Influencing Factor Analysis on Non-Mining Fracturing of Shaft Lining in Thick Topsoil Layer

Zhe Qin; Hai Bin Jia; Hai Long Kong

doi:10.4028/www.scientific.net/AMR.838-841.667

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 838-841Influencing Factor Analysis on Non-Mining...

Influencing Factor Analysis on Non-Mining Fracturing of Shaft Lining in Thick Topsoil Layer

Abstract:

Non-mining fracturing of shaft lining is a special mine geological disaster in Huadong thick alluvium Mining Districts, which is mainly induced by the additional stress result from compressive deformation of the bottom aquifer water loss. On the basis of summarizing the geological conditions and failure characteristics of non-mining fracturing of shaft lining, this paper analyses the size and variation with different influencing factors of additional stress in outer wall through establishing 3-D numerical modeling. The relationship between stress condition of non-mining fracturing of shaft lining and head loss of bottom water-bearing stratum is determined using the classic elastic solution to thick-walled cylinder according to the proceeding modeling results; and the head loss of bottom water-bearing stratum corresponding to the failure limit state of pitshaft damage is obtained.

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Periodical:

Advanced Materials Research (Volumes 838-841)

Pages:

667-670

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.838-841.667

Citation:

Cite this paper

Online since:

November 2013

Authors:

Zhe Qin*, Hai Bin Jia, Hai Long Kong

Keywords:

Failure Prediction, Influencing Factor, Non-Mining Damage, Numerical Simulation, Pitshaft

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References

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