| 公伯峡面板堆石坝流变变形的反演分析 |
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| 引用本文： | 张雷,张嘎,王富强,张建民.公伯峡面板堆石坝流变变形的反演分析[J].岩土力学,2011,32(Z2):521-525. |
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| 作者姓名： | 张雷 张嘎 王富强 张建民 |
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| 作者单位： | 清华大学水沙科学与水利水电工程国家重点实验室;水电水利规划设计总院; |
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| 基金项目： | 国家科技支撑计划课题(No.2009BAK56B02); 国家自然科学基金(No.50979046) |
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| 摘 要： | 采用沈珠江等提出的流变模型,根据公伯峡面板堆石坝坝体填筑竣工到蓄水前的沉降监测资料,进行反演分析得到相应的流变参数,并用该参数对大坝应力变形进行了计算分析。沉降点监测值和计算值变动规律比较一致,说明了流变模型的有效性;由于坝体堆石料的流变,面板的受力变形在运行期内呈现一定规律性的变化,并逐渐趋于稳定。
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| 关 键 词： | 面板堆石坝 流变变形 反分析 各向异性 |
| 收稿时间： | 2011-05-24 |
Rheological deformation back-analysis for Gongboxia concrete faced rockfill dam |
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| ZHANG Lei,ZHANG Ga,WANG Fu-qiang,ZHANG Jian-min.Rheological deformation back-analysis for Gongboxia concrete faced rockfill dam[J].Rock and Soil Mechanics,2011,32(Z2):521-525. |
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| Authors: | ZHANG Lei ZHANG Ga WANG Fu-qiang ZHANG Jian-min |
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| Institution: | 1. State Key Laboratory of Hydroscience and Hydraulic Engineering, Tsinghua University, Beijing 100084, China; 2. Planning and Design General Institute of Hydropower and Water Resources, Beijing 100011, China |
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| Abstract: | Based on Shen's rheological model,back-analysis is conducted using some settlement monitoring data to get valid model parameters.The period of monitoring data is after the filling completion and before water storage,during which time the deformation of the dam is exclusively due to the rheology of rockfill materials.This model parameters are then used to calculate the stress and deformation in the dam and the concrete face during operating period.Settlements monitoring and calculated values match very well,... |
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| Keywords: | concrete faced rockfill dam rheological deformation back analysis anisotropy |
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