| 深水基础钢板桩围堰最小入土深度分析 |
| Analysis of the Minimal Embedded Depth of Steel Sheet Pile Cofferdam for Deepwater Foundation |
| 投稿时间：2013-01-14 |
| 中文关键词:深水基础 钢板桩围堰 最小入土深度 有限元法 等值梁法 |
| 英文关键词:deepwater foundation steel sheet pile cofferdam the minimal embedded depth finite element method equivalent beam method |
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| 中文摘要: |
| 以沪杭高铁横潦泾特大桥河道中央主墩深水基础钢板桩围堰为例，分别采用空间有限元法、平面有限元法和等值梁法，计算钢板桩的最小入土深度。计算结果表明:等值梁法可用于桥梁深水基础钢板桩围堰的最小入土深度计算，且计算结果偏于安全；空间有限元法、平面有限元法和等值梁法所计算的钢板桩最小入土深度依次增大，但变化幅度不大；采用等值梁法计算钢板桩最小入土深度时，对于封底混凝土以下的多层土，可以采取等效土层的方法计算作用在钢板桩上的主动和被动土压力，从而简化土压力的计算。 |
| 英文摘要: |
| A case study is done for steel sheet pile cofferdam of deepwater foundation for main pier located at the centre of the river in the Hengliaojing Bridge of high speed railway from Shanghai to Hangzhou. In order to calculate the minimal embedded depth of steel sheet pile, spatial finite element method, plane finite element method and equivalent beam method is used, respectively. Results show that equivalent beam method can calculate the minimal embedded depth of steel sheet pile cofferdam for deepwater foundation, and the result is safer. The minimal embedded depth of steel sheet pile calculated by spatial finite element method, plane finite element method and equivalent beam method increases successively, but the change range is little. Equivalent soil layer method is used to calculate active earth pressure and passive earth pressure for soil layer acting on steel sheet pile under bottoming concrete, when the minimal embedded depth is calculated for steel sheet pile using by equivalent beam method, which can simplify calculation of the earth pressure. |
| 张骏.深水基础钢板桩围堰最小入土深度分析[J].石家庄铁道大学学报：自然科学版,2013,(3):37-42. |
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