Caofeidian barrier island extends southward into the Bohai Bay in the form of headland, just in front of which there is a deep channel with the largest water depth of 41 m. The formation of the deep channel was based on the old river valley extending from the Haihe River Estuary to the Bohai Sea Strait. The headland topography of Caofeidian barrier island forms the boundary condition of the deep channel, and the obvious velocity increase by headland effect becomes the dynamic condition of the deep channel development. The boundary condition and dynamic condition for the deep channel are almost adaptive for a long time, and the seabed is basically in a state of stability, and the the deep channel is in a state of slight erosion with short sediment supply. In recent years, the development of the Caofeidian harbor area has a significant effect on the evolution of the deep channel. The engineering practice shows that during 2004-2009, the seabed is basically in a state of erosion-deposition equilibrium with slight ersoion, and the deep channel is stable, which proves that the development of the Caofeidian harbor area did not change the boundary and dynamic conditions of the deep channel.
JI Rongyao, LU Yongjun, ZUO Liqin
. Formation Mechanism and Stability of Caofeidian Channel in the Bohai Bay[J]. Acta Geographica Sinica, 2011
, 66(3)
: 348
-355
.
DOI: 10.11821/xb201103007
[1] Ji Rongyao, Luo Xianlin, Lu Yongjun et al. Formation and recent evolution of barrier-lagoon system in Bohe area, Guangdong. The Ocean Engineering, 2007, 25(3): 103-108. [季荣耀, 罗宪琳, 陆永军等. 粤西博贺沙坝澙湖海岸体系发育及现代演变. 海洋工程, 2007, 25(3): 103-108.]
[2] Bian Shuhua, Xia Dongxing, Li Chaoxin. Geomorphologic system in the Jiaozhou Bay tidal inlet. Advances in Marine Science, 2005, 23(2): 144-151. [边淑华, 夏东兴, 李朝新. 胶州湾潮汐通道地貌体系. 海洋科学进展, 2005, 23(2): 144-151.]
[3] Liu Gaofeng, Shen Huanting, Wu Jiaxue et al. The study of hydrodynamic characteristics of flood and ebb channels and channel type judgment. Acta Oceanologica Sinica, 2005, 27(5): 1-7. [刘高峰, 沈焕庭, 吴加学等. 河口涨落潮槽水动力及河槽类型判定. 海洋学报, 2005, 27(5): 1-7.]
[4] Chen Shenliang. Hydrodynamics, sediments and strait-channel effects for the Qiqu Archipelago. Acta Oceanologica Sinica, 2000, 22(3): 123-131. [陈沈良. 崎岖列岛海区的水文泥沙及其峡道效应. 海洋学报, 2000, 22(3): 123-131.]
[5] Yu Guohua, Lu Peidong. A study on the stability of submergible tidal inlets: A case study of Xiaomiaohong waterway, Lusi, Jiangsu. Acta Geographica Sinica, 1996, 51(2): 127-134. [喻国华, 陆陪东. 江苏吕四小庙洪淹没性潮汐汊道的稳定性. 学报, 1996, 51(2): 127-134.]
[6] Yu Qiwen, Fu Ningping. Formation and evolution of the north deep channel of the Hangzhou Bay. Acta Oceanologica Sinica, 1994, 16(3): 74-85. [余祈文, 符宁平. 杭州湾北岸深槽形成及演变特性研究. 海洋学报, 1994, 16(3): 74-85.]
[7] Jia Yulian, Ke xiankun, Xu Yehua et al. Sedimentary transport trends within a sand bar-lagoon system in the Bohai Sea. Marine Sciences, 1999, (3): 56-60. [贾玉连, 柯贤坤, 许叶华等. 渤海湾曹妃甸沙坝—泻湖海岸沉积物搬运趋势. 海洋, 1999, (3): 56-60.]
[8] Zhang Ning, Yin Yong, Pan Shaoming et al. Modern sedimentation of tidal inlet-tidal basin system in Caofeidian coastal area, Bohai Bay. Marine Geology & Quaternary Geology, 2009, 29(6): 25-34. [张宁, 殷勇, 潘少明等. 渤海湾曹妃甸潮道系统的现代沉积作用. 海洋地质与第四纪地质, 2009, 29(6): 25-34.]
[9] Wang Yan, Ke Xiankun, Jia Yulian et al. Study on coastal profile changes of the Caofeidian area in the Bohai Sea since 1983. Marine Science Bulletin, 1999, 18(1): 43-51. [王艳, 柯贤坤, 贾玉连等. 渤海湾曹妃甸80 年代以来海岸剖面变究. 海洋通报, 1999, 18(1): 43-51.]
[10] Yang Hua, Zhao Hongbo, Wu Yixi. Analysis of hydrodynamic and sediment transport of Caofeidian sea area. Journal of Waterway and Harbour, 2005, 26(3): 130-133. [杨华, 赵洪波, 吴以喜. 曹妃甸海域水文泥沙环境及冲淤演变分析. 水口, 2005, 26(3): 130-133.]
[11] Lu Yongjun, Ji Rongyao, Zuo Liqin et al. Study on hydrodynamic and sedimentation problems in development of harbors located at inlet of tidal bay. Journal of Hydraulic Engineering, 2007, 38(12): 1426-1436. [陆永军, 季荣耀, 左利钦等. 型潮汐通道中大型深水港开发的水沙问题研究. 水利学报, 2007, 38(12): 1426-1436.]
[12] Lu Yongjun, Ji Rongyao, Zuo Liqin. Morphodynamic responses to the deep water harbor development in the Caofeidian sea area, China's Bohai Bay. Coastal Engineering, 2009, 56(8): 831-843.
[13] Ji Rongyao. Morphodynamic processes and engineering reaction of tidal channels: Taking Caofeidian nearshore area in Bohai Bay for example [D]. Nanjing: Nanjing Hydraulic Research Institute, 2008. [季荣耀. 潮汐深槽动力地貌过程及效应研究[D]. 南京: 南京水利科学研究院, 2008.]
[14] Institute of Oceanology, Chinese Academy of Sciences. Marine Geology of the Bohai Sea. Beijing: Science Press, 1985. [中国科学院海洋研究所, 海洋地质研究室. 渤海地质. 北京: 科学出版社, 1985.]
[15] Gao Shanming, Li Yuanfang, An Fengtong et al. Formation of sand bodies near shore and coastlines change in Luanhe delta. Acta Oceanologica Sinica, 1981, 2 (4): 102-113. [高善明, 李元芳, 安凤桐等. 滦河三角洲滨岸沙体的形成和海变迁. 海洋学报, 1981, 2(4): 102-113.]
[16] Zhang Renshun, Li Kunping. Evolution of tidal inlet-drainage basin system on Luanhe river delta. The Ocean Engineering, 1996, 14(4): 45-52. [张忍顺, 李坤平. 滦河三角洲海岸潮汐汊道—潮盆体系的演变. 海洋工程, 1996, 14 (4): 45-52.]
[17] Wang Ying, Zou Xinqing, Wang Yaping et al. Report on coastal dynamic geomorphology of Caofeidian habour area of Tangshan port. Nanjing: Nanjing University, 2006. [王颖, 邹欣庆, 汪亚平等. 曹妃甸港区开发海岸动力地貌研究. : 南京大学, 2006.]
