|Water Science and Engineering 2019, 12(3) 169-178 DOI: https://doi.org/10.1016/j.wse.2019.08.001 ISSN: 1674-2370 CN: 32-1785/TV|
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Numerical modeling of earthen dam breach due to piping failure
Sheng-shui Chen a, b, Qi-ming Zhong a, b, *, Guang-ze Shen c
a Department of Geotechnical Engineering, Nanjing Hydraulic Research Institute, Nanjing 210024, China
Based on model tests of earthen dam breach due to piping failure, a numerical model was developed. A key difference from previous research is the assumption that the cross-section of the pipe channel is an arch, with a rectangle at the bottom and a semicircle at the top before the collapse of the pipe roof, rather than a rectangular or circular cross-section. A shear stress-based erosion rate formula was utilized, and the arched pipe tunnel was assumed to enlarge along its length and width until the overlying soil could no longer maintain stability. Orifice flow and open channel flow were adopted to calculate the breach flow discharge for pressure and free surface flows, respectively. The collapse of the pipe roof was determined by comparing the weight of the overlying soil and the cohesion of the soil on the two sidewalls of the pipe. After the collapse, overtopping failure dominated, and the limit equilibrium method was adopted to estimate the stability of the breach slope when the water flow overtopped. In addition, incomplete and base erosion, as well as one- and two-sided breaches were taken into account. The USDA-ARS-HERU model test P1, with detailed measured data, was used as a case study, and two artificially filled earthen dam failure cases were studied to verify the model. Feedback analysis demonstrates that the proposed model can provide satisfactory results for modeling the breach flow discharge and breach development process. Sensitivity analysis shows that the soil erodibility and initial piping position significantly affect the prediction of the breach flow discharge. Furthermore, a comparison with a well-known numerical model shows that the proposed model performs better than the NWS BREACH model.
Earthen dam Piping failure Overtopping failure Breach flow Numerical modeling Sensitivity analysis
|Received 2018-12-20 Revised 2019-06-24 Online: 2019-09-30|
This work was supported by the National Key Research and Development Program of China (Grant No. 2017YFC0404805), the National Natural Science Foundation of China (Grants No. 51779153 and 51539006), the Central Public-interest Scientific Institution Basal Research Fund (Grant No. Y717012), and the Natural Science Foundation of Jiangsu Province (Grant No. BK20161121).
|Corresponding Authors: Qi-ming Zhong|
ASCE/EWRI Task Committee on Dam/Levee Breaching, 2011. Earthen embankment breaching. Journal of Hydraulic Engineering 137(12), 1549-1564. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000498.
Briaud, J.L., Ting, F.C.K., Chen, H.C., Cao, Y., Han, S.W., Kwak, K.W., 2001. Erosion function apparatus for scour rate prediction. Journal of Geotechnical and Geoenvironmental Engineering 127(2), 105-113. https://doi.org/10.1061/(ASCE)1090-0241(2001)127:2(105).
Chen, S.S., 2012. Breach Mechanism and Simulation of Breach Process for Earth-Rock Dams. China Water & Power Press, Beijing (in Chinese).
Costa, J.E., 1985. Floods from Dam Failures, Open-File Rep. No. 85-560. U.S. Geological Survey, Denver.
Dam Safety Management Center of the Ministry of Water Resources, P. R. China, 2019. Dam Breach Register Book of the National Reservoirs. Dam Safety Management Center of the Ministry of Water Resources, P. R. China, Nanjing (in Chinese).
D’Eliso, C., 2007. Breaching of Sea Dikes Initiated by Wave Overtopping: A Tiered and Modular Modeling Approach. Ph. D. Dissertation. University of Braunschweig and University of Florence, Florence.
Elkholy, M., Sharif, Y.A., Chaudhry, M.H., Imran, J., 2015. Effect of soil composition on piping erosion of earthen levees. Journal of Hydraulic Research 53(4), 1-10. https://doi.org/10.1080/00221686.2015.1026951.
Foster, G.R., Meyer, L.D., Onstad, C.A., 1977. An erosion equation derived from basic erosion principles. Transactions of the ASAE 20(4), 678-682. https://doi.org/10.13031/2013.35627.
Foster, M., Fell, R., Spannagle, M., 2000. The statistics of embankment dam failures and accidents. Canadian Geotechnical Journal 37(5), 1000-1024. https://doi.org/10.1139/t00-030.
Fread, D.L., 1984. DAMBREAK: The NWS Dam Break Flood Forecasting Model. National Weather Service, USA, Silver Spring.
Fread, D.L., 1988. BREACH: An Erosion Model for Earthen Dam Failure. National Weather Service, USA, Silver Spring.
Froehlich, D.C., 1995a. Embankment dam breach parameters revisited. In: Proceedings of the 1st International Conference on Water Resources Engineering, ASCE, New York.
Froehlich, D.C., 1995b. Peak outflow from breached embankment dam. Journal of Water Resources Planning and Management Division 121(1), 90-97. https://doi.org/10.1061/(ASCE)0733-9496(1995)121:1(90).
Hanson, G.J., Cook, K.R., 2004. Determination of material rate parameters for headcut migration of compacted earthen materials. In: Proceedings of Association of State Dam Safety Officials Annual Conference 2004. The Association of State Dam Safety Officials, Phoenix.
