| 河口海岸铁板砂研究进展 |
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| 引用本文： | 王虎,粟莉,白玉川.河口海岸铁板砂研究进展[J].水科学进展,2019,30(4):601-612. |
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| 作者姓名： | 王虎 粟莉 白玉川 |
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| 作者单位： | 1.天津大学海洋科学与技术学院, 天津 300072; |
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| 基金项目： | 国家自然科学基金资助项目（41702307）；国家重点研发计划资助项目（2018YFC0407505） |
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| 摘 要： | 铁板砂是一种特殊的沉积地貌,其性质和形成演化涉及海洋沉积动力、海洋工程地质等学科方向,对海岸防护、航运安全和海洋工程建设有重要影响。介绍了铁板砂的概念、特征和分布,以铁板砂形成和演化机制为主线,从原生沉积、冲刷分选和液化渗流3种模式出发,对国内外铁板砂研究现状进行总结和论述,分析了3种模式的优缺点和适用条件,从研究思路和研究方法等方面对铁板砂的研究趋势进行了展望,指出基于海洋土力学与沉积动力学相结合的思路,开展水体-床面-床内耦合的多要素同步观测,构建机制清晰的物理模型和定量评价的数学模型是今后铁板砂研究的发展方向。
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| 关 键 词： | 铁板砂 粉土 波浪 冲刷 分选 海床液化 渗流 |
| 收稿时间： | 2018-12-31 |
Research progress on consolidated silt in estuarine and coastal areas |
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| WANG Hu,SU Li,BAI Yuchuan.Research progress on consolidated silt in estuarine and coastal areas[J].Advances in Water Science,2019,30(4):601-612. |
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| Authors: | WANG Hu SU Li BAI Yuchuan |
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| Affiliation: | 1.School of Marine Science and Technology, Tianjin University, Tianjin 300072, China;2.State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China |
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| Abstract: | Consolidated silt is a special depositional landform. The properties,formation and evolution of consolidated silt,which relate to the fields of marine sediment dynamics and marine engineering geology,are of crucial importance for shore protection,navigation safety,and marine construction. This paper introduces the concept,characteristics and distribution of consolidated silt and focuses on mechanisms of formation and evolution. Recent research progress on consolidated silt is reviewed according to the three modes formation and evolution (i.e. primary deposition mode,coarsening and sorting mode,and liquefaction and seepage mode). New research ideas and methods with regards to consolidated silt are considered after analyzing the advantages and disadvantages of emphasizing the three modes. It is proposed that future research directions should:combine basic approaches of marine soil mechanics and sediment dynamics;carry out simultaneous observations of multiple-factors characterizing the water,seabed surface,and internal seabed;build an integrated conceptual model to describe the physical process;establish corresponding mathematical models to evaluate the formation and evolution of consolidated silt. |
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| Keywords: | consolidated silt silt wave scour sorting seabed liquefaction seepage |
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