Study on Coal Seam Mining Face Floor Failure under Imbalance High Water Pressure

Chun Jie Song; Cheng Fan; Li Song

doi:10.4028/www.scientific.net/AMR.919-921.758

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Study on Coal Seam Mining Face Floor Failure under Imbalance High Water Pressure
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Study on Expansion Properties Experimental of the Different Stratification Slates in Chongqing
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 919-921Study on Coal Seam Mining Face Floor Failure under...

Study on Coal Seam Mining Face Floor Failure under Imbalance High Water Pressure

Abstract:

According to the seam floor aquifer inhomogeneity,in order to analysis the coal deformation and failure law in pressurized water ,this paper established mechanical model of nonuniform pressure and fluidstructure interaction models,using numerical simulation software FLAC3D analysis fluidstructure interaction water inrush regularity .Analyzing the extent of damage from the coal seam floor, the stress and displacement when working face promote different distances, this paper carried out the basic rules of mining face water inrush. This study shows that by monitoring the position of bottom water inrush occurs easily, analyzing the influence of pore pressure by the mining ,it can be accurately analysis the risk of water inrush and play an important role in guiding prevention and control of water inrush.

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Periodical:

Advanced Materials Research (Volumes 919-921)

Pages:

758-761

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.919-921.758

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Online since:

April 2014

Authors:

Chun Jie Song, Cheng Fan*, Li Song

Keywords:

Failure Characteristics, Numerical Simulation, Pore Pressure, Water Inrush

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* - Corresponding Author

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