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Analysis of gravity dam on a complicated rock foundation using an adaptive block element method

type de publication      article in an international journal with refereeing comitee
date de publication 2004
auteur(s) Chen Sheng-hong; Li Yong-ming; Wang Wei-ming; Shahrour Isam
journal (abréviation) Journal of Geotechnical and Geoenvironmental Engineering (J. Geotech. and Geoenvir. Engrg.)
volume (numéro) 130 (7)
pages 759 – 763
résumé In this Technical Note, the adaptive block element method of rock masses is formulated, in which the elastoplastic characteristics of both rock blocks and discontinuities are taken into account. The concept of an overlay element is illustrated first; then the displacement fields of rock blocks are expressed as functions of so-called general degree of freedoms using the shape functions of the hierarchical finite element method; the governing equations of the rock block system are deduced on the basis of the virtual work principle; and the p-version adaptive algorithm based on the energy norm error estimation of each block element is proposed. The method is applied to the deformation and stability study of a gravity dam, and the parallel laboratory physical test is used to check the validity and ability of the method.
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