong Li
Source:
Engineering geology 2022 v.296 pp. 106464
ISSN:
0013-7952
Subject:
clay; energy; fabrics; fine-textured soils; kaolinite; mineral content; plasticity; quartz; sand
Abstract:
... Reexamining the transitional failure with energy method is a new idea of studying the dynamic properties of fine-grained soil. In this paper, a series of undrained cyclic triaxial tests and low-vacuum environmental scanning electron microscopy were employed to study the dynamic properties of two types of clay–sand mixtures with a similar plasticity index at a fine-grained content of 70%. In terms ...
DOI:
10.1016/j.enggeo.2021.106464

14. Coupling long-term GNSS monitoring and numerical modelling of lateral spreading for hazard assessment purposes

Author:
Matteo Mantovani; Giulia Bossi; Alan P. Dykes; Alessandro Pasuto; Mauro Soldati; Stefano Devoto
Source:
Engineering geology 2022 v.296 pp. 106466
ISSN:
0013-7952
Subject:
brittleness; clay; coasts; data collection; deformation; hazard characterization; landslides; limestone; Malta; Mediterranean Sea
Abstract:
... Lateral spreading is a complex geomorphological process occurring through the interplay of different factors. Due to their low rates of displacement, lateral spreads in rock are much less investigated than other landslide types even though sometimes they can evolve into faster and more hazardous movements such as topples. The lack of long-term monitoring data means that the deformation mechanisms ...
DOI:
10.1016/j.enggeo.2021.106466

15. Creep of clayey soil induced by elevated pore-water pressure: Implication for forecasting the time of failure of rainfall-triggered landslides

Author:
Chengrui Chang; Gonghui Wang
Source:
Engineering geology 2022 v.296 pp. 106461
ISSN:
0013-7952
Subject:
clay soils; models; rain; shear stress
Abstract:
... Many models have been proposed to forecast the time of failure of landslides, among them the Voight model (Ω¨=AΩ̇α) has been widely used. Values for controlling parameters of α and A, defined by accelerating movement, are representative of kinematic behavior prior to material failure. Nevertheless, due to the unknowns in the key parameters (α and A), failure-time forecast using this model remains ...
DOI:
10.1016/j.enggeo.2021.106461

16. Effect of root orientation on the strength characteristics of loess in drained and undrained triaxial tests

Author:
Jiang Yuan-jun; Mehtab Alam; Su Li-Jun; Muhammad Umar; Shamsher Sadiq; Li Jia Jia; Mahfuzur Rahman
Source:
Engineering geology 2022 v.296 pp. 106459
ISSN:
0013-7952
Subject:
Cunninghamia; cohesion; forests; friction; loess; loess soils; models; shear strength; China
Abstract:
... Ecological engineering measures are gaining popularity in the control of mountain hazards, particularly in shallow landslides, in which plant roots improve the shear strength of shallow soil. To measure such improvement, a series of drained and undrained triaxial tests were performed to investigate the role of Cunninghamia R. Br roots in loess soil mechanical behavior collected from Longchi Forest ...
DOI:
10.1016/j.enggeo.2021.106459

17. Factors controlling the spatial distribution of coseismic landslides triggered by the Mw 6.1 Ludian earthquake in China

Author:
Yu Zou; Shengwen Qi; Songfeng Guo; Bowen Zheng; Zhifa Zhan; Naiwu He; Xiaolin Huang; Xiaokun Hou; Haiyang Liu
Source:
Engineering geology 2022 v.296 pp. 106477
ISSN:
0013-7952
Subject:
Weibull statistics; cumulative distribution; databases; digital elevation models; earthquakes; geographic information systems; image interpretation; landslides; lithology; tectonics; topography; China
Abstract:
... Understanding the spatial distribution regularity of coseismic landslides is important for mitigation in future earthquakes. Unveiling the controlling factors of the distribution of coseismic landslides is a long-standing unsolved problem. On 3 August 2014, a Mw 6.1 earthquake occurred in Ludian County, Yunnan Province, China, and resulted in a great number of landslides and substantial losses. Th ...
DOI:
10.1016/j.enggeo.2021.106477

18. Improved technical guide from physical model tests for TDR landslide monitoring

Author:
Chih-Chung Chung; Chih-Ping Lin; Yin Jeh Ngui; Wen-Chin Lin; Chun-Shen Yang
Source:
Engineering geology 2022 v.296 pp. 106417
ISSN:
0013-7952
Subject:
deformation; landslides; models; soil types
Abstract:
... Time-domain reflectometry (TDR) can help observe the initiation and evolution of localized shear planes in both rock and soil slopes, and has temporal and spatial resolutions suitable for landslide monitoring. An improved and standardized technical guide for TDR cable installation and data interpretation is needed to utilize it better. TDR technique involves sending an electromagnetic pulse into a ...
DOI:
10.1016/j.enggeo.2021.106417

19. Influence of permeability on the stability of dual-structure landslide with different deposit-bedding interface morphology: The case of the three Gorges Reservoir area, China

Author:
Shi-lin Luo; Da Huang; Jian-bing Peng; Roberto Tomás
Source:
Engineering geology 2022 v.296 pp. 106480
ISSN:
0013-7952
Subject:
databases; landslides; models; permeability; statistical analysis; China
Abstract:
... The construction of the Three Gorges Reservoir (TGR) has considerably increased landslide hazard due to the 30-m annual fluctuating reservoir water level. In this study, the influence of permeability on the stability of dual-structure landslide with different deposit-bedding interface (DBI) morphology were comprehensively investigated. A landslide database including 560 recorded dual-structure lan ...
DOI:
10.1016/j.enggeo.2021.106480

20. Influence of pore fluid-soil structure interactions on compacted lime-treated silty soil

Author:
Geetanjali Das; Andry Razakamanantsoa; Gontran Herrier; Dimitri Deneele
Source:
Engineering geology 2022 v.296 pp. 106496
ISSN:
0013-7952
Subject:
calcium; deformation; geology; macropores; silty soils
Abstract:
... The effects on hydromechanical performance due to chemical interactions between pore solution and soil components in lime-treated soil are investigated. Static- and kneading-compacted soils are percolated by demineralized water (DW) and a low-ionic strength solution. Kneading action causes aggregate deformation, thus consequently reducing macropores of diameter 10⁵ Å. This increases the hydraulic ...
DOI:
10.1016/j.enggeo.2021.106496