PSI - Issue 13

Kostina A. et al. / Procedia Structural Integrity 13 (2018) 1273–1278 Author name / Structural Integrity Procedia 00 (2018) 000 – 000

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volumetric creep strain equals zero. However, in soils effects of dilatancy and compaction accompany the volumetric creep strain. Both process leads to increase of soil strength that could contribute to decrease of the creep deformation rate. Finally, for shaft sinking at large depths design parameters should be determined based on numerical modelling. For example, it was established that at depth 250 m the ice-soil cylinder with the wall thickness given by the Vaylov’s formula can satisfy the deformation criterion if its height is less than 0.5 m.

Acknowledgements

This research was supported by 17-11-01204 project (Russian Science Foundation).

References

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