The Applied Research of Loose Blasting Technique in Managing Crushing Accident of Fully Mechanized Coal Mining Face

Jian Wen Wang

doi:10.4028/www.scientific.net/AMR.734-737.863

Paper Titles

Study on the Principal of Ground Pressure within the Top Irregularly Damaged Zone in Working Face
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Study on Top Slice Irregular Destroyed Areas of Spatial Exploration Location and Mining Method
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Test Study of Water-Resisting Ability of Coal Seam Floor Rock Mass
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The Affection of Ke of Coal Seam on Strata Behavior
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The Applied Research of Loose Blasting Technique in Managing Crushing Accident of Fully Mechanized Coal Mining Face
p.863

The Beneficiaries under the Current Pricing System of Global Mines
p.868

The Research on the Evaluation and Warning Model of Mining Industries' Security
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The Theory and Practice of Forepoling Pre-Stressed System Bolt in Preventing the Rib Spalling
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Water Probe in Coal Mine Working Face
p.888

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 734-737The Applied Research of Loose Blasting Technique...

The Applied Research of Loose Blasting Technique in Managing Crushing Accident of Fully Mechanized Coal Mining Face

Abstract:

Support crushing accidents occur frequently in coal mines, which have a serious impact on their safety production. Usually people adopt the loose blasting technology for processing the pressing frame accidents, that is, using the detonative action generated by explosives to cause the rock mass particles vibration which would spread in the form of stress wave to crush the surrounding rock mass. After the release of the rock mass internal stress, the hydraulic support would make use of its own abutment pressure to prop up again the overlying rock and make it work normally. Based on the research of detonative action and making use of FLAC3D numerical simulation technology, this paper provides a theoretical basis as well as the experience for handling the pressing frame accidents by applying a dynamic load test to theoretically calculate the appropriate explosive amount.

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Periodical:

Advanced Materials Research (Volumes 734-737)

Pages:

863-867

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.734-737.863

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Online since:

August 2013

Authors:

Jian Wen Wang

Keywords:

Hydraulic Support Pushed Down, Loose Blasting, Numerical Simulation, Treatment Method

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References

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