Roadway Stability and Determination of the Critical Value of Roof Abscission Layer

Jian Quan Tang; Xian Yin Qi

doi:10.4028/www.scientific.net/AMM.446-447.1466

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 446-447Roadway Stability and Determination of the...

Roadway Stability and Determination of the Critical Value of Roof Abscission Layer

Abstract:

In condition of extraction roadway with existing bolt support at Zhao Lou coal mine as the object, the substantial function and evolution mechanism of anchor rod and anchorage structure are studied by using a variety of means; perfected suggestions about roof separation indicator are put forward; the separation phenomenon and the bolt support structure interaction state and the correlation of roadway stability are researched; method of determination of the critical value of roof separation are put forward and the criterion of the bolting structure failure and surrounding rock losing stability of roadway with the bed-separation volume as the main indicator are provides the basis for.

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Periodical:

Applied Mechanics and Materials (Volumes 446-447)

Pages:

1466-1471

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.446-447.1466

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Online since:

November 2013

Authors:

Jian Quan Tang, Xian Yin Qi

Keywords:

Critical Value, Instability, Roof Abscission Layer, Stability

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References

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