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This paper analyzed the mechanism of model establiehment of grey system theory GM(n, h) model.Then, it points out the existing problems for using that model to analyze and process large dam safety monitoring data array.On the basis of defining central accumulative reduction generation,equal value generation etc., it finds out a new dynamic system grey model桪GM(n,h) model.Analysis of typical calculation manifests that DGM(n, h)model possesses evident superiority than GM(n, h)model. 本文分析了灰色系统理论GM(n,h)模型的建模机理,进而指出了用该模型来分析处理大坝安全监测数据序列存在的问题。在定义了中心累减生成、均值生成等基础上,导出了一种新的动态系统灰色模型──DGM(n,h)模型。算例分析表明:DGM(n,h)模型比GM(n,h)模型有明显的优越性。 A new method for defermining the weights of factors which are of the dam safety monitoring data evaluation,is proposed.This method is formed by combining the modified analytical hierarchy process with the principal component analysis.And the corresponding calcutation procedures are also given.Finally,a actual dam is takem for example to demonstrate the feasibility and reasonableness of this new method. 提出了大坝实测性态综合评价中一种新的权重确定方法———改进的层次分析法与主成份分析法相结合赋权方法以及相应的算法步骤,并通过计算实例验证了这种新方法的可行性和合理性. The concrete face rockfill dam of the Tianshengqiao-I Hydropower Project has a height of 178 m and a embankment volume of 18 million m3. It is the highest dam of this kind under construction in China. The safety monitoring of the dam is particularly important for control of the embankment construction quality and ensuring future safe operation of the dam. This paper gives an overall presentation of the whole process from the design of the dam instrumentation, implementation of the design and the preliminary... The concrete face rockfill dam of the Tianshengqiao-I Hydropower Project has a height of 178 m and a embankment volume of 18 million m3. It is the highest dam of this kind under construction in China. The safety monitoring of the dam is particularly important for control of the embankment construction quality and ensuring future safe operation of the dam. This paper gives an overall presentation of the whole process from the design of the dam instrumentation, implementation of the design and the preliminary analysis of the data collected from the instrumentation. The new situation occurring during the construction of the project raises new requirements and additional observation items for the dam safety monitoring. In turn the the dam safety monitoring data have revealed new working characteristics of the dam which was not known, thus helping further understand the properties of the face rockfill dam. 天生桥一级混凝土面板堆石坝坝高178m,填筑方量1800万,是国内在建的最高面板堆石坝。大坝安全监测对控制坝体施工质量,保证大坝安全运行显得尤为重要。本文从天生桥一级面板堆石坝安全监测设计和设计的实施,到监测资料的初步分析,作了全过程的叙述。在天生桥一级大坝施工中不断遇到的新情况对大坝安全监测提出了新的内容和新的要求;反过来,大坝安全监测的资料又揭示了还未曾认识到的大坝工作特点,丰富了对面板堆石坝性状的认识。
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