Hanson, G.J., Tejral, R.D., Hunt, S.L., Temple, D.M., 2010. Internal erosion and impact of erosion resistance. In: Proceedings of the 30th Annual United States Society on Dams (USSD) Conference, USSD, Sacramento.
Hassan, M.A.A.M., Morris, M.W., 2008. IMPACT Project Field Tests Data Analysis, FLOODsite Report T04-08-04. Wallingford.
Hoffmans, G., Van Rijn, L., 2018. Hydraulic approach for predicting piping in dikes. Journal of Hydraulic Research 56(2), 268-281. https://doi.org/10.1080/00221686.2017.1315747.
Hutchinson, D.L., 1972. Physics of Erosion of Cohesive Soils. Ph. D. Dissertation. University of Aukland, Aukland.
Justin, J.D., 1932. Earth Dam Projects. John Wiley & Sons, Inc., New York.
Mohamed, A.A.A., Samuels, P.G., Morris, M.W., Ghataora, G.S., 2002. Improving the accuracy of prediction of breach formation through embankment dams and flood embankments. In: Proceedings of International Conference on Fluvial Hydraulics, Louvain-la-Neuve.
Morris, M.W., Kortenhaus, A., Visser, P.J., 2009. Modelling Breach Initiation and Growth, FLOODsite Report T06-08-02. Wallingford.
Morris, M.W., 2011. Breaching of Earth Embankments and Dams. Ph. D. Dissertation. The Open University, London.
Richards, K.S., Reddy, K.R., 2007. Critical appraisal of piping phenomena in earth dams. Bulletin of Engineering Geology and the Environment 66(4), 381-402. https://doi.org/10.1007/s10064-007-0095-0.
Sharif, Y.A., Elkholy, M., Chaudhry, M.H., Imran, J., 2015. Experimental study on the piping erosion process in earthen embankments. Journal of Hydraulic Engineering 141(7), 04025012. https://doi.org/10.1061/(ASCE)HY.1943-7900.0001019.
Singh, V.P., 1996. Dam Breach Modeling Technology. Kluwer Academic Publishes, Dordrecht.
Temple, D.M., 1985. Stability of grass-lined channels following mowing. Transactions of the ASAE 28(3), 750-754. https://doi.org/10.13031/2013.32332.
Temple, D.M., Hanson, G.J., 1994. Headcut development in vegetated earth spillways. Applied Engineering in Agriculture, 10(5), 677-682. https://doi.org/10.13031/2013.25898.
U.S. Bureau of Reclamation (USBR). 1988. Downstream Hazard Classification Guidelines, ACER Technical Memorandum No. 11. USBR, Denver.
U.S. Department of Agriculture, Natural Resources Conservation Service (USDA-NRCS), 1997. Earth Spillway Erosion Model, Chapter 51, Part 628 Dams, National Engineering Handbook. USDA-NRCS, Washington, D.C.
Van Emelen, S., Zech, Y., Soares-Frazão, S., 2015. Impact of sediment transport formulations on breaching modelling. Journal of Hydraulic Research 53(1), 60-72. https://doi.org/10.1080/00221686.2014.939111.
Volz, C., Rousselot, P., Vetsch, D., Faeh, R., 2012. Numerical modelling of non-cohesive embankment breach with the dual-mesh approach. Journal of Hydraulic Research 50(6), 587-598. https://doi.org/10.1080/00221686.2012.732970.
Wahl, T.L., 1998. Prediction of Embankment Dam Breach Parameters: A Literature Review and Needs Assessment, Dam Safety Report No. DSO-98-004. USBR, Denver.
Wahl, T.L., Erdogan, Z., 2008. Erosion Indices of Soils Used in ARS Piping Breach Tests, Hydraulic Laboratory Report HL-2008-04. USBR, Denver.
Wan, C.F., Fell, R., 2004. Investigation of rate of erosion of soils in embankment dams. Journal of Geotechnical and Geoenvironmental Engineering130(4), 373-380. https://doi.org/10.1061/(ASCE)1090-0241(2004)130:4(373).
Wu, W.M., 2013. Simplified physically based model of earthen embankment breaching. Journal of Hydraulic Engineering 139(8), 837-851. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000741.
Xu, Y., Zhang, L.M., 2009. Breaching parameters for earth and rock-fill dams. Journal of Geotechnical and Geoenvironmental Engineering 135(12), 1957-1969. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000162.
Zhang, L.M., Xu, Y., Jia, J.S., 2009. Analysis of earth dam failures: A database approach. Georisk 3(3), 184-189. https:// doi.org/10.1080/17499510902831759.
Zhong, Q.M., Wu, W.M., Chen, S.S., Wang, M., 2016. Comparison of simplified physically based dam breach models. Natural Hazards 84(2), 1385-1418. https://doi.org/10.1007/s11069-016-2492-9.
Zhong, Q.M., Chen, S.S., Deng, Z., 2018. A simplified physically-based breach model for a high concrete-faced rockfill dam: A case study. Water Science and Engineering 11(1), 46-52. https://doi.org/10.1016/j.wse.2018.03.005.
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