CAJ | 학술논문

为了分析堆石流变特性及其对公伯峡混凝土面板应力变形的影响，利用原位观测资料对公伯峡面板堆石坝的变形性态进行分析，采用Merchant黏弹性流变模型，反演计算得到相应的流变参数，并用反演得到的流变参数对大坝受力变形进行计算分析。结果表明：堆石的流变作用较明显，流变期间沉降计算值与实测值的变化规律较吻合，堆石流变对面板应力变形、垂直缝和周边缝变形有较大影响；所采用的流变模型和反演得到的流变参数较合理，能够预测面板坝轴向应力和裂缝的发展趋势。
위료분석퇴석류변특성급기대공백협혼응토면판응력변형적영향，이용원위관측자료대공백협면판퇴석패적변형성태진행분석，채용Merchant점탄성류변모형，반연계산득도상응적류변삼수，병용반연득도적류변삼수대대패수력변형진행계산분석。결과표명：퇴석적류변작용교명현，류변기간침강계산치여실측치적변화규률교문합，퇴석류변대면판응력변형、수직봉화주변봉변형유교대영향；소채용적류변모형화반연득도적류변삼수교합리，능구예측면판패축향응력화렬봉적발전추세。
In order to study the rheology of rockfills and its influence on the stress and deformation of the concrete face, the monitoring deformation data of the Gongboxia Concrete-Faced Rockfill Dam was analyzed. The viscoelastic rheological model Merchant was applied to determine the relevant rheological parameters of the rockfills by back analysis. The stress and deformation of the dam during the operation were calculated using the obtained rheological parameters. The results show that the rheology of rockfills is relatively obvious and the computed results agree well with the measured values. The rheology of rockfills has great impact on the stress and deformation of concrete faces, vertical joints and peripheral joints. The rheological model and parameters obtained by back analysis are reasonable, and can be used to predict the development of axial stress and the cracks occurring trend in the concrete face.