Application of Numerical Methods to Geotechnical Problems: by Annamaria Cividini (eds.) PDF

By Annamaria Cividini (eds.)

ISBN-10: 321183141X

ISBN-13: 9783211831410

ISBN-10: 370912512X

ISBN-13: 9783709125120

The NUMGE98 convention introduced jointly senior and younger researchers, scientists and working towards engineers from ecu and in another country nations, to proportion their wisdom and adventure at the quite a few elements of the research of Geotechnical difficulties via Numerical equipment. The papers handle a vast spectrum of geotechnical difficulties, together with tunnels and underground openings, shallow and deep foundations, slope balance, seepage and consolidation, partly 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

Example text

The resulting movements at the surface are: x ( 2 J 1-x s (x)=-t::a 22 - - - l+p -x h I+x 2 1+x 2 s (x)= z xJ (35) 2 -1- ( 1+p-1- 2 t::a 2 2 h I+x 1+x2 where p=81e is the relative tunnel ovalization (3). For p=O, the tunnel cavity contracts horizontally and vertically by the same amount (no ovalization), and expression (35) 20 C. Sagaseta reduces to (33). The horizontal convergence is less than the vertical one for p>O, and becomes negative (the tunnel expands horizontally) for p> 1. The transversal settlement troughs given by (33) are wider than usually measured in attual cases (Schmidt, 1988; Sagaseta, 1988).

Geotechnique 38:4,647-649. M. Sanchez-Alciturri, C. Gonzalez, A. L6pez, P. Gomez and R. Pina (1999). Soil deformations due to the excavation of two parallel underground caverns. Proc. 12th Eur. Conf. Soil Mech. Found. Engg. Amsterdam. In press. Schmidt, B. (1969). Settlements and ground movements associated with tunnelling in soil. D. Thesis. Univ. of Illinois. Schmidt, B. (1988). Discussion. Geotechnique 38:4,647. O. and C. Sagaseta (1989). Selection of parameters for underground construction.

GRIFFITHS (I998). , John Wiley, Chichester. 1. 31 A. Aalto, R. Rekonen and M. Lojander Helsinki University of Technology, Espoo, Fjrlland ABSTRACT: The Finnish National Road Administration has organised an international competition to calculate the behaviour of the Haarajoki test embankment. This paper concentrates on calculations with the fmite element program PLAXIS. The evaluation of the calculation parameters is discussed. The main interest is put on preconsolidation pressure and the Poisson's ratio.

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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 by Annamaria Cividini (eds.)


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