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Advances in Marine Engineering: Geological Environment and Hazards—3rd Edition
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Advances in Marine Engineering: Geological Environment and Hazards—3rd Edition

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Geological Oceanography".

Deadline for manuscript submissions: 16 June 2025 | Viewed by 4427

Special Issue Editors

Dr. Xingsen Guo

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Guest Editor
Department of Civil, Environmental and Geomatic Engineering, University College London (UCL), London, UK
Interests: marine engineering geology and geotechnical engineering; marine geological hazards; computational fluid dynamics into turbidity currents and deep-sea mining plumes
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Xiaolei Liu

E-Mail Website
Guest Editor
Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering, College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
Interests: marine engineering geology; wave-seabed interactions; submarine sediment gravity flows; seafloor in situ test and observation
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Tingkai Nian

E-Mail Website
Guest Editor
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
Interests: marine geotechnics; marine geohazards; risk analysis, numerical and physical simulation; machine learning
Prof. Dr. Thorsten Stoesser

E-Mail Website
Guest Editor
Department of Civil, Environmental and Geomatic Engineering, University College London, London WC1E 6BT, UK
Interests: computational fluid dynamics; coastal hydraulics and environmental fluid mechanics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the continuous advancement of estuarine, coastal, offshore, deep-sea engineering construction (such as marine resource development, offshore wind power projects, and deep-sea mining engineering), and environmental protection efforts, research on geological and hydrodynamic environments and hazards has gradually deepened, leading to significant research advances. Consequently, since 2021, consecutive Special Issues have been organized by Dr. Xingsen Guo, Prof. Xiaolei Liu, Prof. Dr. Tingkai Nian, and Prof. Thorsten Stoesser to document these research advancements. The objective of this Special Issue is to collect research papers in the fields of hydrodynamics, geological environments, and hazards, including geological environments, geological hazards, engineering geology, hydrodynamics, fluid environments, and geotechnical engineering. This Special Issue invites contributions comprising in situ observations, laboratory tests, numerical simulations, theoretical analyses, and AI methodologies on hydrodynamics, geological environments, and hazards. Contributions may also include case studies, review articles, or short communications.

Dr. Xingsen Guo
Prof. Dr. Xiaolei Liu
Prof. Dr. Tingkai Nian
Prof. Dr. Thorsten Stoesser
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Marine Science and Engineering is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • geological environment
  • geological hazards
  • engineering geology
  • hydrodynamics
  • environmental fluid mechanics
  • geotechnical engineering
  • deep-sea mining engineering

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (5 papers)

