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Marine Geotechnical Applications in Marine Structures
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Marine Geotechnical Applications in Marine Structures

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

Deadline for manuscript submissions: closed (31 March 2026) | Viewed by 6802

Special Issue Editors

Dr. Sung-ha Baek

E-Mail Website
Guest Editor
School of Civil and Environmental Engineering, Hankyong National University, Anseong, Republic of Korea
Interests: soil–machine interaction; soil–structure interaction; soft ground consolidation; intelligent compaction; digital image analysis
Dr. Jaehyun Kim

E-Mail Website
Guest Editor
Department of Civil Engineering, Kangwon National University, Chuncheon, Republic of Korea
Interests: offshore foundation; physical modelling; soil properties; centrifuge modelling; renewable energy; site investigation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the increasing demand for marine structures such as wind turbines, oil and gas platforms and submarine tunnels, the field of marine geotechnics has gained significant attention. The geotechnical properties of seafloor soils, which are continuously exposed to seawater, are quite different from conventional terrestrial soils and exhibit different physical properties. These differences have important implications for the design and construction of marine geotechnical structures.

In this Special Issue, we present research that investigates the behaviour of marine geotechnical structures and evaluates the properties of seafloor soils through site investigations to provide a better understanding of the practical challenges in this field. We hope that this Special Issue will provide new insights into the complexities of marine geotechnical engineering and help to fill existing research gaps.

We welcome submissions on the topic of ‘Marine Geotechnical Applications in Marine Structures’. Areas of interest include, but are not limited to, the physical and numerical modelling of soil–structure interactions, geotechnical properties of the seafloor and site investigations for the design of marine structures.

Dr. Sung-ha Baek
Dr. Jaehyun Kim
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 250 words) can be sent to the Editorial Office for assessment.

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 semimonthly 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

  • marine geotechnical engineering
  • soil–structure interaction
  • physical modelling
  • numerical modelling
  • marine structure design
  • site investigation
  • geotechnical property
  • coastal engineering
  • marine geophysics

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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

