摘要
根据实测资料分析了广州港出海航道泥沙冲淤时空变化以及伶仃航道的回淤原因，运用数学模型对伶仃航道不同开挖尺度方案回淤量进行预测．结果表明，航道的平均淤强随开挖深度的增加而增大．回淤量除与平均淤强有关外，还与开挖深度、宽度有关，不同方案的年回淤量在274．690万m^3之间．
Based on field observation data, the temporal and spacial variations of the deposition and erosion in the seaward channel of Guangzhou Harbor are analyzed, and the reasons for the back silting in the channel are presented in the paper. Prediction of the amount of siltation in the seaward deepwater channel for various excavated projects is performed by using the mathematic model. Results show that siltation intensity in the navigation channel increases with the increase of the excavation depth. The amount of siltation is relative to not only the siltation intensity but also the excavation depth and width, which ranges from 2.74×10^6 to 6.9 × 106 m^3 annually for various projects.
出处
《水利水运工程学报》
CSCD
北大核心
2008年第1期42-46,共5页
Hydro-Science and Engineering
关键词
深水出海航道
回淤量
伶仃航道
数值模拟
seaward deepwater channel
amount of siltation
Lingding channel
numerical simulation
