【作者】 范书立； 陈健云； 周晶； 朱彤； 金峤；

【Author】 FAN Shu-li CHEN Jian-yun ZHOU Jing ZHU Tong JIN Qiao (State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology,Dalian,Liaoning 116023,China)

【机构】 海岸与近海工程国家重点实验室大连理工大学；

【摘要】 采用仿真混凝土材料研究了龙开口水电站溢流坝段在不同因素影响下的动力破坏特征,并通过对6个模型试验结果的分析探讨了溢流坝段的动力破坏机理。试验中考虑了坝体-库水的动力相互作用以及横河向地震动对大坝破坏的影响,采用规范谱波和场地谱波两种地震动激励进行模型超载破坏分析。试验结果为工程设计和评价溢流坝段的抗震性能提供依据。更多还原

【Abstract】 The seismic rapture characteristics of overfall dam of RCC project were studied using emulation concrete material models through shaking table experiments.Damage mechanism of overall dam was discussed based on anglicizing the shaking table test results of six different models.The influence of the reservoir water on hydrodynamic pressure upon the dam surface was considered.Using two sets of seismic waves,the overloading failure tests were carried out to verify the behaviors of overfall dam.The test results show that the first crack in overfall dam during earthquake appears near the joint of pier and dam body.The results provide the reference basis for the seismic safety evaluation of overfall dam and the engineering design.更多还原