Complex Rock Mechanics Problems and Solutions, 2nd Edition

Topic Information

Dear Colleagues,

This Topic is a continuation of the previous successful Topic “Complex Rock Mechanics Problems and Solutions (https://www.mdpi.com/topics/rock_mechanics)”.

The purpose behind the birth of rock mechanics was to solve rock engineering stability problems and study rock crushing conditions. The research medium is very complex, and there are many unstable or uncertain factors associated with mechanical properties, which make it difficult to establish an independent, complete and systematic theoretical basis for this discipline. The development of rock mechanics has always used the basic theories and research results of solid mechanics, soil mechanics, engineering geology and other disciplines to solve the problems of geotechnical engineering. Therefore, rock mechanics that emphasize different industries often have different definitions.

Due to the extensiveness of the service objects of rock mechanics and the complexity of the research objects, it has been concluded that the research content of rock mechanics must also be extensive and complex. We, therefore, invite papers on innovative technical developments, in addition to reviews, case studies and analytical and assessment papers from different disciplines that are relevant to the topic of rock mechanics. The main topics of the section include, but are not limited to, the following:

• Simulation, mechanical expression and mechanical mechanism of rock mass structure and structural plane;
• The strength, failure mechanism and failure criterion of fractured rock mass;
• Interaction and stability evaluation of rock mass and engineering structure;
• Mechanical properties of soft rock and its rock mass mechanics;
• Water–rock–stress coupling effect and rock mass engineering stability;
• High in situ stress rock mass mechanics;
• The overall comprehensive simulation feedback system and optimization technology of rock mass structure;
• Rock mass dynamics, thermodynamics and hydraulic problems;
• Rock mass rheology and long-term strength;
• Computer-aided design of rock mass engineering and automatic image generation processing.

Prof. Dr. Chun Zhu
Prof. Dr. Shibin Tang
Prof. Dr. Shengyuan Song
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Applied Sciences applsci	2.5	5.3	2011	18.4 Days	CHF 2400	Submit
Energies energies	3.0	6.2	2008	16.8 Days	CHF 2600	Submit
Geosciences geosciences	2.4	5.3	2011	23.5 Days	CHF 1800	Submit
Minerals minerals	2.2	4.1	2011	18 Days	CHF 2400	Submit
Processes processes	2.8	5.1	2013	14.9 Days	CHF 2400	Submit

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Published Papers (1 paper)

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All Applied Sciences Energies Geosciences Minerals Processes

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16 pages, 16719 KiB  

Open AccessArticle

Experimental Study on Plugging of Micro-Leakage Interlayer (MLI) in Underground Salt Cavern Gas Storage (Jintan, China)

by Hongwu Yin and Xinbo Ge

Processes 2025, 13(4), 1188; https://doi.org/10.3390/pr13041188 - 14 Apr 2025

Viewed by 194

Abstract

The permeability of a certain mudstone interlayer in underground salt cavern gas storage (Jintan, China) is slightly high, as indicated by pressure tests (leakage rate of approximately 1~2 L/d). This layer is referred to as the “Micro-Leakage Interlayer (MLI)”. The MLI significantly impacts [...] Read more.

The permeability of a certain mudstone interlayer in underground salt cavern gas storage (Jintan, China) is slightly high, as indicated by pressure tests (leakage rate of approximately 1~2 L/d). This layer is referred to as the “Micro-Leakage Interlayer (MLI)”. The MLI significantly impacts the tightness of gas storage, potentially leading to substantial losses. To address this problem, an experimental study was conducted. Initially, a method utilizing brine crystallization to plug the micro-leakage interlayer (MLI) was proposed. After crystallization, the porosity of the MLI cores exhibited a notable increase, and the permeability of the MLI cores increased significantly, further exacerbating the risk of gas leakage. These results indicate that the plugging solution requires further exploration. Finally, a combined plugging solution utilizing brine crystallization and ultrafine cement was proposed. Using saturated brine and waterproof coatings, an ultrafine cement slurry was prepared, and specimens were created for testing. The results indicate that the specimens exhibited a porosity of approximately 3%, a permeability below 10⁻¹⁹ m², and a uniaxial compressive strength of about 40 MPa. The ultrafine cement particles had an average particle size of 3 µm, and the ultrafine cement slurry exhibited extremely low porosity and permeability, as well as high strength. The results indicate that this solution is highly feasible and can be applied to field engineering. Full article

(This article belongs to the Topic Complex Rock Mechanics Problems and Solutions, 2nd Edition)

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