| 1. | Dynamic analysis of massive - head dam
大头坝的动力分析 |
| 2. | The paper is concerned with the optimization based on conception of reliability
本文用基于可靠度下的优化来进行大头坝的优化设计。 |
| 3. | Then , the volume and cost of the massive - head dam is the best
使得大头坝在稳定、应力、几何等约束条件下达到体积最小，进而达到最低造价。 |
| 4. | Some famous massive - head dams of country have some trouble during their construction or working
国内几座有名大头坝在施工、运行期间分别出现了不同问题。 |
| 5. | So , there are major meanings on the calculation of massive - head dam ' s strength and the reliability of dam under the earthquake
可见对大头坝的强度的计算，及地震作用下大坝的可靠度的分析有着重要意义。 |
| 6. | For massive - head dam ' s unique shape , this paper applies autocad to build model and the dissection principle for the dissection of the dam . the principle is based on hyper - unit theory
大头坝由于其独特的形状，本文采用autocad建模再运用超单元理论的剖分原理对大头坝进行了剖分。 |
| 7. | Such as : the xinfengjiang massive - head dam . earthquake could be felt at reservoir region after it was stored water in 1959 . and , it appeared some rifts on its head during a strong earthquake in 1962
比如：新丰江大头坝在1959年水库蓄水后不久，库区发生有感地震， 1962年3月19日发生m = 6 . 1级强震时造成大坝头部裂缝。 |
| 8. | This paper is mainly concerned with the dynamic reliability of massive - head dam under earthquake . during the analyses , it considers the effect of variability 、 relevance and truncate of the stochastic variable
本文主要研究在地震作用下大头坝的动力可靠性，在计算中还考虑了随机变量的变异，相关，截尾对其可靠度的影响。 |
| 9. | Then , this paper utilizes the units and junctions to have the finite element analysis and calculation and analyze the dynamic response of the massive - head dam by one - dimensional cantilever beam method 、 stimulating static method and response spectrum method . finally , the dynamic displacement and dynamic stress of massive - head dam under earthquake could be got
并在此基础上，采用一维悬臂梁法、拟静力法、反应谱法分析了大头坝的动力响应，得到了地震作用下，大头坝的动位移、动应力。 |
