The Mechanics Experimental Study of the Artificially Frozen Soil in Cretaceous Strata

Abstract:

Through the large number uniaxial strength tests and the creep test tests of the artificially frozen soil of Cretaceous strata, we obtained that the frozen wall in Cretaceous strata met the Moore - Coulomb strength criterion, and the artificially frozen soil strength increased from 6.5MPa in -5 °C to 12.0MPa in -15 °Cwith the freezing temperature decreased, Poisson's ratio from 0.35 down to -5 °C -15 °C at 0.18. Using viscoelastic-plastic theory we got the deep frozen wall strength and thickness of the Bojiang - Haizi mine in Cretaceous strata, practice showed that: the design approach in this paper was reasonable.

• Periodical: Applied Mechanics and Materials (Volumes 94-96)
• Pages: 1844-1847
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.94-96.1844
• Online since: September 2011
• Authors: Hao Cui, Dong Wei Li, Ren He Wang
• Keywords: Creep Test, Cretaceous Strata, Deep Shaft, Frozen Wall, Moore-Coulomb, Strength Criterion

References

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