| 张小平,包承纲,张劲松.三峡工程二期围堰防渗墙变形规律及运行状况分析[J].水利学报,2000,31(9):0091-0096 |
| 三峡工程二期围堰防渗墙变形规律及运行状况分析 |
| The displacement and operaton of impervious cores in phase-Ⅱ cofferdam of Three Gorges Project |
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| DOI： |
| 中文关键词: 三峡工程 二期围堰 防渗墙 变形规律 实测资料 有限元 |
| 英文关键词: Three Gorges Project phase-Ⅱ cofferdam impervious core cutoff displacement monitoring data |
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| 中文摘要: |
| 三峡二期围堰于1998年建成挡水，运行状况良好。本文首先根据实际观测资料，分析了三峡二期上游围堰双墙的变形机理，又通过各种情况的有限元计算，包括墙体不同龄期、上游水位变动、墙间水位变动以及改变堰体材料参数对上下防渗墙位移及应力的影响，分析了各种可能的应力状态。所得结果对于防渗墙的安全运行具有指导意义。 |
| 英文摘要: |
| The displacement and operation of the dual impervious cores in phase-Ⅱ cofferdam of TGP are analyzed according to the monitoring data.It is concluded that the impervious cores are working safely.The stress and strain are further analyzed by using FEMto forecast the stability of the cores if the material parameters are changed in the future,the water level between two cutoff is variable as well as the upstream level is changed. |
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