The Test Study on Fracture Mechanism and Reinforcement Pattern of Backfill Roof under High Stress

Xiao Jun Wang; Kui Zhao; Qiang Lei

doi:10.4028/www.scientific.net/AMR.243-249.5041

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 243-249The Test Study on Fracture Mechanism and...

The Test Study on Fracture Mechanism and Reinforcement Pattern of Backfill Roof under High Stress

Abstract:

The roof is cemented backfill in underhand drift cut-and-filling stopping, stability of cemented fills is the key to safety of mining. Through numerical simulation test, simply supported beams subjected to uniform was considered mechanical model of backfill roof. and failure modes of backfill roof was found through physical modeling experiment. The results show that the failure of backfill roof is first happening from the center at the bottom of backfill, the final result is that falling arch. Based on the the result of the experiment, finally, The reasonable reinforcement pattern was proposed to avoid failure of backfill roof.

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Periodical:

Advanced Materials Research (Volumes 243-249)

Pages:

5041-5047

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.243-249.5041

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Online since:

May 2011

Authors:

Xiao Jun Wang, Kui Zhao, Qiang Lei

Keywords:

Cemented Fill, Falling Arch, Fracture Machanism, Reinforced Pattern

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References

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