Dynamic Simulation of Sluice Foundation Piping Using Variable Grid Method

Abstract:

The occurrence of underground piping is a pluralistic and complex problem. Due to the great difficulty of the 3D dynamic simulation of piping both by theoretical and numerical analysis, currently there is no satisfactory mathematical model and numerical analysis software for it. In order to simulate the piping development process of sluice or dike foundation, in this paper, the 3D steady-unsteady saturated-unsaturated FEM seepage simulation method is used, and the concepts of destroyed element and variable grid method are introduced. The destroyed elements are removed from the original grid during the iterative calculation process, and the corresponding procedure for the 3D steady-unsteady piping process of sluice foundation is designed. Using appropriate post-processing program, the whole piping development of a sluice foundation can be displayed. A piping test of a sluice foundation model is simulated by the method provided in this paper. For the comparison of the experimental result and the simulation result, they showed very good agreement, which can verify the correctness of the piping simulation and programming methods given in this paper.

• Periodical: Advanced Materials Research (Volumes 446-449)
• Pages: 900-905
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.446-449.900
• Online since: January 2012
• Authors: Xiao Yue Zhang, Jun Yan
• Keywords: Damaged Element, Finite Element Method (FEM), Piping, Sluice Foundation, Variable Grid Method

References

[1] P.C. Li: Groundwater Dynamics (Agriculture Press, Beijin 1993).

[2] N.N. Ermakova and A.V. Mulina. Power Technology and Engineering Vol. 39(2005), pp.131-134

[3] X.J. Zhou, Y.X. Jie and G.X. Li. Chinese Journal of Hydroelectric Engineering Vol. 30(2011), pp.100-106

[4] V.N. Averyanov and S.G. Voronin. Power Technology and Engineering Vol. 43(2009), pp.292-295

[5] R. Stelzer and G. Hofstetter. Computers and Geotechnics Vol. 32(2005), pp.458-481

[6] B.B You and C.Y. Zhou. Acta Scientiarum Naturalium Universitat Is Sunyatseni Vol. 49(2010), pp.42-48

[7] B. Albers. Proceedings of the 1st International Conference on Long Term Effects and Seepage Behavior of Dams. Nanjing: Hohai University Press (2008), pp.203-213

[8] Y.X. Jie, W.J. Dong and X.D. Fu. Chinese Journal of Geotechnical Engineering Vol. 33(2011), pp.215-219

[9] G.Q. Tang, A.R. Kovscek. Transport in Porous Media Vol. 65(2006), pp.287-307

[10] Q.L. Yao, L.Q. Ding and D.G. Sun. Chinese Journal of Water Resources and Hydropower Engineering Vol. 38(2007), pp.13-18