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Applied Sciences
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The Advances of Rock Dynamics: 2nd Edition
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The Advances of Rock Dynamics: 2nd Edition

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Civil Engineering".

Deadline for manuscript submissions: 30 April 2024 | Viewed by 1536

Special Issue Editor

Dr. Tianhui Ma

E-Mail Website
Guest Editor
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
Interests: rockburst; monitoring and early warning
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue is devoted to the research of rockburst-related technology. Rock dynamics are related to statics. The object studied by the latter is the force field response of rocks to the surrounding physical environment under static equilibrium conditions, ignoring the inertial effect of medium units. Rock dynamics research studies the effect of the impact load on rock. This research field is closely related to water conservation, hydropower, transportation, railway, energy, mining and construction engineering, protection engineering, and national defense construction. Although there have been no major breakthroughs in the study of rockburst mechanisms, continuous progress is being made in rockburst prediction and early warning systems.

Potential topics include, but are not limited to:

  • Dynamic mechanical properties and the constitutive relation of rock;
  • The propagation and attenuation law of stress wave in rock mass;
  • Dynamic failure mechanisms and the numerical simulation of rock;
  • Safety and protection in rock engineering;
  • Dynamic stability analysis of rock caves, foundations, and slopes;
  • Rock blasting technology;
  • Study of the mechanism of rockbursts;
  • Dynamic disaster monitoring of rock engineering;
  • New techniques and methods for testing rock dynamic parameters;
  • Other studies related to rock dynamics.

Dr. Tianhui Ma
Guest Editor

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. Applied Sciences 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 2400 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

  • rockburst
  • dynamic failure mechanisms
  • rock blasting technology
  • dynamic disaster
  • water inrush
  • coal and gas outburst
  • landslide

Published Papers (2 papers)

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Research

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14 pages, 3506 KiB  
Article
Analysis of Dynamic Mechanical Properties and Energy Consumption of Fractured Sandstone under Dynamic–Static Combination Conditions
by Qi Ping, Yijie Xu, Jing Hu, Shijia Sun, Xiangyang Li and Shiwei Wu
Appl. Sci. 2024, 14(6), 2359; https://doi.org/10.3390/app14062359 - 11 Mar 2024
Viewed by 484
Abstract
Under dynamic loads, such as blasting, excavation, or quarrying, rocks with fissures are the first to sustain damage, leading to instability in the engineering rock mass. To investigate the kinetic properties of fractured rocks, fractured coal mine sandstone specimens underwent impact compression tests [...] Read more.
Under dynamic loads, such as blasting, excavation, or quarrying, rocks with fissures are the first to sustain damage, leading to instability in the engineering rock mass. To investigate the kinetic properties of fractured rocks, fractured coal mine sandstone specimens underwent impact compression tests using a dynamic–static combination SHPB (split Hopkinson pressure bar) test device at different loading rates under combined dynamic and static conditions. The damage characteristics of the specimens were analyzed from an energy point of view. The results show that under the dynamic and static combined condition, when five impact loading air pressures are used for loading at different impact rates, the trends of the dynamic stress–strain curves of prefabricated fissured rock samples under various impact pressures were discovered to be similar and were mainly categorized into three main stages of elasticity, yield, and destruction; the specimen’s dynamic compressive strength increases according to a power function relationship; as the average strain rate increases, the dynamic strain increases linearly and the dynamic modulus of elasticity increases in a quadratic relationship, all of which show a significant strain rate effect. The incident energy is a power function of the loading rate. The reflected, transmitted, and absorbed energies by the sample increase with the incident energy. The degree of the sandstone specimen fragmentation gradually grows with increasing impact loading rate and incident energy, as evidenced by a decrease in the scale of the fragments. The absorbed energy in the sample is mainly used for the deformation damage of the rock, and the more intense the fragmentation of the specimen, the more absorbed energy is required. Full article
(This article belongs to the Special Issue The Advances of Rock Dynamics: 2nd Edition)
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Review

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24 pages, 9714 KiB  
Review
Applications of Microseismic Monitoring Technique in Coal Mines: A State-of-the-Art Review
by Fei Liu, Yan Wang, Miaomiao Kou and Changhui Liang
Appl. Sci. 2024, 14(4), 1509; https://doi.org/10.3390/app14041509 - 13 Feb 2024
Viewed by 700
Abstract
China’s coal mines have to extend to greater depths for the exploitation of more mineral resources, and they have suffered catastrophic mining-induced disasters, such as rockbursts, water inrushes, coal and gas outbursts, and roof fall accidents. The microseismic monitoring technique is a practical [...] Read more.
China’s coal mines have to extend to greater depths for the exploitation of more mineral resources, and they have suffered catastrophic mining-induced disasters, such as rockbursts, water inrushes, coal and gas outbursts, and roof fall accidents. The microseismic monitoring technique is a practical tool for mine safety management, which is extensively utilized in many Chinese coal mines. Microcracks of coal/rock masses are recorded as microseismicities in the field, and the potential mining-induced instabilities can be assessed by in-depth analysis of the microseismic parameters. This study provides a state-of-the-art review of the achievements and developments of the microseismic monitoring technique in coal mines. It also presents some prospects for improving the location accuracy of microseismicity, efficient and intelligent processing of the microseismic data, comprehensive assessment of coal/rock instabilities, and development of new microseismic monitoring equipment. This study is valuable for mine safety management and may contribute to improving the deep mining production. Full article
(This article belongs to the Special Issue The Advances of Rock Dynamics: 2nd Edition)
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