Experimental Study on Zhenshui Sand Bar and its Treatment in Xiaolangdi Reservoir

Abstract:

Zhenshui is the biggest tributary of Xiaolangdi Reservoir and its original storage capacity is 1.767 billion m3. By October 2010, the amount of sediment in Zhenshui reached 0.1691 billion m3, and the sand bar at Zhenshui estuary was 7m in height. Influenced by operational mode of reservoir and terrain, the formation of sand bar has certain inevitabilities. The sand bar can prevent water and sediment exchange between mainstream and tributary, and the internal storage capacity of tributary is not effectively used. The experimental result shows that during the later sediment retaining period, some small reservoirs can be built at the end of Zhenshui. By restoring water during the high water level in non-flood season in these small reservoirs and discharging flow during the low water level in flood season to scour sand bar, the tributary and main channel in Xiaolangdi Reservoir can be linked up in long term, service efficiency and life of tributary storage can be increased.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 2318-2323
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.2318
• Online since: October 2012
• Authors: Ting Wang, Jun Hua Zhang, Shu Kui Chen, Huai Bao Ma, Kun Peng Li
• Keywords: Deposition Morphology, Model Experiment, Sand Bar, Tributary Storage, Xiaolangdi Reservoir

References

[1] Lin X. S. and Li J. Z.: Engineering planning of the planning and design series of Xiaolangdi project of the Yellow River (Yellow River Conservancy Press, China 2006, In Chinese ).

[2] Wang T. and Ma H. B.: Characteristics of water and sediment and scour and silting evolution of Xiaolangdi Reservoir in early sediment retaining period (Yellow River Institute of Hydraulic Research, YRCC, China 2011, In Chinese ).

[3] Zhang J. H., Chen S. K., Ma H. B., Chen X. T., Li T., Wang T., Jiang S. Q., LI K. P., and Wang Y.: Report on model test of the first operational mode of Xiaolangdi Reservoir for flood control and sedimentation reduction during later sediment retaining period (Yellow River Institute of Hydraulic Research, YRCC, China 2010, In Chinese ).

DOI: 10.24850/j-tyca-2019-04-09