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Optimisation de l'utilisation des explosifs en génie civil

Abstract : This thesis is a contribution to the comprehension of the complex phenomena during the rock blasting, in order to get an optimal design. In the first part, we give a synthesis of the numerical models based on the detonation theory, in the second part, we focuse on the modelling of the dynamic behaviours of rocks. An new elastic with anisotropic damage model is proposed and implemented in a dynamic explicit code RADIOSS, the simulations of the blasts with different problems (2-D, 3-D, detonation/structure) are presented. In the last part, we show a new approach for the optimization. The knowledge about the mechanism of the rock fragmentation is developed, especially on the influences of certain design parameters. The examples of the generation of the specific rules by automatic learning show the efficiency of this approach. The example of the optimization by coupling the genetic algorithms with automatic learning show the capacity and the perspective.
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Submitted on : Monday, October 25, 2010 - 2:54:55 PM
Last modification on : Wednesday, November 17, 2021 - 12:28:11 PM
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  • HAL Id : tel-00529371, version 1


Qiang Zeng. Optimisation de l'utilisation des explosifs en génie civil. Mécanique []. Ecole Nationale des Ponts et Chaussées, 1995. Français. ⟨tel-00529371⟩



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