ROCK STRESSES, ROCK STRENGTHS AND SPALLING PREDICTION
To predict rock spalling around an underground excavation, a knowledge of the rock strength and the in situ rock stress state is required. Both these parameters usually show considerable variation at any given site, and therefore a methodology is required that captures this variation. In this paper, we combine recent research into the ratios between the magnitudes of the principal stresses and a fuzzy mathematics approach to rock parameter uncertainty to provide a methodology for approaching rock spalling bursting estimation for rock engineering design. We present the effect of uncertainties in rock strength and in situ stress on the susceptibility to spalling in such a way that site investigation resources may be more effectively utilised.
JOHN A.HUDSON JOHN P.HARRISON
Earth Sciences and Engineering Imperial College, South Kensington, London SW7 2AZ, UK
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
47-54
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）