Innovative Experimental Methods, Advanced Field/in-Situ Testing, and Their Engineering Applications in Geomechanics

A special issue of Geosciences (ISSN 2076-3263). This special issue belongs to the section "Geomechanics".

Deadline for manuscript submissions: 30 June 2026 | Viewed by 2268

Special Issue Editors


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Guest Editor
Institute of Smart City and Intelligent Transportation, Southwest Jiaotong University, Chengdu 611756, China
Interests: energy geo-structure; energy pile; pile-soil interaction
School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China
Interests: seabed response; stochastic finite element method; wave–seabed–structure interaction; slope stability evaluation
Special Issues, Collections and Topics in MDPI journals
Institute for Geotechnical Engineering, ETH Zurich, 8049 Zurich, Switzerland
Interests: molecular dynamics; unsaturated soil mechanics; underground gas storage
Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin University of Technology, Guilin 541004, China
Interests: rock failure; microseismic monitoring; rockburst; intelligent early warning

Special Issue Information

Dear Colleagues,

The core of geomechanics lies in investigating the mechanical behavior of geological materials, and its research outcomes provide irreplaceable support for geotechnical engineering, energy development (e.g., shale gas extraction, and geothermal energy development), and geological hazard mitigation. In research within this field, experimental methods—integrated with field testing, in situ testing, and case studies—serve as the core technical pillar: while traditional experimental methods were once limited by the accurate reproduction of complex geological conditions (e.g., heterogeneous rock masses and multi-field interactions), the advancement of modern experimental technologies (such as high-precision rock mechanics testing systems, multi-field coupling experimental setups, microscale observation technologies, and advanced field/in-situ testing equipment) now enables us to obtain direct, reliable measured data for studying the mechanical properties of geological materials. Moreover, in-depth case studies bridge experimental findings with real-world engineering scenarios, verifying the practical value of experimental results and guiding engineering decision-making. Today, driven by the progress of experimental technologies and engineering demand, experimental methods (supported by field/ in situ testing and case studies) have become a core link connecting geomechanics theoretical research and engineering practice, independently facilitating solutions to key scientific and engineering challenges such as rock failure mechanism analysis and underground space stability evaluation.

This Special Issue aims to solicit a wide range of papers (including original research articles and review papers) to comprehensively showcase the latest technological advancements, innovative methods, and engineering applications of experimental methods in geomechanics—with a specific focus on field testing, in situ testing, and case studies. It also encourages discussions on innovative research paradigms that optimize experimental design, enhance data reliability, and strengthen the connection between experimental results and practical engineering. This topic is highly aligned with the journal’s focus on publishing high-quality research at the intersection of geosciences and engineering: it not only provides a dedicated platform for presenting research on experimental studies, field/ in situ testing, and case-based validation but also promotes knowledge sharing and technical exchange between academia and industry in this field, advancing the practical application of experimental geomechanics.

This Special Issue will welcome manuscripts that link together the following themes:

  • Innovative experimental methods for geomechanical problems;
  • Advanced field and in situ testing technologies for geomechanical investigations;
  • Rock mass failure/ instability: experimental observation, mechanism analysis, and engineering case studies;
  • Applications of experimental methods in energy geotechnics;
  • Experimental data processing and interpretation;
  • Case studies of geomechanical engineering;
  • Multi-scale experimental technologies for geological materials.

We look forward to receiving your original research articles and reviews.

Dr. Huaibo Song
Dr. Bin Zhu
Dr. Siqi Zhang
Dr. Jiaming Li
Guest Editors

Manuscript Submission Information

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Keywords

  • geomechanics
  • experimental methods
  • numerical modeling
  • energy geotechnics
  • AI/ML in geomechanics
  • uncertainty analysis

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Published Papers (2 papers)

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Research

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17 pages, 4973 KB  
Article
A Study on Concrete with Typical Manufactured Sands: Deterioration Evaluation and Service Life Prediction Under Outdoor and Indoor Sulfate Experiments in Gansu Province, China
by Lei Zhang, Yi Dai, Hongxia Qiao, Fukui Zhang, Shanglin Song and Anyuan Sun
Geosciences 2025, 15(11), 434; https://doi.org/10.3390/geosciences15110434 - 14 Nov 2025
Viewed by 865
Abstract
With the rapid development of infrastructure and the need to protect natural ecosystems, manufactured sand is used to replace river sand in concretes. To compare the deterioration patterns of concretes made with different sands, C50 specimens using basalt (C50X), tuff (C50N), and granite [...] Read more.
With the rapid development of infrastructure and the need to protect natural ecosystems, manufactured sand is used to replace river sand in concretes. To compare the deterioration patterns of concretes made with different sands, C50 specimens using basalt (C50X), tuff (C50N), and granite (C50H) manufactured sands and river sand (C50T) were prepared, then tested outdoors by full burial in a sulfate saline soil and indoors by accelerated freeze–thaw in a sulfate solution. The outdoor experiments indicate that C50X deteriorated the slowest, whereas the resistance to mass loss ranking was: C50X > C50H > C50N > C50T. In the indoor freeze–thaw experiments, C50X also performed best, retaining 51% relative dynamic modulus of elasticity (RDME) after 450 cycles. X-ray diffraction and scanning electron microscopy showed that C50T was weakened by abundant MgSO4·7H2O crystals, while C50X formed a denser matrix that limits salt-crystallization expansion. Moreover, a GM(1,1)-Markov model was developed to forecast long-term durability. For C50X, the model predicted an estimated service life of 68 months in the outdoor environment, at which point it is projected to reach the 5% mass loss failure threshold. Separately, it forecasted that the RDME would remain above 41% after 450 indoor freeze–thaw cycles. Full article
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Review

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18 pages, 2888 KB  
Review
Advancement in In Situ and Laboratory Testing Technologies for Marine Sediment Properties: A Review of Resistivity and Acoustic Characteristics
by Bin Zhu, Mengrui Zhao, Yuan Sun, Chao Li, Huaibo Song and Weiling Liu
Geosciences 2026, 16(1), 47; https://doi.org/10.3390/geosciences16010047 - 20 Jan 2026
Cited by 1 | Viewed by 735
Abstract
The electrical resistivity and acoustic properties of marine sediments are essential for understanding their physical and mechanical behavior. Over recent decades, significant advancements have been made in both in situ and laboratory measurement techniques, alongside theoretical models, to establish correlations between these geophysical [...] Read more.
The electrical resistivity and acoustic properties of marine sediments are essential for understanding their physical and mechanical behavior. Over recent decades, significant advancements have been made in both in situ and laboratory measurement techniques, alongside theoretical models, to establish correlations between these geophysical parameters and sediment properties such as porosity, saturation, and consolidation degree. However, a comprehensive comparison of the advantages, limitations, and applicability of different measurement methods remains underexplored, particularly in complex scenarios such as gas hydrate-bearing sediments. This review provides an in-depth synthesis of recent developments in in situ and laboratory testing technologies for assessing the resistivity and acoustic characteristics of marine sediments. Special emphasis is placed on the latest advances in acoustic measurements during gas hydrate formation and decomposition. The review highlights key challenges, including (1) limited vertical resolution in in situ resistivity measurements due to probe geometry; (2) errors arising from electrode polarization and poor soil–electrode contact; and (3) discrepancies in theoretical models linking geophysical parameters to sediment properties. To address these challenges, future research directions are proposed, focusing on optimizing electrode array designs for high-resolution resistivity measurements and developing non-destructive acoustic techniques for deep-sea sediments. This work offers a critical reference for marine geophysics and offshore engineering researchers, aiding the selection and development of testing technologies for effective marine sediment characterization. Full article
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