The Theory and Practice of Forepoling Pre-Stressed System Bolt in Preventing the Rib Spalling

Hai Yuan Liu; Hou Sheng Jia; Long Fan; Bin Han

doi:10.4028/www.scientific.net/AMR.734-737.883

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 734-737The Theory and Practice of Forepoling Pre-Stressed...

The Theory and Practice of Forepoling Pre-Stressed System Bolt in Preventing the Rib Spalling

Abstract:

Based on the particularity of loose and broken of the surrounding rock of roadway, there will be rib spalling after excavating of roadway without support problem. Through analyzing for the specific reasons of the rib spalling, the theory of forepoling pre-stressed system and forepoling support project were put forward. The broken rock zone test in normal roadway support indicating that this technology can effectively prevent the rib spalling before and after digging, having good supporting effect and economic benefits.

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Periodical:

Advanced Materials Research (Volumes 734-737)

Pages:

883-887

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.734-737.883

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Online since:

August 2013

Authors:

Hai Yuan Liu, Hou Sheng Jia, Long Fan, Bin Han

Keywords:

Broken Rock Zone, Forepoling Pre-Stressed System, Rock Bolting, Unconsolidated and Fracture

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References

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