查询词典 arch dam

And also provide some methods and suggestions about the geological defect treatment of the dam foundation and arch stand.

同时提出了对坝基、拱座岩体地质缺陷处理的一些方法和建议。

Based on these hot and key spots in construction of high dams at present, Combining one of the 973 plan projects: Study of Global Stability of Geology Engineering System under Interaction of Several Factors(NO.2002CB412707), the dissertation mainly studies the stability anomaly and corresponding shape optimization. The main contents are as follows:The dissertation advances stability analysis method of arch dams based on arch-cantilever method, that is, the stability of arch ring and cantilever are analyzed respectively based on arch-cantilever method and corresponding formula of stability calculation is established. So the calculation methods of dam stress and stability are unified.

围绕目前高拱坝建设中的热点和重点问题，结合973计划课题：多因素相互作用下地质工程系统的整体稳定性研究(编号 2002CB412707)，重点研究高拱坝的稳定转异以及体形优化，现将主要内容归纳如下：本文提出基于拱梁分载法的拱坝稳定分析方法，即在拱梁分载法的基础上，分别分析拱圈和悬臂梁的稳定，建立相应的稳定计算公式，统一坝体结构稳定和应力计算方法。

Through a better understan** of structural behavior, it is realized that the safety of an arch dam is not merely equal to cylinder strength divided by the allowable design stress.

通过更好地了解结构性能之后，得知拱坝的安全度并不仅仅等于圆柱体强度除以设计允许应力。

In order to practical case of Ertan project, using Object-Oriented FEM, FEMSNI subsystem for positive analysis of method library have been presented, which is one of Ertan arch dam safety supervision system.

针对二滩工程的实际情况，运用面向对象有限元方法，研制了二滩拱坝安全监测—在线监控及反馈分析系统中方法库正分析FEMSNI子系统，对二滩拱坝进行了全过程的仿真分析，研究了二滩拱坝从施工期到运行期的变形和应力发展过程。

Safety monitoringmodel of Lijiaxia Arch Dam basedon Recurrent Network with bias elements is established, its prediction precision is better than conventional statistical model.

建立了基于带有偏差单元的递归神经网络的李家峡拱坝安全监控模型，其预报精度优于常规的统计模型，为大坝安全监控提供了一条有效的思路和方法

A brief account is given of the problem in traditional high arch dam safety evaluation without considering the randomness and without failure mode analyzing.

简述了高拱坝传统安全评价中不考虑随机性、不进行失效模式分析等存在问题，提出应用失效概率与风险值两个指标对高拱坝进行安全评价。

A study was performed of the randomness of external loads on high arch dams,including flood,earthquake,landslide of mountains,etc.,the weakening of concrete strength of arch dams and rock strength of dam foundation,and the fuzziness of evaluation criterion.The disadvantages of conventional deterministic assessment methods for the safety of arch dams based on the strength theory and stability theory were analyzed respectively.It is suggested that fuzzy mathematics theory should be introduced to safety evalua...

研究高拱坝洪水、地震、山体滑坡等外载荷，坝身混凝土、坝基岩石材料强度弱化等的随机性，以及评价准则的模糊性；分析了高拱坝分别基于强度理论和稳定理论确定性评价方法的不足，提出应该利用模糊数学方法解决具有随机性、模糊性的高拱坝安全评价问题；建立了基于结构可靠度理论的高拱坝失效概率故障树模型并给出了具体算例。

The water diversion system for the Laxiwa Hydropower Station is arranged in the mountainous body on the right-bank of the Arch Dam.

拉西瓦水电站引水发电系统布置在拱坝右岸山体内，原1、2号进水口为低位进水口，原定1、2号机组先发电。

Xiaowan arch dam site has excellent topographic conditions, while geological structures in both abutments are complex, such as, faults, altered rock, mantle rock, etc.

在建的小湾水电站坝址具备修建高拱坝的优越地形条件，但地处西南地区著名的&三江构造带&的南段，地质构造较复杂，坝基及坝肩抗力体内存在部分断层、蚀变岩体和卸荷、风化岩体等地质缺陷，将引起两岸坝肩岩体变形不对称、压缩变形量增大以及坝肩局部岩体承载能力低，直接影响到拱坝与地基系统的正常运行和整体稳定安全性。

A linear finite element analysis of calculated tensions indicates that the arch dam pulls apart horizontally with a duration of upu to 0.1 seconds, long enough for concrete blocks to slide.

线性有限元分析计算张力表明，拱坝被水平拉开持续时间达到0.1秒，这个时间足以让混凝土块产生滑移。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。