塘冲堆石坝施工期沉降反演分析及长期变形预测  

Settlement Back-analysis and Long-term Deformation Prediction of Tangchong Rockfill Dam Construction

作　　者：庞井龙 付科[1] 庞先明[1] 姜晓桢[2] 

机构地区：[1]贵州省大坝安全监测中心,贵州贵阳550002 [2]南京水利科学研究院,江苏南京210024

出　　处：《人民珠江》2017年第11期55-60,共6页Pearl River

基　　金：贵州省水利科技经费项目基金(KT201608);国家自然科学基金(51509165)

摘　　要：在整理分析塘冲水库面板堆石坝施工期沉降观测资料的基础上,采用模拟退火算法对坝体堆石料邓肯E-B模型的参数及流变模型参数进行反演分析。反演结果表明,基于反演参数的沉降计算值与实测值吻合很好,在反演参数的基础上对蓄水后坝体的长期变形进行预测,预测结果表明,坝体的流变变形量不大,最终大坝的变形、面板应力应变、各周边缝变形均在在合理范围以内,满足设计要求。Based on the analysis of the settlement data of Tangchong concrete face rockfill dam, the parameters of Duncan E-B model and rheological model were analyzed by simulated annealing algorithm. The results showed that the settlement calculations based on inversion parameters were in good agreement with the measured values. On the basis of inversion parameters, the long-term deformation of dam was predicted. The prediction results showed that the rheological deformation of the dam was not large. In the end, the dam deformation, the panel stress and strain, the deformation of peripheral joints were within a reasonable range, which could meet the design requirements.

关 键 词：反演分析 变形预测 运行性态 

分 类 号：TV641[水利工程—水利水电工程]