Field Test Study of the Blast-Resistance Performance of Optimal Composite Anchorage Structure

Lin Zhao; Xian Ming Zeng; Shi Min Li; Da Lu Lin

doi:10.4028/www.scientific.net/AMR.250-253.1474

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 250-253Field Test Study of the Blast-Resistance...

Field Test Study of the Blast-Resistance Performance of Optimal Composite Anchorage Structure

Abstract:

This paper introduced the comparison test of new optimal composite anchorage structure and single anchorage structure. The measured results show that the particle acceleration of single anchorage structure is 2.22 times higher than that of the optimal composite anchorage structure. The dynamic strain of the former is 5.3~4.5 times higher than that of the latter. The blast-resistance of the optimal composite anchorage structure is 5.10 times higher than that of the single anchorage structure. Under the limit damage condition, the former is 4.13~3.40 higher than that of the latter. The optimal composite anchorage structure has excellent blast-resistance. Optimal weakened zone is between the reinforced support structure and the surround rock. Under the explosion condition, weakened zone is firstly deformed, cracked, crushed or densified, and at the same time, a great deal of blast energy is absorbed. Therefore, the crisis of the reinforced support structure is transferred into the weakened zone.

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Periodical:

Advanced Materials Research (Volumes 250-253)

Pages:

1474-1477

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.250-253.1474

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Online since:

May 2011

Authors:

Lin Zhao, Xian Ming Zeng, Shi Min Li, Da Lu Lin

Keywords:

Blast Resistance, Field Test, Optimal Composite Anchorage Structure, Single Anchorage Structure

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References

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