期刊
JOURNAL OF HYDROLOGY
卷 533, 期 -, 页码 403-411出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhydrol.2015.12.034
关键词
Weak form quadrature element method; Unconfined seepage; Exit point; Earth dam
It remains challenging to determine the unknown free surface in three dimensional unconfined seepage in earth dams. A number of iterations are frequently required which make the problem computationally expensive. In the present research, a weak form quadrature element formulation is presented for three dimensional analysis of unconfined seepage which is an extension of the recently established method for two dimensional seepage problems. Free points are introduced by the interpolation of which the free surfaces are smoothly approximated. Grid lines are constructed in the element and the free points are confined to the lines when updated. An interpolatory scheme for locating the exit points is proposed. Formulations and procedures of the method are given in detail. Results of numerical examples are compared with available analytical solutions and numerical solutions in the literature and agreement is reached demonstrating the efficiency and reliability of the present formulation. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据