- Title
- Effect of sampling interval on the output statistics of large 3D discontinuity surfaces generated by a multiscale random field model
- Creator
- Jeffery, M.; Huang, J.; Fityus, S.; Giacomini, A.; Buzzi, O.
- Relation
- IOP Conference Series: Earth and Environmental Science. Proceedings of the EUROCK 2021 Mechanics and Rock Engineering from Theory to Practice, Volume 833 (Turin, Italy 20-25 September, 2021) p. 1-8
- Relation
- ARC.DP190101558 http://purl.org/au-research/grants/arc/DP190101558
- Publisher Link
- http://dx.doi.org/10.1088/1755-1315/833/1/012045
- Publisher
- Institute of Physics (IOP)
- Resource Type
- conference paper
- Date
- 2021
- Description
- The scale effect is known to hinder reliable shear strength estimation of large-scale discontinuities. Recently, a stochastic approach was proposed to predict shear strength of large discontinuities directly at problem scale, thereby bypassing the scale effect. One aspect of the stochastic approach seeks to use the available roughness information from the 1D profile of a discontinuity to create a series of statistically representative 3D synthetic rock surfaces, via a rigorous random field model. The application procedure for producing such synthetic surfaces was validated at small scale; however, preliminary large-scale applications were not quite satisfactory. It was found that the absence of consideration for the multiscale nature of discontinuity roughness contributed to the issues encountered. This paper presents the details of the revised multiscale-based 2D LAS approach for producing representative large-scale synthetic surfaces with an emphasis on the effect of sampling interval, called segment length, on the statistics of the synthetic surfaces.
- Subject
- scale effect; stochastic approach; synthetic surfaces; segment length
- Identifier
- http://hdl.handle.net/1959.13/1437311
- Identifier
- uon:40308
- Identifier
- ISSN:1755-1307
- Language
- eng
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