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Saturday, May 16, 2020 | History

3 edition of A review of the mechanisms of gas outbursts in coal found in the catalog.

A review of the mechanisms of gas outbursts in coal

D. M. Hyman

A review of the mechanisms of gas outbursts in coal

by D. M. Hyman

  • 147 Want to read
  • 21 Currently reading

Published by U.S. Dept. of the Interior, Bureau of Mines in [Avondale, MD] .
Written in English

    Subjects:
  • Coal mines and mining.,
  • Gas bursts.

  • Edition Notes

    Bibliography: p. 10-11.

    Statementby David M. Hyman.
    SeriesInformation circular ;, 9155, Information circular (United States. Bureau of Mines) ;, 9155.
    Classifications
    LC ClassificationsTN295 .U4 no. 9155, TN313 .U4 no. 9155
    The Physical Object
    Pagination11 p. :
    Number of Pages11
    ID Numbers
    Open LibraryOL2493254M
    LC Control Number87600180

    Month HTML views PDF downloads XML downloads; Sep 1: Oct 1: Nov 2: Dec 4: Jan 68 Cited by: Coal mine gas (firedamp) is a problematic phenomenon associated with coal mining, as the gas can form explosive mixtures together with air. The main component of the primary coal seam gas is methane in a concentration of % the gas develops during the geochemical conversion of organic substances to coal (carbonisation).

    Rock failure mechanisms: explained and illustrated. [Chun'an Tang; J A Hudson] "A Balkema book." Description: inhomogeneous rocks --Rock failure around tunnels in jointed rock --Rock failure induced by longwall coal mining --Gas outbursts in coal mines --Particle breakage and comminution D modelling and 'turtle crack formation' in. Instantaneous outbursts of coal and gas, a review in the proceeding, The Australian Institute of Mining and Metallurgy, Vol. , pp. Hargraves, A. J. (). Seam gases in major Australian coalfields, proceeding of 13 th congress of council of mining and metallurgical institutions, Vol. 3, pp.

      Ground Engineering: Principles and Practices for Underground Coal Mining wins Merv Harris Award from the Mine Managers Association of Australia. The Merv Harris award is named for Merv Harris who donated money to be invested for a continuing award in Pages: Research of The Early Warning System of Coal and Gas Outburst Jinhao Lu 1, Su Bai 2 and Chi Dong 3 1 Department of Computer Science Northeast Petroleum University at Qin Huangdao 2 Sinopec ShengLi Oil Field Hekou Oil Production Plant 3 Petroleum Engineering Institute Northeast Petroleum University Abstract. At present, accidents of coal and gas outburst are a big threat to safety production in File Size: KB.


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A review of the mechanisms of gas outbursts in coal by D. M. Hyman Download PDF EPUB FB2

Additional Physical Format: Online version: Hyman, D.M. (David M.). Review of the mechanisms of gas outbursts in coal. [Avondale, MD]: U.S. Dept. of the Interior. A REVIEW OF THE MECHANISMS OF GAS OUTBURSTS IN COAL By David M.

Hymanl Outbursts are sudden and violent releases of gas and coal that result from a complex function of geology, stress regime, and gas pressure and content. The Bureau of Mines has reviewed methods for prediction and. Coal Operators’ Conference The AusIMM Illawarra Branch 4 - 6 February STUDY OF THE MECHANIS MS OF COAL AND GAS OUTBURSTS USING A NEW NUMERICAL MODELING A PPROACH Xavier Choi 1 and Mike Wold 2 Abstract: During mining or roadway development, the distribution of stress and pore pressure in the coal face and rib around the new opening will change.

Outbursts are sudden and violent releases of gas and coal that result from a complex function of geology, stress regime, and gas pressure and content.

The Bureau of Mines has reviewed methods for prediction and mitigation of such outbursts in use worldwide as an aid in selecting the proper techniques for use in specific mine environments. PDF | OnYucang Wang and others published Chapter 6.

A Review on Numerical Models for Coal and Gas Outbursts | Find, read and cite all the research you need on ResearchGate. In order to determine the mechanism of the coal and gas outburst in the syncline, it should be analyzed from stress, the property of coal structure to the press and content of gas in the syncline.

@article{osti_, title = {Methods for predicting gas outbursts in salt and coal mines}, author = {Mahtab, A. and Wane, M. and Cruickshank, N.}, abstractNote = {Gas outbursts occur as sudden eruptions of gas and minerals from the face of a mine heading as the heading approaches potentially burst-prone (or anomalous) zones of rock.

Such outbursts have resulted in considerable damage to. Abstract: Coal and gas outburst is a frequent dynamic disaster during underground coal mining about years’ exploration, mechanism of outburst occurring is still an open question.

