摘要
从工程泥沙角度建议将泥沙中值粒径在0.03 mm≤d50≤0.10 mm的海岸定义为粉沙质海岸。粉沙质海岸泥沙具有易起动、沉降快、密实快的特性,由此决定了粉沙质海岸港口泥沙淤积的特点。与港口工程密切相关的近岸区域可分为淤涨型、侵蚀型和动态平衡型,同一地点,海岸地貌特征随外界影响因素的变化而变化。根据粉沙质海岸港口的泥沙淤积特点和实际经验,提出了在粉沙质海岸进行港口水域平面布局时应重点考虑的因素。根据已建港口情况,论述了适合粉沙质海岸的港口平面布局模式及应遵循的原则。
From the view of sediment transport in engineering, the definition for silty beach, whose median sediment size is within 0. 03 mm ≤〈d50≤0.10 mm, is suggested. With the characteristics of starting-up easily, settling quickly and compacting rapidly, the features of the sedimentation of silty beach are determined. The near-shore areas which have close correlation with port engineering can be, divided into three patterns： siltation-rise, erosion and dynamic equilibrium. And at the same site, the geomorphic characteristic of shore will change with the variation of environmental factors. Based on the features of sedimentation and actual operation experiences of the ports, the main points to be considered when doing layout arrangement for the water area of a port on silty beach are presented in the paper. According to the situations of several ports which have been built, the layout an-angement suitable for silty beach is discussed, and the principles which should be followed on the layout arrangement are also proposed.
出处
《海洋工程》
CSCD
北大核心
2006年第4期81-85,共5页
The Ocean Engineering
关键词
粉沙质海岸
港口水域布局
防沙堤
淤积
silty beach
water areas arrangement for port
breakwater
sedimentation
