DISTRIBUTION CHARACTERISTICS OF FLUID MUD IN THE SEAWARD CHANNEL OF THE LINGDING SEA
Due to its high fluidity and high plasticity, the fluid mud, under the action of tide currents and waves and its deadweight, has great effect on sediment transportation and underwater landform. The study, on the formation and the basic characteristics and the evolution laws of the fluid mud, has the profound significance for the maintenance and full utilization of navigation channels. On the basis of the observed results in 1990, 1991, 2001, 2006 by use of the γ -ray densimeter, the fluid mud was widely found in the seaward channel of the Lingding Sea, but its distribution area has decreased during the recent period. The thickness of the fluid mud is thin and 0.1~0.6m in general, and the thicker fluid mud was mainly found in the north reach of the seaward channel. According to the change of the distribution range of the fluid mud, it has proved that the fluid mud is only founded in the channel and its thickness and area in the flood season is obviously larger than those in the dry season. It follows that the weak hydrodynamic environment and the abundant fine particles are the two important conditions for the formation of the fluid mud. The study has also proved that the formation location, the depth and length of the fluid mud have periodic change with the action of flood and ebb tides.
fluid mud distribution characteristic seaward channel Lingding Sea
Ji Rongyao Mo Siping Xin Wenjie Yang Mingyuan Lu Yongj un
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Resea Nanjing Hydraulic Research Institute, 223 Guangzhou Road, Nanjing, China Guangdong Waterway Bureau, 195 Yangjiang Middle Road, Guangzhou, China
国际会议
第四届亚太地区海岸会议(the Fourth International Conference on Asian and Pacific Coasts)
南京
英文
2007-09-21（万方平台首次上网日期，不代表论文的发表时间）