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Failure Characteristics of Deep Rocks, Volume II
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School of Resources and Safety Engineering, Central South University, Hunan 410083, China
School of Civil Engineering, Southeast University, Nanjing 210096, China
School of Resources and Safety Engineering, Central South University, Changsha 410083, China
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Failure Characteristics of Deep Rocks, Volume II

Abstract submission deadline
31 March 2024
Manuscript submission deadline
31 May 2024
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Topic Information

Dear Colleagues,

In recent decades, the design and construction of geotechnical engineering, such as mines, tunnels, hydropower stations and nuclear waste repositories, have been surging in scale, and this trend is expected to continue in the future. These large-scale engineering projects are closely related to geomaterials (such as rock and soil) and geomechanics. When rock engineering enters increasingly deep exploitations, two critical scientific problems pose a serious threat to people's life and property, the construction efficiency of projects and the ecological environment. For one thing, geological disasters, including rockburst, landslide and slabbing, frequently occur during the construction and operation of rock projects as the geostress becomes higher. Scientists aim to prevent the instability and breakage of surrounding rock. Meanwhile, researchers and workers seek to break hard rock efficiently in the excavation process. Therefore, the investigation and better understanding of the mechanical and fracture behavior of deep rocks is of key importance to the scientific design and safe operation of deep rock engineering. This Topic is dedicated as a specific platform for all geomechanics research. This Topical Section can serve as the missing link between applied and fundamental research journals. Therefore, “Failure Characteristics of Deep Rock” is dedicated to, and thus welcomes, all geo-based scientific research in order to deepen the understanding of deep geohazards. Authors are therefore invited to submit their relevant research contributions to this Topic.

Prof. Dr. Diyuan Li
Dr. Zhenyu Han
Dr. Xin Cai
Topic Editors

Keywords

  • rock mechanics
  • tunnelling
  • geological and geotechnical engineering
  • fracture/damage mechanics
  • mining
  • mechanical properties
  • observing methods (such as DIC, CT, etc.)
  • geohazards
  • stress and deformation
  • constitutive relations
  • engineering applications
  • rock-breaking methods
  • cracking process
  • numerical simulation
  • artificial intelligence

Participating Journals

Journal Name Impact Factor CiteScore Launched Year First Decision (median) APC
Energies
energies 		3.252 5.0 2008 15.5 Days 2200 CHF Submit
Geosciences
geosciences 		- 4.8 2011 22.5 Days 1500 CHF Submit
Minerals
minerals 		2.818 3.7 2011 16.2 Days 2000 CHF Submit

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Published Papers (2 papers)

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Article
A Quantitative Method to Predict the Shear Yield Stress of Rock Joints
by
Zhenyu Han
,
Shijie Xie
,
Hang Lin
,
Hongyu Duan
and
Diyuan Li
Minerals 2023, 13(4), 500; https://doi.org/10.3390/min13040500 - 31 Mar 2023
Viewed by 589
Abstract
The shear mechanical properties of rock joints are crucial in assessing the stability and safety of rock structures, including slopes, rock dams, and tunnels. The yield stress serves as a pivotal point that distinguishes the linear and non-linear mechanical characteristics of rock joints. [...] Read more.
The shear mechanical properties of rock joints are crucial in assessing the stability and safety of rock structures, including slopes, rock dams, and tunnels. The yield stress serves as a pivotal point that distinguishes the linear and non-linear mechanical characteristics of rock joints. Due to its significance in risk monitoring and safety evaluation, this paper first provides an overview of the commonly employed methods for identifying the yield stress. Then, a novel displacement reduction method based on the displacement reduction coefficient is proposed and systemically examined. The comparison between the proposed method and existing methods based on shear experimental data suggests that the former is more adept at accurately determining the yield stress without subjective interference. Finally, this innovative method is employed to estimate the effects of external environmental factors on the yield stress of rock joints. Full article
(This article belongs to the Topic Failure Characteristics of Deep Rocks, Volume II)
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Article
Study on Stability Control Mechanism of Deep Soft Rock Roadway and Active Support Technology of Bolt-Grouting Flexible Bolt
by
Hao Zhang
,
Yingming Li
,
Xiangjun Wang
,
Shoudong Yu
and
Yi Wang
Minerals 2023, 13(3), 409; https://doi.org/10.3390/min13030409 - 15 Mar 2023
Cited by 1 | Viewed by 450
Abstract
In order to study the stability control mechanism of deep soft rock roadway and the active support technology of the anchor-grouting flexible bolt, this paper takes the west wing transportation roadway of Yuandian No. 2 Coal Mine of Huaibei Mining Co., Ltd., Huaibei, [...] Read more.
In order to study the stability control mechanism of deep soft rock roadway and the active support technology of the anchor-grouting flexible bolt, this paper takes the west wing transportation roadway of Yuandian No. 2 Coal Mine of Huaibei Mining Co., Ltd., Huaibei, China as the research background. By analyzing the occurrence conditions and failure characteristics of the surrounding rock of the west wing transportation roadway and the structural characteristics and mechanical properties of the anchor-grouting flexible bolt, combined with the elastic–plastic and superimposed arch theory analysis, the superposition community theoretical model and the superposition joint support scheme of “bolt (cable) + anchor net + anchor-grouting flexible bolt + shotcrete support” are proposed. The reliability of the combined support scheme is analyzed by FLAC 3D numerical simulation software and field experiment. The results show that the maximum roof-to-floor convergence and two-side convergence of the west wing transportation roadway are only 30.7 mm and 27.1 mm after adopting the combined support scheme, and the deep displacement variation is within 7 mm, which can effectively maintain the stability of the roadway. The combined support scheme has a certain reference value for other similar roadways. Full article
(This article belongs to the Topic Failure Characteristics of Deep Rocks, Volume II)
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