17 pages, 1597 KB  
Article
Interpretation of the Preconsolidation Stress in Soft Clay Using the One-Dimensional Consolidation Test
by Dae-Jin Gwak, Kwangpil Park, Bum-Hee Jo and Sung-Ha Baek
J. Mar. Sci. Eng. 2026, 14(8), 740; https://doi.org/10.3390/jmse14080740 - 17 Apr 2026
Viewed by 447
Abstract
This study explores interpretation methods for determining the preconsolidation stress from one-dimensional consolidation test results. Twelve reconstituted clay specimens with targeted preconsolidation stresses of 60 and 120 kPa were prepared using commercial kaolinite and marine clays collected from coastal regions of South Korea. [...] Read more.
This study explores interpretation methods for determining the preconsolidation stress from one-dimensional consolidation test results. Twelve reconstituted clay specimens with targeted preconsolidation stresses of 60 and 120 kPa were prepared using commercial kaolinite and marine clays collected from coastal regions of South Korea. Five representative interpretation methods were applied, and the influence of maximum applied stress levels of 320, 640, and 1280 kPa was evaluated. The results indicate that the estimated preconsolidation stress varies considerably depending on both the interpretation method and the maximum applied stress, particularly for rounded compression curves with gradually changing virgin compression slopes. To address these limitations, a new interpretation approach is proposed. The method utilizes the rebound slope obtained from an unload–reload cycle and defines the virgin compression line through linear regression without identifying the recompression–virgin compression boundary. The proposed method demonstrated reduced sensitivity to the maximum applied stress and provided more reproducible estimates for rounded compression curves, although further validation using natural clays considering sample disturbance effects is required. Full article
(This article belongs to the Special Issue Marine Geotechnical Applications in Marine Structures)
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21 pages, 8652 KB  
Article
Development of New Jack-Up Substructure Supporting Offshore Wind Turbines in Multi-Layered Soils: Geotechnical Aspects
by Min Jy Lee and Yun Wook Choo
J. Mar. Sci. Eng. 2025, 13(11), 2060; https://doi.org/10.3390/jmse13112060 - 28 Oct 2025
Viewed by 965
Abstract
Few studies have addressed jack-up substructures with spudcans for offshore wind turbines targeting multi-layer seabed conditions, which are frequently found in the Korean seabed. This study analyzed existing guidelines to establish geotechnical design procedures for a newly proposed jack-up substructure supported by tubular [...] Read more.
Few studies have addressed jack-up substructures with spudcans for offshore wind turbines targeting multi-layer seabed conditions, which are frequently found in the Korean seabed. This study analyzed existing guidelines to establish geotechnical design procedures for a newly proposed jack-up substructure supported by tubular legs with spudcans, as well as to present design cases for a target site. This jack-up spudcan was designed for seabed conditions representative of the Korean southwestern offshore seabed, consisting of a sand–clay–sand layer. Analytical procedures from ISO and InSafeJIP guidelines were adopted to estimate the vertical bearing capacity of the spudcan. The yield envelope was determined based on this estimation, and the spudcan size was selected using structural reaction forces. Predictions from theoretical equations were compared with results from centrifuge tests for verification and discussion. Theoretical vertical capacities according to ISO match well with centrifuge results in sand-over-clay layers, while InSafeJIP shows a similar trend in intermediate clay layers. For clay-over-sand layers, only the vertical capacity formula for a single-sand layer case is available in the guidelines, which tends to overestimate the actual capacity for the underlying sand. However, by applying appropriately selected strength reduction factors, the actual foundation behavior can be reasonably predicted for design, but it is still overestimated, requiring further study. Full article
(This article belongs to the Special Issue Marine Geotechnical Applications in Marine Structures)
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22 pages, 7049 KB  
Article
Development of a UAV LiDAR-Based Framework for Consolidation Settlement Monitoring Through Spatial Analysis
by Seok-Jun Ko, Seongho Hong and Tae-Young Kwak
J. Mar. Sci. Eng. 2025, 13(6), 1106; https://doi.org/10.3390/jmse13061106 - 31 May 2025
Cited by 3 | Viewed by 1611
Abstract
Construction sites with deep soft deposits usually experience significant consolidation settlement that can compromise structural integrity if not properly monitored. Conventional methods, such as settlement plates, are limited by high costs and sparse spatial coverage, which leaves areas unmonitored and vulnerable to unexpected [...] Read more.
Construction sites with deep soft deposits usually experience significant consolidation settlement that can compromise structural integrity if not properly monitored. Conventional methods, such as settlement plates, are limited by high costs and sparse spatial coverage, which leaves areas unmonitored and vulnerable to unexpected settlement. Therefore, this study develops an integrated UAV LiDAR monitoring framework that optimizes data preprocessing and introduces a novel timeseries settlement correction and interpolation technique for staged surcharge loading. Using UAV LiDAR data acquired at biweekly intervals from May 2021 to March 2022 at Busan Newport, high-quality digital elevation models were generated through optimal preprocessing. We are the first to evaluate the spatial representativeness of consolidation settlement at multiple section sizes (10 m × 10 m, 50 m × 50 m, and 100 m × 100 m) using high-resolution LiDAR, revealing that larger section sizes produce greater spatial variability and prediction error. Moreover, we demonstrate that at least seven biweekly UAV LiDAR surveys are essential to reliably capture early-stage settlement behaviors, providing a practical guideline for monitoring campaigns. These findings show that the proposed UAV LiDAR framework can deliver valuable insights for managing settlement in marine and soft ground construction projects. Full article
