Articles | Volume 19, issue 10
Nat. Hazards Earth Syst. Sci., 19, 2079–2095, 2019
https://doi.org/10.5194/nhess-19-2079-2019
Nat. Hazards Earth Syst. Sci., 19, 2079–2095, 2019
https://doi.org/10.5194/nhess-19-2079-2019

Research article 01 Oct 2019

Research article | 01 Oct 2019

Stability charts based on the finite element method for underground cavities in soft carbonate rocks: validation through case-study applications

Michele Perrotti et al.

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Cited articles

Andriani, G. F. and Walsh, N.: Petrophysical and mechanical properties of soft and porous building rocks used in apulian monuments (South Italy), Spec. Publ. 333, Geol. Soc., London, 129–141, 2010. 
Bonamini, M., Di Maggio, C., Lollino, P., Madonia, G., Parise, M., and Vattano, M.: Sprofondamenti di origine antropica nell'area di Marsala (Sicilia occidentale) analizzati mediante rilievi in sito e analisi numerica dei processi di instabilità nelle cave sotterranee, Mem. Descr. Carta Geol. d'It., 93, 105–120, 2013. 
Cai, M.: Practical estimates of tensile strength and Hoek–Brown strength parameter mi of brittle rocks, Rock Mech. Rock Eng., 43, 167–184, 2010. 
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Castellanza, R., Lollino, P., and Ciantia, M. O.: A methodological approach to assess the hazard of underground cavities subjected to environmental weathering, Tunnel. Undergr. Space Tech., 82, 278–292, https://doi.org/10.1016/j.tust.2018.08.041, 2018. 
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Based on stability charts proposed by Perrotti et al. (2018), preliminary assessment of stability/instability of underground quarries in soft carbonate rocks is discussed with reference to six case studies of underground artificial cavities, including three affected by sinkhole failures in the past and three in stable conditions at present. When underground quarries are suitably surveyed and mapped, a quantitative assessment of the stability conditions is possible.
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