| 基于数据融合理论的某坝段地下水宏观动态研究 |
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| 引用本文： | 彭鹏,宋汉周,郭张军.基于数据融合理论的某坝段地下水宏观动态研究[J].岩土力学,2009,30(12):3820-3824. |
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| 作者姓名： | 彭鹏 宋汉周 郭张军 |
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| 作者单位： | 1. 河海大学,地球科学与工程系,南京,210098
2. 陕西电力科学研究院水电技术研究所,西安,710054 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 在证明了采用误差均方差最小意义下，多传感器数据融合的效果优于利用任一单个传感器进行估计的效果，采用决策级融合方法，将其应用于某坝9坝段地下水宏观动态分析。经分析知：该坝段在2003～2004年为地下水宏观动态的相对突变时期，自2004年以后，坝基地下水宏观动态与库水之间的相关程度又趋于相对的稳定时期，表明该坝段坝基帷幕体的防渗性能至少出现了局部的衰减、且具有阶段性变化的特点；就分析时段而言，2003～2004年间为帷幕体防渗性能明显衰减时期，而2004年以后为其相对稳定时期。
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| 关 键 词： | 数据融合 误差协方差 坝基地下水宏观动态 防渗耐久性 |
| 收稿时间： | 2008-11-26 |
Study of macroscopic regime of groundwater under dam section based on data fusion theory |
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| PENG Peng,SONG Han-zhou,GUO Zhang-jun.Study of macroscopic regime of groundwater under dam section based on data fusion theory[J].Rock and Soil Mechanics,2009,30(12):3820-3824. |
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| Authors: | PENG Peng SONG Han-zhou GUO Zhang-jun |
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| Institution: | 1. Department of Earth Science and Engineering, Hohai University, Nanjing 210098, China; 2. Shaanxi Electric Power Research Institute, Xi’an 710054, China |
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| Abstract: | The fusion efficiency of multi-sensor being theoretically proved to be better than that of any single sensor, analysis of groundwater macroscopic regime under a dam section was carried out by using a decision-making fusion method. As a result, following aspects can be identified.(1) The macroscopic regimes under dam section 9 had the tendency of increasing with time between 2003 and 2004, the close relationship with the reservoir water level; (2) The macroscopic regimes of section 9 kept close relationship with the reservoir water level from 2004 to 2007; (3) the anti-seepage performance of the curtain-grouting was to be weakened locally. |
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| Keywords: | data fusion error covariance macroscopic regimes of dam foundation groundwater durability of anti-seepage |
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