拱坝-坝肩整体动力稳定性的离心模型试验

采用离心模型试验方法研究拱坝-坝肩系统的动力抗滑稳定,以及拱坝在动力荷载作用下的破坏机理。采用以脆性材料制作的模型拱坝进行离心模型动力试验,测定模型拱坝在谐波荷载作用下的动力反应,得到了结构从完整到破坏的全过程,揭示了模型拱坝的动力反应特性和破坏机理。试验结果同时表明,离心模型动力试验对于研究拱坝-坝肩系统的静、动力稳定是一种有效的手段。

Centrifuge modeling of seimic stability of arch dam-abutment

Centrifuge modeling was carried out to study the seismic stability of the arch dam-abutment and the seismic failure of arch dams under dynamic loads.Dynamic tests were performed on the model dam made of brittle materials.The dynamic response of the arch dam under harmonic loads was measured.The whole damage process of the dam was obtained so as to reveal the characteristics of dynamic response and the damage mechanism of the arch dam.The test results show that the dynamic tests of centrifuge models are an effective method for study on the static and dynamic stability of arch dam-abutment system.