Study on the Abutment Pressure and Advanced Support of Driving Roadway along Goaf of Isolated Mining Face

Li Li; An Bin Zhang; Chun Lei Zhang

doi:10.4028/www.scientific.net/AMR.941-944.2533

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 941-944Study on the Abutment Pressure and Advanced...

Study on the Abutment Pressure and Advanced Support of Driving Roadway along Goaf of Isolated Mining Face

Abstract:

WuTongZhuang No.182309 mining face is an isolated mining face. The abutment pressure is big and roadway deformation is severe due to driving roadway along goaf with short pillar remained. In view of these problems, taking WuTongZhuang No.182309 mining face as project background, the law of the abutment stress distribution was analyzed by use of numerical simulation software FLAC^3D and field measurement study. The results showed that the influence scope of the lead abutment pressure was about 55m , the peak value was about 6m ahead of the mining face and the stress concentration factor is 3.3.Based on the above study results, a scheme of advanced support was proposed which effectively controlled the roadway deformation and ensured the safety production of the mining face.

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Periodical:

Advanced Materials Research (Volumes 941-944)

Pages:

2533-2538

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.941-944.2533

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Online since:

June 2014

Authors:

Li Li*, An Bin Zhang, Chun Lei Zhang

Keywords:

Abutment Pressure, Advanced Support, Isolated Mining Face, Numerical Simulation

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