Abstract
Based on the background of Goupitan Hydropower Project high slope to research saturated-unsaturated seepage problems under atomized rain. Firstly, influence factor of flood discharge atomization is analyzed, the rainfall intensity and distribution of flood discharge atomization is researched by fuzzy mathematics, using the measured data, and a membership function of flood discharge atomization is built on the basis of statistical analysis and expertise, and then forecast the rainfall intensity and range by the fuzzy comprehensive judge. Secondly, According to the control equation of saturated-unsaturated state, the integral saturated-unsaturated unsteady seepage control equation is constituted on the connection of saturation degree. The FEM computation format of mathematic model is deduced by Galerkin weighing margin method, the compute iterate mode of nonlinear FEM is developed, and the three dimensional FEM program of computing saturated-unsaturated unsteady seepage under ground seepage condition by FORTRAN language, the solving technical methods and convergence speed are improved. At last, based on the slope geological characteristics, the slope geological model and calculation model are building, the saturated-unsaturated seepage field under ground seepage condition for the high rocky slope is simulated, and the result could provide important scientific references for seepage control measures and safety estimate in Hydropower Project.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Pruess K, Faybishenko B, Bodvarsson GS (1999). Alternative concepts and approaches for modeling flow and transport in thick unsaturated zones of fractured rocks Journal of Contaminant Hydrology 38:281–322.
Flint LE, Flint AL, Hevesi JA (1993). Shallow infiltration processes in arid watersheds at Yucca Mountain, Ncvada. In: Fifth International High Level Radioactive Waste Management Conference, Las Vegas, Nev., MA Proceedings. La Grange Park, III: American Nuclear Society: 2315–2322.
Dragila MI & Wheatcraft SW (2001). Free-surface films: CGER, Conceptual Models of Flow and Transport in the Fractured Vadose Zone. Washington, D.C.: National Academy Press 217–242.
Tokunaga TK & Wan J (1997). Water film flow along fracture surfaces of porous rock. Water Resources Research 33(6): 1287–1295.
Liu SH & Liang ZC (2001). Prediction and prevention of atomized flow in hydroelectric engineering. Engineering Journal of Wuhan University, 34(3):1–5 (in Chinese).
Su JM & Li HR (2002). The effects of atomization by flood discharge on downstream slope of Ertan hydroelectric station. Hydrogeology and Engineering Geology (2):22–25.
Sun SK & Liu ZP (2003). Longitudinal range of atomized flow forming by discharge of spillways and outlet works in hydropower stations. Shuili Xuebao. (12): 53–59 (in Chinese).
Zhang H, Lian JJ, Wang SD (2003). Numerical calculation of over flow atomization for Wantang Hydropower Station. Shuili Xuebao (4): 8–15(in Chinese).
Wang HL (2006). Stability study on saturated— unsaturated fracture rock slope under atomized rain of high dam. Ph.D. Thesis, Hohai university. Nanjing, China.
Changjiang Water Resources Committee (2001). Wujiang Goupitan Hydropower Station feasibility study report for the third fascicule-engineering geology. Ministry of water resources Changjiang Water Resources Committee.
Song HC, Xu WY, Shao JF, Xu RC (2002). Stability analysis of unsaturated soil slope under atomized rain. Journal of Hohai University 30(6): 16–21(in Chinese).
Gray WG & Hassanizadeh SM (1991a). Paradoxes and realities in unsaturated flow theory. Water Resources Research. 27(8): 1847–1854.
Pruess K (1999). A mechanistic model for water seepage through thick unsaturated zones in fractured rocks of low matrix permeability. Water Resources Research 34(4): 1039–1051.
Zhang YT (2004). The theory and application of rock hydraulics. Chinese rock mechanics and engineering century achievements. Hohai university press: 278–303 (in Chinese).
Mao CX, Duan XB, Li ZY (1999). Numerical computation in seepage flow and programs application. Hohai university press (in Chinese).
Panda BB & Kulailake PHSW (1999a). Influence of discontinuity geometry parameters and transmissivity on hydraulic behavior of discontinuous rock. J. of Engrg. Mech., 125(1): 41–50.
Panda BB & Kulailake PHSW (1999b). Relations between fracture tensor parameters and permeability tensor parameters for discontinuous rock. J. of Engrg. Mech., 125(1): 51–59.
Zhang JF, Xu CM, Wang MX (2001). Seepage parameters of the completely weathered granite at the Three Gorges dam site. Journal of Rock Mechanics and Engineering 20(5): 705–709 (in Chinese).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Zhejiang University Press, Hangzhou and Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Wang, HL., Xu, WY. (2010). The Three-Dimension Saturated-Unsaturated Seepage Analysis Under Atomized Rain Of Hydropower Project With High Slope. In: Chen, Y., Zhan, L., Tang, X. (eds) Advances in Environmental Geotechnics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04460-1_40
Download citation
DOI: https://doi.org/10.1007/978-3-642-04460-1_40
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-04459-5
Online ISBN: 978-3-642-04460-1
eBook Packages: EngineeringEngineering (R0)