Monitoring, Assessment, Prevention and Mitigation of Rock Burst and Gas Outburst Hazards in Coal Mines (MAPROC) PDF Download
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Author: Publisher: ISBN: 9789276420415 Category : Languages : en Pages :
Book Description
The main objective of MapROC project has been to field test and develop a number of rock burst and gas outburst prevention techniques based on stress and pressure relief principles and evaluate their performance through continuous microseismic monitoring at mine sites. It was established that large diameter stress and gas pressure relief boreholes used at barrier pillars, and the borehole blasting practices extensively tested at Coal Mine Velenje were very effective. As a result, these measures have now entered in Coal Mine Velenje's statutes and will be implemented at all development sites against increased rock burst hazards. Extensive field microseismic monitoring carried out at two mines and near-real-time assessment of this data on a weekly basis led to the development of a number of risk assessment techniques which were validated for their future use by the industry. A catalogue of short term risk evaluation models aiming at forecasting the risk levels of rock bursts and coal and gas outbursts in terms of different evaluation indices. Furthermore, a number of numerical modelling methods were also developed and validated. Utilising all the learnings from MapROC, a generic risk assessment methodology was developed and validated using to a representative number of mining scenarios utilising site-specific data and the laboratory and field studies conducted in the MapROC project. The generic methodology is believed to be applicable to most European coal mines with different geological and mining conditions. The state-of-the-art best technologies report describing the monitoring, assessment, prevention and mitigation of rock burst and gas outburst hazards in coal mines can be used by the industry in Europe and internationally.
Author: Publisher: ISBN: 9789276420415 Category : Languages : en Pages :
Book Description
The main objective of MapROC project has been to field test and develop a number of rock burst and gas outburst prevention techniques based on stress and pressure relief principles and evaluate their performance through continuous microseismic monitoring at mine sites. It was established that large diameter stress and gas pressure relief boreholes used at barrier pillars, and the borehole blasting practices extensively tested at Coal Mine Velenje were very effective. As a result, these measures have now entered in Coal Mine Velenje's statutes and will be implemented at all development sites against increased rock burst hazards. Extensive field microseismic monitoring carried out at two mines and near-real-time assessment of this data on a weekly basis led to the development of a number of risk assessment techniques which were validated for their future use by the industry. A catalogue of short term risk evaluation models aiming at forecasting the risk levels of rock bursts and coal and gas outbursts in terms of different evaluation indices. Furthermore, a number of numerical modelling methods were also developed and validated. Utilising all the learnings from MapROC, a generic risk assessment methodology was developed and validated using to a representative number of mining scenarios utilising site-specific data and the laboratory and field studies conducted in the MapROC project. The generic methodology is believed to be applicable to most European coal mines with different geological and mining conditions. The state-of-the-art best technologies report describing the monitoring, assessment, prevention and mitigation of rock burst and gas outburst hazards in coal mines can be used by the industry in Europe and internationally.
Author: Ömer Aydan Publisher: CRC Press ISBN: 1000576701 Category : Technology & Engineering Languages : en Pages : 1553
Book Description
Rock dynamics has become one of the most important topics in the field of rock mechanics and rock engineering, and involves a wide variety of topics, from earthquake engineering, blasting, impacts, failure of rock engineering structures as well as the occurrence and prediction of earthquakes, induced seismicity, rock bursts to non-destructive testing and explorations. Rock dynamics has wide applications in civil and infrastructural, resources and energy, geological and environmental engineering, geothermal energy, and earthquake hazard management, and has become one of the most topical areas. 2019 Rock Dynamics Summit contains 8 keynote addresses and 128 regular full papers that were presented at the 2019 Rock Dynamics Summit (2019 RDS, Okinawa, Japan, 7-11 May 2019), a specialized conference jointly organized by the Rock Dynamics Committee of the Japanese Society of Civil Engineers (JSCE-RDC), the Japanese Society for Rock Mechanics (JSRM), and which was supported by the International Society for Rock Mechanics and Rock Engineering (ISRM) and the Turkish National Society for Rock Mechanics (TNSRM). The contributions cover a wide range of topics on the dynamic behavior of rock and rock masses and scientific and engineering applications, and include: - Laboratory tests on Dynamic Responses of Rocks and Rock Masses / Fracturing of Rocks and Associated Strong Motions - Estimation Procedures and Numerical Techniques of Strong Motions Associated with the Rupture of Earth’s Crust and Some Strong Motion - Dynamic Response and Stability of Rock Foundations, Underground Excavations in Rock, Rock Slopes Dynamic Responses and Stability of Stone Masonry Historical Structures and Monuments - Induced Seismicity - Dynamic Simulation of Loading and Excavation - Blasting and machinery induced vibrations - Rockburst, Outburst, Impacts - Nondestructive Testing Using Shock Waves - Case Histories of Failure Phenomenon in Rock Engineering 2019 Rock Dynamics Summit contains the state-of-the-art in rock dynamics, and will be invaluable to professionals and academics interested in the latest advances in new techniques for experiments, analytical and numerical modelling as well as monitoring in dynamics of rocks and rock engineering structures.
Author: Gerhard Braeuner Publisher: Routledge ISBN: 1351418033 Category : Technology & Engineering Languages : en Pages : 287
Book Description
The preventive methods described have proved highly effective. They comprise laying out the workings in such a way as to minimize dangerous concentrations of ground stresses, and early elimination by means of blasting, drilling, or water infusion. An account of these methods as applied in German coal mines, the deepest in the world. Contents: Rockbursts & similar phenomena; Conditions of occurrence; Influence of rock stress; Bursting & nonbursting coal; Long-term prevention; Direct prevention; Borehole patterns for direct prevention; Destressing methods; Case histories.
Author: Xiangguo Kong Publisher: Mdpi AG ISBN: 9783036594309 Category : Technology & Engineering Languages : en Pages : 0
Book Description
In human social development, the consumption of fossil energy, especially coal, has promoted economic prosperity, cultural exchanges, and social progress. With shallow coal resources exhausted, coal mining engineering has entered deep areas. The coal geology environment of the deep area differs from that of the shallow. With mining depth increasing, all the stress of buried rock stratum and surrounding rock and gas pressure of coal seam increase gradually. In addition, geological structures, such as complex faults, big folds, and thick-hard roofs, will increase the risk of coal mining. Once the dynamic disaster occurs, it will induce miner casualties and property losses. So, it is urgent to identify mine hazards, such as coal and gas outbursts, rock bursts, gas explosions, and coal fires, and research their formation mechanism, occurrence, and development process. Furthermore, prevention and control methods should be proposed to reduce mine disasters. Only in this way can we promote the safe, green, and efficient development of coal mining. This Topical Collection, titled "Mine Hazards Identification, Prevention, and Control," aims to allow global researchers to conduct a broader scientific and technological discussion on such advances to improve the prevention and control level of disasters encountered during underground coal mining. The discussion topics include, but are not limited to, the basic experiments, modeling, numerical simulation, and field tests of aforementioned disasters.
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Author: Ömer Aydan
Author: Gerhard Braeuner
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Author: William J. Karwoski
Author: R. D. Lama
Author: Wilson Blake
Author: Sitao Zhu
Author: Xiangguo Kong
Author: Victor Watteyne