Estimation of lining thickness around circular shafts

Date

2001-06-22

Author

Ozturk, H
Unal, E

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In this paper, the broken zone developing, around a circular mine shafts and lining pressure is estimated by integrating the results of numerical analysis and the "rock-load height" equation derived from empirical analysis. During numerical modelling studies, the computer program FLAC(2D) was utilized. In order to estimate equivalent Mohr failure Envelope from the generalised Hoek Brown failure criterion, a new FISH function was written within FLAC(2D). Parametric studies were carried out by considering mRMR (modified Rock Mass Rating) values, depth from surface, shaft diameter, ratio of horizontal principal-stresses and uniaxial compressive strength of intact rock. Finally, the computer program, "SHAFT" was also introduced. This program simplifies the lengthy and complex process of shaft-lining design.

Subject Keywords

Strength

URI

https://hdl.handle.net/11511/64446

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Department of Mining Engineering, Conference / Seminar

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Citation Formats

H. Ozturk and E. Unal, “Estimation of lining thickness around circular shafts,” 2001, p. 437, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/64446.