Study on Methods of Exploring the Loosening Radius of Deep-Hole Controlling Blasting

Wen Qing Zhang; Jian Liu

doi:10.4028/www.scientific.net/AMR.734-737.650

Paper Titles

Risk Management of Induced Micro-Seismicity Caused by Hydraulic Fracturing through Acoustic Emission
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Statistical Analysis on Characteristics of Gas Emission in a Fully Mechanized Caving Face under Drainage Conditions
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Strata Behaviors of Fully-Mechanized Sublevel Caving Face Based on Similar Simulation Test
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Study on Fully-Mechanized Top Coal Caving Mining under Water Body with Shallow Overburden and Thin Bedrock
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Study on Methods of Exploring the Loosening Radius of Deep-Hole Controlling Blasting
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Study on Optimization Method of the Slope Angle Design for Open-Pit Mine
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Study on Pressure Relief Scope of Underlying Coal Rock with Upper Protective Layer Mining
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Study on Regulations of Coal Mining under Highway
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The Deformation and Failure Characteristics Research of the Roof Rocks in Anchorage Areas
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 734-737Study on Methods of Exploring the Loosening Radius...

Study on Methods of Exploring the Loosening Radius of Deep-Hole Controlling Blasting

Abstract:

Deep borehole controlling blasting is one of the most popular methods which used to improve permeability of low permeability and highly gassy coal seam. Proper interval between blasting hole is the critical factor. On this paper, the theory and insufficiency of each method are discussed by theoretical analysis and field investigation. The result shows that, because of the complexity of outburst coal seam, the measuring result got by different methods is relative and declinational. We need to make a right choice according to the actual demand. And the method of gas flow index is quickly, visual and reliable, which to be worth paying the utmost attention to.

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Periodical:

Advanced Materials Research (Volumes 734-737)

Pages:

650-655

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.734-737.650

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Online since:

August 2013

Authors:

Wen Qing Zhang, Jian Liu

Keywords:

Coal and Gas Outburst, Deep-Hole Controlling Blasting, Gas Drainage, Loosening Radius

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