Novel aspects of four, including physicochemical and mechanical properties of outburst-prone coal, laboratory-scale outburst experiment and numerical modeling, mine-site investigations, and.

Novel aspects of stresses, gas and geological structure are integrated in a worldwide review of the problem of outbursts of coal and gas in coal mines. Based on a study of the literature and recent geological studies of outburst sites, geological structures have been identified as a prime factor in outburst by: Mlmng Science and Technology, 1 () Elsevier Science Publishers B.V., Amsterdam - Printed in The Netherlands A MECHANISM OF OUTBURSTS OF COAL AND GAS J.G.

Singh Department of Mining Engineering, Institute of Technology, Banaras Hindu University, Varanasi (India) (Received December 7, accepted February 1, ) ABSTRACT Rock and gas Cited by: Outburst management primarily focuses on the prevention of outbursts by pre-draining the gas from coal seams prior to mining.

The aim of gas drainage is to lower the gas content of the seam below a certain threshold value, at which time it is considered safe to mine the seam. The first book to present a unifying methodology for addressing problems such as outbursts and explosions of methane in coal mining, Physics of Coal and Mining Processes integrates theoretical and experimental research on coal and bearing rocks and examines the anthropogenic processes that occur during deep underground mining.

Coal and gas outbursts have been a major geological hazard to underground coal mining for over years and continue to cause serious problems in all over the world. In order to have a better understanding of the phenomenon, it is worthwhile making a historical review of the occurrences and a combat of the events.

Many investigations and researches have been done to characterize and Cited by: No doubt, the conditions existing in different coal fields are quite different and so also are the methods for mining coal, but basic studies on outbursts e.g., mechanisms, properties of coal, role of gases, prediction tech-niques and control methods used in other countries are.

A coal and gas outburst can lead to a catastrophic failure in a coal mine. These outbursts usually occur where the distribution of coal seam gas is abnormal, commonly in tectonic belts.

To study the effects of the abnormal distribution of this gas on outbursts, an experimental apparatus to collect data on simulated coal seam outbursts was by: Outbursts are sudden and violent releases of gas and coal that result from a complex function of geology, stress regime, and gas pressure and content.

The Bureau of Mines has reviewed methods for prediction and mitigation of such outbursts in use worldwide, as an aid in selecting the proper techniques for use in specific mine by: Underground Australian coal mines have a long and widespread history of instantaneous outbursts of coal and gas (outbursts).

Every gassy underground mine has a management plan to combat this hazard. Fundamental to outburst control is the notion that if the gas content is reduced to a low enough a level, an outburst will not occur regardless of.

Coal and gas outbursts are a complex process involving gas migration, coal failure and their interaction. Currently, a model synthesizing stress, coal gas, and coal physical and mechanical properties is widely used in qualitative descrip-tions of outburst conditions and processes.

To quantitativelyCited by: Apparatus and Procedure. Coal and gas outbursts with certain stress regimes, gas pressure, and materials property of samples are simulated by a coal and gas outburst simulation device consisting of fast-releasing components, a load bearing frame, electric self-controlled loading system, reversal unit, main frame bracket, and coal sample molding device as shown in Figure 1 [].Cited by: 6.

Coal Operators’ Conference Tribute to Dr Ripu Daman Lama 74 February The AusIMM Illawarra Branch OVERVIEW OF GAS OUTBURSTS AND UNUSUAL EMISSIONS Ripu Lama1 and A Saghafi2 Abstract: Gas and rock outbursts are unwanted complications of underground coal mining, which have occurred over the last years of underground coal mining worldwide and are still.

Outburst has been defined as a spontaneous ejection of gas and coal from the solid face, where the gas is a mixture of methane and carbon dioxide. This definition is questioned in the use of the term "spontaneous" as this suggests an outburst occurs without triggering, when an outburst can be provoked with the use of explosives or during the.Factors leading to coal and gas outbursts are complicated, and the accuracy of predicting outbursts remains difficult to achieve.

Therefore, coal and gas outburst risk are still a scientific challenge in the fields of mining, geology, safe engineering, and rock mechanics. Theories explaining and predicting coal and gas outbursts associated with restored strain and gas energy are hot topics.An outburst of coal and gas is a major hazard in underground coal mining.

It occurs when certain conditions of coal stress, strength and gassiness are met. Based mainly on field observations related to the conditions, a number of indices are used in prediction of the outburst.

Some of the indices are considered to be inadequate, inappropriate or impractical in some coal seam : Sheng Xue, Liang Yuan, Jun Xie, Yu Cang Wang.