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Research

15 pages, 17864 KiB  
Article
An LES Investigation of Flow Field Around the Cuboid Artificial Reef at Different Angles of Attack
by Jie Dai, Qianshun Xu, Yiqing Gong, Yang Lu, Xinbo Liu and Jingqiao Mao
J. Mar. Sci. Eng. 2025, 13(3), 463; https://doi.org/10.3390/jmse13030463 - 27 Feb 2025
Viewed by 214
Abstract
The placement of artificial reefs (ARs) significantly influences local hydrodynamics and nutrient transport, both of which are crucial for enhancing marine ecosystems and improving marine habitats. Large eddy simulations (LESs) are performed to study the flow field around a cuboid artificial reef (CAR) [...] Read more.
The placement of artificial reefs (ARs) significantly influences local hydrodynamics and nutrient transport, both of which are crucial for enhancing marine ecosystems and improving marine habitats. Large eddy simulations (LESs) are performed to study the flow field around a cuboid artificial reef (CAR) with three inflow angles (α = 0°, 45°, and 90°). The numerical method is successfully validated with experimental data, and a reasonable grid resolution is chosen. The results demonstrate that the case with an inflow angle of 45° exhibits superior flow field performance, including the largest recirculation bubble length and the maximum volumes for both the upwelling and wake regions. Stronger turbulence is also observed around the CAR at this inflow angle, attributed to the intensified shear layer. The instantaneous flow features torn horseshoe vortices and rollers shed from the shear layer, which further develop into hairpin vortices. Full article
(This article belongs to the Special Issue Advances in Marine Engineering: Geological Environment and Hazards—3rd Edition)
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19 pages, 7335 KiB  
Article
Mechanical Behavior of Marine Soft Soil with Different Water Contents Under Cyclic Loading
by Yajun Liu, Heng Zhang, Yindong Sun, Ke Wu and Wenbin Xiao
J. Mar. Sci. Eng. 2024, 12(12), 2307; https://doi.org/10.3390/jmse12122307 - 15 Dec 2024
Viewed by 693
Abstract
This study integrates macroscopic dynamic triaxial tests with microscopic discrete element simulations to comprehensively examine the dynamic deformation characteristics of marine soft soils under cyclic loading. Unlike previous research that typically focuses solely on experimental or numerical methods, this approach combines both techniques [...] Read more.
This study integrates macroscopic dynamic triaxial tests with microscopic discrete element simulations to comprehensively examine the dynamic deformation characteristics of marine soft soils under cyclic loading. Unlike previous research that typically focuses solely on experimental or numerical methods, this approach combines both techniques to enable a holistic analysis of soil behavior. The dynamic triaxial tests assessed macroscopic responses, including strain evolution and energy dissipation, under varying dynamic stress ratios, confining pressures, and water contents. Concurrently, discrete element simulations uncovered the microscopic mechanisms driving these behaviors, such as particle rearrangement, porosity variations, and shear zone development. The results show that (1) The strain range of marine soft soils increases significantly with higher dynamic stress ratios, confining pressures, and water contents; (2) Cumulative dynamic strain and particle displacement intensify at water contents of 50% and 55%. However, at a water content of 60%, the samples exhibit significant damage characterized by the formation of shear bands throughout the entire specimen; (3) As water content increases, energy dissipation in marine soft soils accelerates under lower confining pressures but increases more gradually under higher confining pressures. This behavior is attributed to enhanced particle packing and reduced pore space at elevated confining pressures. This integrated methodology not only enhances analytical capabilities but also provides valuable engineering insights into the dynamic response of marine soft soils. The findings offer essential guidance for the design and stabilization of marine soft soil infrastructure in coastal urban areas. Full article
(This article belongs to the Special Issue Advances in Marine Engineering: Geological Environment and Hazards—3rd Edition)
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14 pages, 6056 KiB  
Article
Centrifugal Test Study on the Vertical Uplift Capacity of Single-Cylinder Foundation in High-Sensitivity Marine Soil
by Mingzhe Wei, Yanghui Ye, Wei Zhao, Zehao Wang, Fuhao Ge and Tingkai Nian
J. Mar. Sci. Eng. 2024, 12(12), 2152; https://doi.org/10.3390/jmse12122152 - 25 Nov 2024
Viewed by 674
Abstract
Offshore wind power is a new type of clean energy with broad development prospects. Accurate analysis of the uplift capacity of offshore wind turbine foundations is a crucial prerequisite for ensuring the safe operation of wind turbines under complex hydrodynamic conditions. However, current [...] Read more.
