重力坝

Based on the elastic-plastic increment theory the bearing capacity of concrete gravity dam is studied using stability and analytic method expressed in strain space.

混凝土重力坝的承载能力是高坝设计中重要的研究课题。

The results shows that the holistic model was much more difficult than separate model in model building, element meshing and calculating, but it was complex conform to reality and it can also reflect the interaction of dam and factory building.

在高烈度地震作用下，混凝土重力坝及厂房的抗震安全性关系到下游广大地区工农业生产和人们的生命财产的安全，因此，对混凝土重力坝及坝后厂房的地震响应分析具有重大的现实意义。

But in recent years, the domestic and international gravity dams that are built recently are more and more few, and the gravity dams that were built in early stage have serious safe problems basically, which decide that the problem of consolidated gravity dams will become a outstanding problem in circle of w...

近年来，国内外新建的重力坝越来越少，而早期所建的重力坝，基本上都存在着严重的安全问题，这就决定着重力坝的加固必将成为世界上水利界一个突出性的问题，从而也就决定了预测重力坝使用寿命的重要性。

The influence of with or without longitudinal joint, with or without initial opening, with or without filling in the joints and different friction factor in the joint face and so on are studied on the seismic response of Fengman Dam. Thus the conclusions for gravity dams with longitudinal joints is drawn.

对于丰满重力坝，本文考虑了有、无纵缝，纵缝有、无宽度，纵缝有、无填充物及缝面的不同摩擦系数等情况，进行了静动组合的地震反应分析，对存在纵缝的重力坝的抗震特性得出了一系列规律性的认识。

Security and stability of gravity dam is always the key technique during the dam designing, running and managing.

重力坝安全稳定性一直是重力坝设计、运行和管理中的关键性问题。

In this thesis, the dynamic characteristics and the seismic response of overflow section of gravity dam are studied by FEM.

本文采用有限元动力分析方法，分析了重力坝溢流坝段的动力特性和地震动力响应，研究了重力坝溢流坝段的频谱分布规律、地震动位移和地震动应力的分布规律。

After Summing up vary kinds of analyzing methods, the FEM theories to the gravity dam are expatiated briefly.

本文综述了重力坝的各种分析方法，简要阐述了重力坝有限元分析方法的基本原理。

His paper studies some problems of the earthquake-proof dynamical reliability analysis of gravity dams.

论述重力坝抗震动力可靠度分析中的几个基本问题，即地震作用下坝可靠度计算、地震发生概率的估计方法以及坝经历一次地震作用的抗震动力可靠性计算等，还以华北某重力坝为例说明其计算方法。

The simple calculation for stress isolines is brought about by a spline interpolation method,as well as the distributions of stress trace are given,which can provide more simple and direct stress field for designers.

混凝土重力坝应力计算的主要方法是理论计算法，分为材料力学法、弹性理论法和弹塑性理论法，但材料力学法至今仍被认为是计算重力坝应力和设计坝剖面的基本的常用方法[1，2]。

Based on the efficient approach developed above, cases of foundationinhomogeneity with stiffness varying according to an exponential function along the radialdirection, and cases of foundation inhomogeneity with stiffness discontinuity and with weakinterlayer strata on the earthquake response of concrete arch dams as well as gravity damswere analyzed. It is found that taking into account the effect of foundation inhomegeneity forthe earthquake safety assessment of concrete arch and gravity dams has great significance.

在以上理论的基础上，本文充分利用比例边界有限元法能够模拟非均匀无限域的优点，合理地提出了重力坝、拱坝的非均匀无限地基模型，分别研究了地基材料弹性模量沿深度按指数变化的无限不均匀地基和地基中存在断层或软弱夹层时对重力坝和拱坝的地震响应影响。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