| 强震区板桩结构成层土地震土压力的计算方法 |
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| 引用本文： | 孙 艺,孙 英.强震区板桩结构成层土地震土压力的计算方法[J].水运工程,2019(2):56-60. |
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| 作者姓名： | 孙 艺 孙 英 |
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| 作者单位： | 中交第四航务工程勘察设计院有限公司;郑州铁路职业技术学院 |
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| 摘 要： | 物部-冈部公式广泛应用于地震作用下的土压力计算,但因其适用条件的局限性,不能用于板桩墙后既含砂土又含有黏土的非均质土,且国内外规范对此类成层土的地震土压力计算没有统一的规定。总结国内外规范中成层土地震动土压力计算方法,找出其本质差异,在前人研究基础上引进整体极限平衡方法,结合SLOPE软件,得出强震区板桩结构成层土地震土压力的计算方法,并通过海外强震区港口工程实例验证,为同类工程提供参考。
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| 关 键 词： | 强震区 板桩结构 成层土 地震土压力 整体极限平衡法 |
Calculation method for seismic earth pressure of stratified soil of sheet pile at high-earthquake zone |
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| SUN Yi and SUN Ying.Calculation method for seismic earth pressure of stratified soil of sheet pile at high-earthquake zone[J].Port & Waterway Engineering,2019(2):56-60. |
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| Authors: | SUN Yi and SUN Ying |
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| Institution: | CCCC-FHDI Engineering Co.,Ltd.,Guangzhou 510230,China and Zhengzhou Railway Vocational and Technical College,Zhengzhou 450052,China |
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| Abstract: | The Mononobe-Okabe equation is widely used for determining seismic earth pressures,but it is incapable to calculate some earth pressures under limited conditions,such as the stratified soils which include sand and clay behind the sheet pile wall.There is no uniform rule for this calculation in Chinese and international codes.We summarize calculation methods for seismic earth pressure of stratified soil,and find the differences between Chinese and international codes.Therefore we propose the generalized limit equilibrium method based on the previous studies,obtain the calculation method for seismic earth pressure of stratified soil by SLOPE software at high-earthquake zone,and verify the method by an abroad marine project.It can provide reference for the similar projects. |
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| Keywords: | high-earthquake zone sheet pile structure stratified soil seismic earth pressure generalized limit equilibrium method |
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