In order to solve the lack of energy dissipator and the low flood control capacity of spillway, rubber dam was constructed to improve the potential efficiency of spillway. To explore the effects of building rubber dam in the control segment on the hydraulic characteristics of spillway, factors such as the flood discharge capacity of spillway, the characteristics of flow and the effect of export energy dissipation were analyzed in association with engineering example. Research results show that: the discharge capacity of spillway decreases when being constructed with rubber dam, but safety operation of spillway can be guaranteed because the capacity still meets the damand of engineering design; the rubber dam has a little influence on flow velocity of spillway , and flow velocity variation of front of the dam is bigger than that of back of the dam; under the condition of rubber dam collapse or water filling, variation trend of water surface profile is similar, and sudden changing points are located near rubber dam or the position where gradient changes; moreover, the effect of rubber dam on energy dissipation and scouring prevention is slight, so it is feasible to construct a rubber dam in the control segment of spillway. The results can also be taken as reference for similar engineering design and disaster relief and strengthening of small and medium-sized reservoirs.
Key words
spillway /
rubber dam /
discharge capacity /
flow characteristics /
energy dissipation and scouring prevention
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References
[1] 谭界雄,任 翔. 我国小型病险水库病害特点及除险加固技术[J]. 中国水利,2011,(14):31-33. (TAN Jie-xiong, REN Xiang. Characters and Technology of Danger Removal and Consolidation for Sick and Dangerous Small Reservoirs in China [J]. China Water Resources, 2011,(14):31-33. (in Chinese))
[2] 邵新正. 充气、充水两用橡胶坝在哈萨克斯坦某水库中的运用[J].河南水利与南水北调,2009,(7):40-41.( SHAO Xin-zheng. Aplication of Rubber Dam Filled with Air and Water of a Reservoir in Kazakhstan[J]. Henan Water Resources & South-to-North Water Diversion, 2009, (7) : 40-41. (in Chinese))
[3] 白继中,孙西欢,田 淳. 申庄水库溢洪道模型试验优化研究[J].中国农村水利水电,2007,(1):96-98. (BAI Ji-zhong, SUN Xi-huan, TIAN Chun. Model Test Research on the Optimization of Reservoir Spillway of Shenzhuang [J],China Rural Water and Hydropower, 2007,(1):96-98. (in Chinese))
[4] 苏桂香,许秀平.黄土梁水库溢洪道加建橡胶坝的设计[J]. 水利建设与管理,2007,(17):11-13. (SU Gui-xiang, XU Xiu-ping, The Design of Spillway Constructed with Rubber Dam of Huangtuliang Reservoir [J]. Water Resources Development & Management, 2007,(17):11-13.(in Chinese))
[5] 李俊杰. 太谷县庞庄水库橡胶坝设计综述[J].山西水利,2006,(3):77-78. (LI Jun-jie. Review on the Design of Rubber Dam of Pangzhuang Reservoir in Taigu County [J], Shanxi Water Resources, 2006,(3):77-78. (in Chinese))
[6] 栗秉忠. 橡胶坝技术的推广应用及发展前景[J].中国农村水利水电,2007,(5):62-63. (LI Bin-zhong. Technology of Rubber Dam Application and Development Prospects [J], China Rural Water and Hydropower, 2007,(5):62-63. (in Chinese))
[7] 黄国兵,焦春文,韩继斌,等. 水布垭水利枢纽泄洪消能方案比较研究[J].长江科学院院报,1999,(1):4-8.( HUANG Guo-bing, JIAO Chun-wen, HAN Ji-bin, et al. Comparative Study on Schemes of Flood Discharge and Energy Dissipation for Shuibuya Project [J]. Journal of Yangtze River Scientific Research Institute, 1999,(1):4-8.(in Chinese))
[8] 吴持恭.水力学(下册)[M].北京:高等教育出版社,1998. (WU Chi-gong. Hydraulics (Volume 2) [M]. Beijing: Higher Education Press, 1998. (in Chinese))
[9] SL253—2000, 溢洪道设计规范[S].北京:中国水利水电出版社,2000. (SL253—2000, Design Code for Spillway[S]. Beijing: China Water & Power Press, 2000. (in Chinese))
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