Jingjiang river levee is of great importance for flood control and disaster reduction. According to field data of bank protection during the initial impoundment of Three Gorges Reservoir (TGR), we analyzed the interannual and annual variations and their inducing factors for riverbed near the bank of dangerous reaches after the TGR impoundment. We also summarized the status of dangerous reaches after the TGR impoundment. Three typical bank revetment reaches, Shashi, Yanguan and Haolong, are selected for case study. Research results show that most of the bank slopes were scoured and steepened, the lowest elevation decreased, and the characteristics of riverbed evolvement are not identical in different dangerous reaches along Jingjiang River levee.
DUAN Guang-lei, LONG Hui, GUO Man-jiao
. Evolvement of Riverbed Near Bank of Dangerous Reach along Jingjiang River Levee after the Impoundment of Three Gorges Reservoir[J]. Journal of Changjiang River Scientific Research Institute, 2014
, 31(5)
: 117
-122
.
DOI: 10.3969/j.issn.1001-5485.2014.05.023
[1] 段光磊,余文畴,龙 慧.荆江大堤护岸险工典型矶头近岸河床演变分析[J]. 泥沙研究,2007, (6):32-38. (DUAN Guang-lei, YU Wen-chou, LONG hui. Analysis on Near Bank Riverbed Evolvement of Typical Rock Spurs along Jingjiang Levee[J]. Journal of Sediment Research,2007, (6) :32-38. (in Chinese))
[2] 段光磊,唐从胜,王维国.荆江河段河势变化对护岸工程影响的研究[C]∥长江护岸及堤防防渗工程论文选集.北京:中国水利水电出版社,2003:86-92. (DUAN Guang-lei, TANG Cong-sheng, WANG Wei-guo. Influence of River Regime Variation in the Jingjiang River on Bank Revetment [C]∥Selected Essays of Bank Revetment and Dyke Seepage Control Engineering at Yangtze River.Beijing: China Water Power Press, 2003:86-92. (in Chinese))
[3] 段光磊,彭严波,王 强.长江荆江河段河道演变对防洪影响研究[J].人民长江,2007,38(2):100-102. (DUAN Guang-lei, PENG Yan-bo, WANG Qiang. Influence of River Evolvement in the Jingjiang Reach of Yangtze River on Flood Defence[J].Yangtze River, 2007, 38(2): 100-102. (in Chinese))
[4] 余文畴,卢金友.长江河道崩岸与护岸[M].北京:中国水利水电出版社,2008. (YU Wen-chou, LU Jin-you. River Bank Failure and Bank Revetment in Yangtze River[M]. Beijing: China Water Power Press, 2008. (in Chinese))