Offshore wind power is a new type of clean energy with broad development prospects. Accurate analysis of the uplift capacity of offshore wind turbine foundations is a crucial prerequisite for ensuring the safe operation of wind turbines under complex hydrodynamic conditions. However, current research on the uplift capacity of suction caissons often neglects the high-sensitivity characteristics of marine soils. Therefore, this paper first employs the freeze–thaw cycling procedure to prepare high-sensitivity saturated clay. Subsequently, a single−tube foundation for wind turbines is constructed within a centrifuge through a penetration approach. Ten sets of centrifuge model tests with vertical cyclic pullout are conducted. Through comparative analysis, this study explores the pullout capacity and its variation patterns of suction caisson foundations in clay with different sensitivities under cyclic loading. This research indicates the following: (1) The preparation of high-sensitivity soil through the freeze−thaw procedure is reliable; (2) the uplift capacity of suction caissons in high−sensitivity soil rapidly decreases with increasing numbers of cyclic loads and then tends to stabilize. The cumulative displacement rate of suction caissons in high-sensitivity soil is fast, and the total number of pressure–pullout cycles required to reach non-cumulative displacement is significantly smaller than that in low-sensitivity soil; (3) the vertical cyclic loading times and stiffness evolution patterns of single-tube foundations, considering the influence of sensitivity, have been analyzed. It was found that the secant stiffness exhibits a logarithmic function relationship with both the number of cycles and sensitivity. The findings of this study provide assistance and support for the design of suction caissons in high-sensitivity soils. Full article
(This article belongs to the Special Issue Advances in Marine Engineering: Geological Environment and Hazards—3rd Edition)
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13 pages, 1175 KiB  
Article
Explainable Ensemble Learning Approaches for Predicting the Compression Index of Clays
by Qi Ge, Yijie Xia, Junwei Shu, Jin Li and Hongyue Sun
J. Mar. Sci. Eng. 2024, 12(10), 1701; https://doi.org/10.3390/jmse12101701 - 25 Sep 2024
Viewed by 923
Abstract
Accurate prediction of the compression index (cc) is essential for geotechnical infrastructure design, especially in clay-rich coastal regions. Traditional methods for determining cc are often time-consuming and inconsistent due to regional variability. This study presents an explainable ensemble learning [...] Read more.
Accurate prediction of the compression index (cc) is essential for geotechnical infrastructure design, especially in clay-rich coastal regions. Traditional methods for determining cc are often time-consuming and inconsistent due to regional variability. This study presents an explainable ensemble learning framework for predicting the cc of clays. Using a comprehensive dataset of 1080 global samples, four key geotechnical input variables—liquid limit (LL), plasticity index (PI), initial void ratio (e0), and natural water content w—were leveraged for accurate cc prediction. Missing data were addressed with K-Nearest Neighbors (KNN) imputation, effectively filling data gaps while preserving the dataset’s distribution characteristics. Ensemble learning techniques, including Random Forest (RF), Gradient Boosting Decision Trees (GBDT), Extreme Gradient Boosting (XGBoost), and a Stacking model, were applied. Among these, the Stacking model demonstrated the highest predictive performance with a Root Mean Squared Error (RMSE) of 0.061, a Mean Absolute Error (MAE) of 0.043, and a Coefficient of Determination (R2) value of 0.848 on the test set. Model interpretability was ensured through SHapley Additive exPlanations (SHAP), with e0 identified as the most influential predictor. The proposed framework significantly improves both prediction accuracy and interpretability, offering a valuable tool to enhance geotechnical design efficiency in coastal and clay-rich environments. Full article
(This article belongs to the Special Issue Advances in Marine Engineering: Geological Environment and Hazards—3rd Edition)
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13 pages, 5648 KiB  
Article
An Experimental Investigation of the Effect of Interfacial Waves on the Evolution of Sliding Zones in a Liquefied Seabed
by Xiaolei Liu, Xingyu Li, Hong Zhang, Yueying Wang, Qiang Zhang, Haoqiang Wei and Xingsen Guo
J. Mar. Sci. Eng. 2024, 12(8), 1355; https://doi.org/10.3390/jmse12081355 - 9 Aug 2024
Cited by 1 | Viewed by 1115
Abstract
The sliding process of liquefied submarine landslides is generally regarded as being induced by the coupling of excess pore pressure accumulation and shear stress under surface wave action. However, the significant role of interfacial waves formed over the seabed surface upon liquefaction has [...] Read more.
The sliding process of liquefied submarine landslides is generally regarded as being induced by the coupling of excess pore pressure accumulation and shear stress under surface wave action. However, the significant role of interfacial waves formed over the seabed surface upon liquefaction has been largely ignored. The characteristics of interfacial waves and their effect on the development of a seabed sliding zone are poorly understood. Wave flume experiments were conducted to observe the occurrence and evolution of the interfacial wave and sliding zone, combined with image analysis to extract interfacial wave parameters. The results show that the shear action of interfacial waves can cause progressive liquefaction sliding of the seabed and the formation of a sliding zone. The specific location and thickness of the sliding zone are always dynamically changing during the liquefaction development process and are consistent with the liquefaction depth. The wave height of liquefaction interfacial waves increases with liquefaction depth, and the maximum ratio of interfacial wave height to surface wave height can reach 0.175, corresponding to a maximum longitudinal width ratio of the sliding zone of 0.25. The continuously developing interfacial waves transfer the energy of surface waves to deeper areas, expanding the limit depth of sliding zone evolution. This study can provide theoretical guidance for the prevention and control of seabed instability and sliding disasters under extreme storm conditions. Full article
(This article belongs to the Special Issue Advances in Marine Engineering: Geological Environment and Hazards—3rd Edition)
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