A methodology for the adaptive FEM analysis of two-dimensional seepage problems with free surface has been proposed. The methodology is based on three main aspects: (1) the advancing-front quadrilateral mesh generatio...A methodology for the adaptive FEM analysis of two-dimensional seepage problems with free surface has been proposed. The methodology is based on three main aspects: (1) the advancing-front quadrilateral mesh generation technique, (2) the FEM analysis of the seepage problems with free surface, (3) a posteriori error estimator and refined mesh size estimator. An example of embankment dam with toe drain was studied.展开更多
Unconfined seepage field of arch dam abutment slope was studied. This paper is composed of two parts. The first part concerns with the numerical methods used in the analysis, which includes the identification of rock ...Unconfined seepage field of arch dam abutment slope was studied. This paper is composed of two parts. The first part concerns with the numerical methods used in the analysis, which includes the identification of rock blocky system and the algorithm of the unconfined seepage flow in the discontinuity network with the consideration of the grouting curtain and drainage curtain. In the second part a complicated arch dam abutment slope was studied, for which the seepage flow field characteristics was analyzed and the seepage control system was evaluated.展开更多
文摘A methodology for the adaptive FEM analysis of two-dimensional seepage problems with free surface has been proposed. The methodology is based on three main aspects: (1) the advancing-front quadrilateral mesh generation technique, (2) the FEM analysis of the seepage problems with free surface, (3) a posteriori error estimator and refined mesh size estimator. An example of embankment dam with toe drain was studied.
基金Project supported by the National Natural Science Foundation of China.( No.599790 2 1 )
文摘Unconfined seepage field of arch dam abutment slope was studied. This paper is composed of two parts. The first part concerns with the numerical methods used in the analysis, which includes the identification of rock blocky system and the algorithm of the unconfined seepage flow in the discontinuity network with the consideration of the grouting curtain and drainage curtain. In the second part a complicated arch dam abutment slope was studied, for which the seepage flow field characteristics was analyzed and the seepage control system was evaluated.
