By Annamaria Cividini (eds.)
The NUMGE98 convention introduced jointly senior and younger researchers, scientists and training engineers from ecu and in a foreign country international locations, to percentage their wisdom and adventure at the a number of features of the research of Geotechnical difficulties via Numerical tools. The papers handle a wide spectrum of geotechnical difficulties, together with tunnels and underground openings, shallow and deep foundations, slope balance, seepage and consolidation, in part saturated soils, geothermal results, constitutive modelling, etc.
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Additional resources for Application of Numerical Methods to Geotechnical Problems: Proceedings of the Fourth European Conference on Numerical Methods in Geotechnical Engineering Numge98 udine, Italy October 14–16, 1998
The calculated and measured values after 9 months are compared in figure 8. , Q> Cl ·--t---··I --··--20 _J_ , Figure 8. The Haarajoki test embankment. The calculated and measured horizontal movements of the soil layers at a) 9 and b) 4 meters from the centreline of the embankment. 4. CONCLUSIONS The curves of calculated and measured settlements at centreline during 9 months coincide together very welL However the shape of the measured curve seems to be steeper than calculated curve and the real settlements could probable be continued over calculated 46 A.
After the first calculations the permeabilities and preconsolidation pressures have been reevaluated. The first permeability values were calculated directly from the oedometer consolidation coefficient values, but after some corrections they were multiplied by 5 and the new values are shown in table 1. 31 Water conlont [%) o oo eo 20 40 Clay con toni[%) 100 120 ot& ~ •" If~ l;o a ~I. I w::::l;I " OPolrlt 14 16 "' 10 12 20 40 6 .. 18 20 oo eo ~- 10 ' 0 50 0 "" . a I 10 12 1-f- r- ... --+ . 10 12 C!
N . 0 600 a) Failure zone, M-C calculation b) Failure zone, M-D calculation Fig. 9%) We can observe that the M-C computed vertical displacement field (Fig. 11) as well as the vertical surface displacement profiles (Fig. 12) are broader (and closer than experiment) than the M-D ones. I. Al Abram, D. Dias et al. 0 a) experiment c) M-D calculation b) M-C calculation Fig. §. M-C calculation ~ ~ .. Q. i5 .. 5 -750 -250 250 750 1250 · X(mm) Fig. 12:Vertical surface displacement profile, end of increasing phase Experiment, M-C and M-D calculation 5.