| 海堤土工织物滤层的探讨 |
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| 引用本文： | 章香雅,朱奚冰,孙元元.海堤土工织物滤层的探讨[J].岩土力学,2005,26(12):1941-1944. |
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| 作者姓名： | 章香雅 朱奚冰 孙元元 |
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| 作者单位： | 1. 浙江省钱塘江管理局勘测设计院,杭州,310016
2. 南京水利科学研究院,南京,210029 |
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| 摘 要： | 研究了波动水流对海堤织物滤层的水力要素及过滤机理。粒径小于0.6mm颗粒间存在粘着力;同时,由于滤层和堤体的渗透流速不一致,则堤体界面的土颗粒将受水流剪应力的作用。在分析了使土颗粒发生变形的水流剪应力、变形土体周壁的屈服应力和波浪压力等后,根据平衡原理,建立了织物滤层的保土性准则。
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| 关 键 词： | 海堤 波动水流 土工织物滤层 保土准则 |
| 文章编号： | 1000-7598-（2005）12-1941-04 |
| 收稿时间： | 2004-12-24 |
| 修稿时间： | 2005-04-25 |
Investigation on geotextile filter of sea embankments |
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| ZHANG Xiang-ya,ZHU Xi-bing,SUN Yuan-yuan.Investigation on geotextile filter of sea embankments[J].Rock and Soil Mechanics,2005,26(12):1941-1944. |
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| Authors: | ZHANG Xiang-ya ZHU Xi-bing SUN Yuan-yuan |
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| Institution: | 1. Design Institute of Bureau of Qiantang River in Zhejiang Province, Hangzhou 310016, China; 2. Nanjing Hydraulic Research Institute, Nanjing 210029, China |
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| Abstract: | The hydraulic factors caused by the fluctuation flow and the filter mechanism of the geotextile filter of sea embankment are researched.There will be an adhesion force existing among the grains that have a diameter less than 0.6mm.Meanwhile,the soil grains are subjected to the shear stress developed by the flow because the filter and the embankment body have different seepage velocity.After the shear stress developed by the flow that make the soil grains deformed;the submit stress around the soil grains,the wave pressure etc.are analyzed.Therefore,based on the principle of balance,the retention criterion of the geotextile filter is proposed. |
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| Keywords: | sea embankment fluctuation flow geotextile filter retention criterion |
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