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河口淤泥的起动及冲刷规律

DOI: doi:10.3969/j.issn.1006-7043.2011.03.002

Keywords: 河口, 淤泥, 流变, 起动, 冲刷??

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Abstract:

为了研究河口海岸地区淤泥的运动规律,以天津塘沽地区淤泥为研究对象,采用理论分析与水槽实验相结合的方法,讨论了流变参数与密度之间的关系,总结出宾汉极限剪应力、粘滞系数与密度的关系均符合指数分布并给出关系式.研究了不同底床密度和水流条件下淤泥的起动及冲刷规律,得出淤泥的起动符合希尔兹曲线,随淤泥密度增大,起动流速相应加大;随着水深不断减小,底泥起动流速逐渐增大,越靠近底部,湍动强度越大.计算了不同水流条件下底泥的冲刷率,得出冲刷率与冲刷切应力成正比,并通过实验数据计算得到冲刷系数.

References

[1]  钱宁,万兆惠.泥沙运动力学[M].北京:科学出版社,2003:257-274. ?QIAN Ning, WAN Zhaohui. Mechanics of sediment transport[M]. Beijing: Science Press, 2003:257-274.?
[2]  BERLAMENT J E,OCKENDEN M C,TOOMAN E A, WINTERWERP J C.The characterization of cohesive sediment properties[J].Coastal Engineering,1993(21):105-128.?
[3]  黄建维,孙献清. 含盐淤泥的流变特性[J]. 水利水运科学研究,1988,9(2):65-72. ?HUANG Jianwei, SUN Xianqing. The rheological properties of salty mud[J]. Journal of Hydraulic Scientic Research, 1988,9(2):65-72.?
[4]  曹祖德.浮泥特性研究进展[J].天津大学学报,2002,35(3):34-40. ?CAO Zude. Research on fluid mud properties[J]. Journal of Tianjin University, 2002,35(3):34-40.?
[5]  洪柔嘉, 应水良.水流作用下浮泥起动流速试验研?究[J].? 水利学报,1988,18(8):49-55. ?HONG Roujia, YING Shuiliang. Research on incipient velocity of fluid mud under current[J]. Journal of Hydraulic Engineering, 1988,18(8):49-55.?
[6]  杨美卿,王桂玲.粘性细泥沙的临界起动公式[J].应用基础与工程科学学报,1995, 3(1):99-109. ?YANG Meiqing, WANG Guiling. The critical incipient velocity formula for cohesive sediment[J]. Journal of Applied Basic Science and Engineering, 1995, 3(1):99-109.?
[7]  窦国仁.论泥沙起动流速[J]. 水利学报, 1960,5(4):44-60. ?DOU Guoren. Research on the incipient velocity of ?sediment[J].?Journal of Hydraulic Engineering, 1960,5(4):44-60.?
[8]  邓绍云. 浮泥运动研究综述[J].人民黄河,2005,27(9):21-23. ?DENG Shaoyun. Research on fluid mud movement[J]. Yellow River, 2005,27(9) :21-23.?
[9]  黄建维. 海岸与河口黏性泥沙运动规律的研究和应?用[M].? 北京: 海洋出版社, 2008:125-131. ?HUANG Jianwei. The research and application of coastal and estuarine sediment movement[M]. Beijing: China Ocean Press, 2008:125-131.?
[10]  蒋昌波,白玉川,姜乃申,等.海河口粘性淤泥起动规律研究[J].水利学报,2001,32(6):51-56. ?〖JP3〗JIANG Changbo, BAI Yuchuan,JIANG Naishen,et al. Incipient motion of cohesive silt in the Haihe River estuary[J]. Journal of Hydraulic Engineering, 2001,32(6):51-56.?
[11]  李华国,袁美琦,张秀芹. 淤泥临界起动条件及冲刷率试验研究[J]. 水道港口,1995,6(9):20-26. ?LI Huaguo, YUAN Meiqi, ZHANG Xiuqin. Study on critical motion and erosion of cohesive sediment[J]. Journal of Waterway and Harbour,1995,6(9):20-26.?
[12]  王军,谈广鸣,舒彩文. 淤积固结条件下粘性细泥沙起动冲刷研究综述[J]. 泥沙研究,2008,6(6):49-55. ?WANG Jun, TAN Guangming, SHU Caiwen. Review on incipient motion and scour of consolidated cohesive fine sediment[J]. Journal of Sediment Research,2008,6(6):49-55.

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