(This article belongs to the Special Issue Marine Geotechnical Applications in Marine Structures)
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17 pages, 3979 KB  
Article
An Examination of the Failure Envelope of Finned Suction Anchors Subjected to Combined Vertical–Horizontal Loadings in Clay Through Numerical Modeling
by Angelica Gilo and Yun Wook Choo
J. Mar. Sci. Eng. 2025, 13(6), 1104; https://doi.org/10.3390/jmse13061104 - 30 May 2025
Cited by 1 | Viewed by 1339
Abstract
The addition of fins to suction anchors has been proposed to enhance bearing capacity in combined loadings. This study examines the failure envelope of finned suction anchors subjected to combined vertical–horizontal loadings in normally and lightly over-consolidated clay using the finite element method, [...] Read more.
The addition of fins to suction anchors has been proposed to enhance bearing capacity in combined loadings. This study examines the failure envelope of finned suction anchors subjected to combined vertical–horizontal loadings in normally and lightly over-consolidated clay using the finite element method, focusing on fin capacity enhancement and fin efficiency against penetration resistance. Parameters considered include different length-to-diameter ratios of the suction anchor, as well as different fin-to-shaft-length ratios, to evaluate the effect on capacity. The addition of fins expands the vertical–horizontal failure envelope, minimally altering the shape of the failure envelope. The fin factor (the ratio of the finned suction anchor capacity to the conventional suction anchor capacity) increases with fin lengths but exhibits minimal dependence on length-to-diameter ratios. A nonlinear relationship between fin length and fin factor (both vertical and horizontal) with a distinct trend is observed in horizontal capacity. Fin efficiency (the ratio of capacity to penetration resistance) decreases with increasing fin length except at a fin length-to-shaft ratio of unity in horizontal capacity. Full article
(This article belongs to the Special Issue Marine Geotechnical Applications in Marine Structures)
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26 pages, 16209 KB  
Article
A Bacteria Acclimation Technology Based on Nitrogen Source Regulation and Its Application in the Reinforcement of Island and Reef Slopes
by Xin Chen, Ziyu Wang, Liang Cao, Peng Cao, Shuyue Liu, Yu Xie and Yingqi Xie
J. Mar. Sci. Eng. 2025, 13(5), 848; https://doi.org/10.3390/jmse13050848 - 24 Apr 2025
Viewed by 1420
Abstract
Microbially Induced Calcium Carbonate Precipitation (MICP) technology has garnered significant attention in geotechnical engineering and environmental remediation due to its environmentally friendly and cost-effective advantages. However, the current MICP technology faces challenges in practical engineering applications, particularly the prolonged cementation time, which makes [...] Read more.
Microbially Induced Calcium Carbonate Precipitation (MICP) technology has garnered significant attention in geotechnical engineering and environmental remediation due to its environmentally friendly and cost-effective advantages. However, the current MICP technology faces challenges in practical engineering applications, particularly the prolonged cementation time, which makes it difficult to meet the requirements for coastal slope reinforcement. Therefore, this study designed novel cultivation conditions for Sporosarcina pasteurii by regulating external nitrogen source concentration and evaluated its environmental adaptability by measuring OD600, urease activity, and bacterial length. By monitoring the changes in Ca2+ concentration, pH, and precipitation rate over time during the mineralization process, rapid cementation under MICP conditions was achieved. The engineering applicability of this approach in slope reinforcement was comprehensively assessed through simulated on-site scouring and penetration tests. The reinforcement mechanism and the microstructure of the cementation under novel cultivation conditions were analyzed using scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), and X-ray diffraction (XRD). The results indicated that the activity of Sporosarcina pasteurii in the modified NH4-YE medium significantly improved in freshwater environments, and the MICP mineralization reaction was rapid, completing within 4 h. The primary crystal form of the generated precipitate was rhombohedral calcite, which formed a tightly bonded microstructure with calcareous sand, achieving a maximum reinforcement strength of 13.61 MPa. The penetration strength increased by at least 20%, and the precipitation rate improved by at least 2-fold. The scouring morphology remained essentially unchanged within 6 h. The findings of this study provide foundational and theoretical data for the application of MICP reinforcement technology to coastal calcareous sand models. Full article
(This article belongs to the Special Issue Marine Geotechnical Applications in Marine Structures)
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