Fuzzy approach for preliminary design of weak rock slopes in lignite mines

Date

2018-02-01

Author

Yardımcı, Ahmet Güneş
Karpuz, Celal

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Rock slope failure modes are either driven by structurally controlled mechanisms (planar, wedge, or toppling failure) or lean upon the highly jointed or weak rock mass (circular failure). Developing practical tools for preliminary slope design is a popular topic among geotechnical society. This study proposes a practical methodology to predict a safe overall slope angle for weak rock slopes of lignite mines. Rock mass rating (RMR) and slope mass rating (SMR) classification systems can be remarkably misleading for weak rocks. Fuzzy modification was proven to improve rock and slope quality predictions. In addition, structurally controlled failures can be estimated more precisely. Later, a popular slope performance chart of Bieniawski that is based on RMR was modified by the fuzzy approach, and the computer models of a weak rock mass failure in a Turkish lignite mine are presented. The modified methodology was proven to be better suited to the weak rock conditions.

Subject Keywords

Geotechnical Engineering and Engineering Geology, General Engineering, General Earth and Planetary Sciences, Ocean Engineering, General Environmental Science

URI

https://hdl.handle.net/11511/38022

Journal

BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT

DOI

https://doi.org/10.1007/s10064-017-1022-7

Collections

Department of Mining Engineering, Article

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Citation Formats

A. G. Yardımcı and C. Karpuz, “Fuzzy approach for preliminary design of weak rock slopes in lignite mines,” BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, pp. 253–264, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38022.