Evaluation of liquefaction potential for loose minefill slopes

• Autorzy: Kudella P.
• Języki publikacji: EN

Abstrakty

EN

Uncompacted embankments of certain fine sands exhibit a spontaneous liquefaction potential, which cannot be evaluated basing on undrained shear strength alone. A novel procedure for stability analysis has been developed, basing on Hill's stability criterion and a hypoplastic constitutive law. With given relative densities, assumed initial stress states and variations of perturbation directions, stability or instability of slope sections can be assessed. Catastrophic landslides observed in the past could thus be explained.

Słowa kluczowe

EN

liquefaction; granular materials; hypoplasticity; instability; failure

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2000
• Tom: Vol. 4, No 3
• Strony: 439--452
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Kudella P.

• Institute for Soil Mechanics and Rock Mechanics, University of Karlsruhe, Enger-Bunte-Ring, D-76128 Karlsruhe, Germany

Bibliografia

• [1] Cudmani R. and Osinov V., The cavity expansion problem for the interpretation of cone penetration amipressiometer tests, submitted to Can. Geotechn. Journal. 1999
• [2] Doanli T., Ibraim E., Dibujet Ph. and Matiotti R.. Static liquefaction: performances and limitations Of two advanced elastoplasticity models of loose, Nm. Methods in Geomcchanics, eds: Pietruszcak and Pandc, Balkema, 1997
• [3] Drucker D. C.. On the postulate of stability of material in the mechanics ofcontina. Journal dc Mechanique 3,236, 1964
• [4] Gudehus G., Spontaneous liquefaction of saturated granular bodies. Modem approaches to plasticity, ed: Kolymbas, Elsevier, Amsterdam, pp. 691-714, 1993
• [5] Gudehus G., A comprehensive concept for non-saturated granular bodies. Unsaturated Soils, eds. Alonso and Delage, Balkema, 1995
• [6] Gudehus G., A comprehensive constitutive equation for granular materials. Soils and Foundations 36, 1, 1996
• [7] Merle I., Hypoplastizitdt und Granlomelrie einfacher Korngeriiste, PhD thesis, VerofTentlichungen des IBF der Universitat Karlsruhe, 142, 1997
• [8] Herle F, Wehr W. and Gudehus G., Influence of macrovoids on sand behaviour, 2nd hit. Conf. on Unsaturated Soils, Beijing, 1998
• [9] Hill A., A general theory of uniqueness and stability in elastic-plastic solids, Journ. Mech. Phys. Solids 6, 36, 1958
• [10] Ishihara K., Liquefaction and flow failure during earthquakes, Geotechniquc 43, 351, 1993
• [11] Kezdi A., Earth pressure theories. Springer press Bcrlin-Gottingen-Flcidelbcrg, 1962
• [12] Kudella, P., Stabilitcitsberechnng von setiungsfliessfigefcihrdeten Kippenrandboschungen. Geotechnik 19, 7, 1995
• [13] Lade P. V., Static instability and liquefaction of loose fine sandy slopes. Journal of Geotechnical Engineering 118, 1992
• [14] Niibel K. and Karcher C'h., FE simulations of granular material with a given frequency distribution of voids as initial condition. Granular Matter 1, 105, 1998
• [15] Poulos S. J., Castro G. and France J. W., Liquefaction evaluation procedure. Journal ofGeot. Eng. Div. ASCE 111, 772. 1985
• [16] Raju V. and Gudehus G., Compaction of loose sand deposits using blasting. In Proc. XIIIICSMFF, New Delhi, 1145,1994
• [17] Raju V., Spontane Verfliissigung lockerer graitJarer Kdrper — Phanomene, Ursachen, Venneidung, PhD thesis, Veroffentlichungcn des IBF der Universitiit Karlsruhe, 134, 1994
• [18] Sladen J., d’Hollander R. and Krahn J.. The liquefaction of sands, a collapse surface approach, Canadian Geotechnical Journal 22, 564, 1985
• [19] Wannbold U. and Vogt A., Geotechnische Prohlemc und technische Mdgliclikeiten der Sanierung und Sicherung setzungsfUessfigcfdhrdeter Kippen und Restlochhoschungen in der Niederlausitz, Surface Mining 7, 22, 1994
• [20] Wchr W„ Cudmani R., Stein U. and Bosingcr, E., CPT, shear wave propagation and freeze probing to estimate the void ratio in loose sands, Int. Symp. on Cone Penetration Testing, Linkoping 2,351, 1995
• [21] von WolffcrsdorfT P. A., A hypoplastic relation for granular materials with a predefined limit state surface, Mechanics of Cohesive-Frictional Materials 1,251, 1996