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Advance Rock Mechanics Theories and Techniques in Tunnelling for Energy Development

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "H: Geo-Energy".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 680

Special Issue Editors

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
Interests: underground engineering; rock failure; rock mechanics; numerical method
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Guest Editor
School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China
Interests: rock mechanics; fracture mechanics; numerical simulation

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Guest Editor
School of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, China
Interests: 2D/3D FDEM applied in fracture modeling; numerical analysis on large squeezing deformation during tunnelling

Special Issue Information

Dear Colleagues,

Over the last few decades, deeper and longer tunnels have been constructed to meet the needs of energy storage and coal mining. During tunnelling, extreme geological conditions, such as high ground stress, high temperature, and soft rock, may easily cause the failure of surrounding rocks. Therefore, many challenges have arisen with respect to tunnelling for energy development. Advanced rock mechanics theories and support theories and techniques (including grout material, shotcrete, steel arch, anchor bolt, and the corresponding simulation theory and method) are essential to ensure the safety of tunnels, and numerous studies have been conducted on this issue. Therefore, considering the above considerations, we invite investigators to contribute to this Special Issue on “Advance Rock Mechanics Theories and Techniques in Tunnelling for Energy Development” with original research papers. Potential topics include, but are not limited to, the following:

  1. Rock mechanics theory for energy development;
  2. Mechanical properties of rock mass during mining;
  3. Monitoring techniques for mining;
  4. Novelty cement-based grouting materials;
  5. Supporting techniques for tunnels;
  6. Numerical modelling of rock and structure failure;
  7. Case study and other related aspects.

Dr. Xuewei Liu
Dr. Yalong Jiang
Dr. He Liu
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. Energies 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

  • deep coal mining
  • energy exploitation
  • energy storage
  • rock mechanics
  • numerical simulation
  • theoretical analysis
  • tunnelling
  • failure energy

Published Papers (1 paper)

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Research

15 pages, 23032 KiB  
Article
Shear Behavior of Two-Dimensional Propped Rough Fractures
by Qi Zhang, Jin Luo, Sai Wang, Jinsong Zhu and Deshan Cui
Energies 2024, 17(4), 956; https://doi.org/10.3390/en17040956 - 19 Feb 2024
Viewed by 448
Abstract
The deployment of proppant to fracture shear is a promising approach to stimulating hydraulic permeability in fractured reservoirs. However, the interactive effects of proppant and surface roughness have not been clearly revealed. To better understand this concern, direct shear tests (DSTs) are implemented [...] Read more.
The deployment of proppant to fracture shear is a promising approach to stimulating hydraulic permeability in fractured reservoirs. However, the interactive effects of proppant and surface roughness have not been clearly revealed. To better understand this concern, direct shear tests (DSTs) are implemented on 2D rough fractures with a joint roughness coefficient (JRC) varying from 4 to 6 and 18 to 20 under propped conditions. The results show that peak shear strength is positively proportional to asperity amplitude. The highest peak shear strength is determined with a JRC of 14–16 due to it having the highest asperity of 6.34 mm. The peak shear load was decreased significantly by deploying the proppant. Shear damage only occurs in the localized zone where the upper–lower asperities contact. The shear dilatancy was attributed to both the “shear climbing” effects and the shear damage that caused the frictional slip. The proppants weaken the climbing effect but also prevent the shear damage that in turn promotes shear dilatancy. Full article
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