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| 推进波作用下的底泥起动 |
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赵子丹1,游涛2,刘同利2,练继建2,张庆河2
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1. 天津大学,建筑工程学院,天津,300072;华东师范大学,河口海岸国家重点实验室,上海,200062
2. 天津大学,建筑工程学院,天津,300072
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| 摘要: |
| 在介绍推进波作用下底泥起动特点的基础上，将上层水体作为粘性流体，底泥作为粘弹性体，推导了推进波作用下泥床面剪应力的表达式，并根据试验结果，给出了推进波作用下底泥起动时的床面剪应力与底泥流变参数的关系。 |
| 关键词: 粘性流体 粘弹性体 床面剪应力 推进波 底泥 |
| DOI： |
| 分类号:TV142.1 |
| 基金项目:教育部博士学科专项基金，国家自然科学基金资助项目 (5 99790 2 0 ) |
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| Threshhold movement of bottom mud due to progressive wave action |
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ZHAO Zi-dan ,,YOU Tao ,LIU Tong-li ,LIAN Ji-jian ,ZHANG Qing-he
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ZHAO Zi-dan 1,2,YOU Tao 1,LIU Tong-li 1,LIAN Ji-jian 1,ZHANG Qing-he 1
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| Abstract: |
| Based on the properties of the threshold movement of bottom mud due to progressive wave, a theoretical solution of bottom shear stress due to progressive wave action was derived, assuming the water as viscous fluid and the mud as visco-elastic medium. And the relationship between critical bottom shear stress and rheology parameter of bottom mud was obtained in laboratory experiments. |
| Key words: viscous fluid,visco-elastic medium,bottom shear stress,rheology parameter,threshold movement,progressive wave,bottom mud |
