CAJ | 학술논문

　　沥青混凝土心墙坝心墙与基座的连接型式对坝体防渗性能有着重要影响。针对沥青混凝土心墙坝心墙与基座的两种不同接头型式（弧形和水平接头），精心设计了其他条件均相同的振动台模型类比试验，利用高速高清相机记录整个振动过程，采用PIV图像分析方法研究两种接头型式心墙与基座间的错动、心墙的倾斜以及接头处防渗性能的差别。采用动力有限元法对物理模型进行数值模拟，并与物理模型试验结果进行印证。结果表明：弧形接头沥青玛蹄脂层的错动比水平接头的小，而心墙倾斜度比水平接头的稍大；随着沥青玛蹄脂层厚度的增加和心墙两侧压力差的增加，错动和倾斜逐渐增大。数值模拟分析与物理模型试验结果定性上一致。
　　력청혼응토심장패심장여기좌적련접형식대패체방삼성능유착중요영향。침대력청혼응토심장패심장여기좌적량충불동접두형식（호형화수평접두），정심설계료기타조건균상동적진동태모형류비시험，이용고속고청상궤기록정개진동과정，채용PIV도상분석방법연구량충접두형식심장여기좌간적착동、심장적경사이급접두처방삼성능적차별。채용동력유한원법대물리모형진행수치모의，병여물리모형시험결과진행인증。결과표명：호형접두력청마제지층적착동비수평접두적소，이심장경사도비수평접두적초대；수착력청마제지층후도적증가화심장량측압력차적증가，착동화경사축점증대。수치모의분석여물리모형시험결과정성상일치。
The type of joint between core wall and base has a major impact on the anti‐seepage behavior of asphalt concrete core wall dam . The analogical shaking table model tests about two different joints (arc‐shaped and horizontal joints ) are designed w hile other things are equal . High speed and high definition camera is used to record the w hole vibration process ,w hich is further used to study the dislocation between asphalt concrete core wall and base ,the tilt of core wall and the anti‐seepage behavior of joints through PIV image analysis method .A dynamic finite element method is applied to simulation of the physical model ,and its numerical results are compared with the actual responses of test model . T he research results show that the asphalt mastic layer dislocation of arc‐shaped joint is smaller than that of the horizontal joint ,but the tilt of arc‐shaped joint is slightly larger than that of the horizontal joint ;and both of the two quantities will be larger with the increase of the thickness of asphalt mastic layer and the difference of pressure on both sides of the core wall .In addition ,the results of numerical analyses are qualitatively consistent with those of model test .