seismic 地震(40784)   地震     Nonlinear Seismic Response Analysis of High Arch Dams with Joints     有横缝高拱坝的非线性地震响应分析 短句来源     The Analyses of Seismic Response of High Concrete Dam-Compressible Water-Sediment-Foundation Systems     高混凝土坝—可压缩库水—淤砂—地基系统地震反应分析研究 短句来源     Study on Visualizing Methods for Data of Dam Seismic Response     大坝地震反应数据场可视化方法研究 短句来源     Nonlinear Probabilistic Dynamic Response Analysis of Effective Stress of Earth Dams under Nonstationary Seismic Loadings     非平稳随机地震下堤坝非线性有效应力动力响应可靠度分析 短句来源     A Study of Numerical Method for Evaluating Seismically-Induced Permanent Deformation and Seismic Stability of Earth and Rock-Fill Dams     土石坝地震永久变形及抗震稳定性数值分析方法研究 短句来源 更多          “seismic”译为未确定词的双语例句     STUDY OF SEISMIC TORSION SHEAR POREWATER PRESSURE IN SATURATED SAND     饱和砂土振动扭剪孔隙水压力的研究 短句来源     Architectural Design Procedures of Hydropower Stations in the Highly Seismic Region     高震区几座水电站建筑物的设计方法 短句来源     Computing methods and model study of the lateral seismic loading of simple supported beam bridge     简支梁桥横向地震力计算方法及模型研究 短句来源     Study on Some Problems in Seismic Stability Analysis for High Earth-Rock Dams     高土石坝抗振稳定分析中几个问题的探讨 短句来源     Study on influence factors of seismic pore water pressure in earth-rock dams     土石坝振动孔压影响因素的研究 短句来源 更多        查询“seismic”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   seismic The seismic property of reef flat in the Changxing-Feixianguan Formation, Northwest Sichuan Province, China 例句来源       Stress centralization will, in turn, cause a lot of fractures and faults to develop, and ultimately, result in a gas chimney, which is a seismic smear zone beneath or above the reef flat. 例句来源       By analyzing the seismic features of all known gas fields, a model to predict carbonate reservoirs has been set up. 例句来源       By using data on the 1:100 000 aeromagnetic anomalies of the Sulu orogenic belt, we designed three simulated geotraverses, in which deep seismic reflection and other geophysical investigations have been completed. 例句来源       The principal mark of the seismite is the development of all kinds of soft sedimentary deformation structures, such as micro-step fault, intraformational minor fold, deformation, vibrational liquefied sandstone dike and seismic breccias. 例句来源       更多                    The protective layer of the Paiho earthdam at the Miyun Reservoir slid during an earthquake in 1976. The scope and features of the slide are described in this paper. An analysis of the accelerograph obtained at the dam site and the earthquake response of the dam is also presented. According to the component and density of the sandy-gravel material of the protective layer, and the results of dynamic triaxial tests conducted on its fine parts, it has been indicated that the material is of the type that is ea...             １９７６年地震时密云水库白河土坝保护层发生滑坡。文中阐述滑坡的范围和形态，对坝上取得的地震记录和地震过程中大坝的反应做了分析。 根据保护层砂砾料的组成、密度和细料的三轴动力试验成果指出这种料属于易液化料，在地震荷载作用下由于孔隙水压力的升高而使抗剪强度大幅度降低是这次滑坡的主要原因。考虑砂砾料液化的边坡稳定分析资料证实这一结论。 文中最后介绍了大坝的加固措施，并对地震区砂砾料筑坝问题提出了若干观点和建议。 文摘来源          In this paper a discussion on the adoption of the seismic coefficients and on safety evaluation in aseismatic design of gravity dams on rock foundations is presented.The discussion is based on further investigations the seismic response of the Xinfengjiang Dam, the Koyna Dam and some other gravity dams selected.In aseismatic design of gravity dams, usually based on static method or so-called pseudo-static method using conventional seismic coefficients and static parameters for calculating ...             本文在通过对新丰江和柯依那(Koyna)大坝的震害情况进一步分析,和选择了其它一些重力坝进行研究后,提出了岩基上重力坝抗震设计地震系数的采用及安全性估算的意见. 在重力坝的抗震设计中,按照静力法或拟静力法和经验的地震系数、抗剪强度的静力指标检验大坝的抗滑稳定性,是可以得到基本估计的,但还存在某些问题;尤其是,在进行坝体强度校核时,往往会使人产生误解.因此,作者认为有必要采用动力分析法和预计的设计坝基地震系数,以估算地震荷载和应力,并与正常荷载的情况组合,取强度的静力指标作出比较,才能得到近乎合理的安全估算. 文中着重研究了大坝滑动稳定性问题,提出了抗震的稳定相对安全率的概念,它有助于揭示地震时大坝抗滑稳定的变化规律,并作出安全的估算. 在分析时,将坝体和库水作为有限单元的集合体,考虑了坝体与库水在振动时耦合作用,按反应谱法和时程法进行动力分析,得出了动力和静力的综合成果. 文摘来源          A major slide failure took place in the upstream gravelly sand shell of the Beihe earth dam during the Tangshan earthquake on July 28, 1976. The dam has a sloping core and the failed shell is only about 5m thick. In this paper two-dimensional effective stress seismic analysis is used to clarify the main features of this failure. The analytical procedure and stress-strain model used for this analysis are presented in detail. Comprhensive information about the static and dynamic performance of dams, inc...             本文采用二维有效应力动力分析方法分析了1976年7月28日唐山地震时密云水库白河主坝斜墙砂砾石保护层滑落的原因。文中对于计算模式和计算方法也作了较系统的阐述。用等参数静力有限单元法计算了白河主坝的非线性静应力,用等参数动力有限单元法计算了非线性动应力、反应加速度、振动孔隙水压力的产生、扩散和消散过程及其不同时刻的分布规律、地震引起的沉降(残余垂直位移)及其与时间的关系。最后,结合算出的孔隙水压力对保护层作了一般的稳定分析。分析结果指明,白河主坝砂砾石保护层滑落的原因是:在地震剪应力作用下保护层内积累了大量的残余孔隙水压力,导致保护层与斜墙接触面的有效应力减小,抗剪强度大量降低之故。 文摘来源   << 更多相关文摘         相关查询: seismic mass seismic level seismic multiples vibration seismic seismic scientific seismic requirements seismic reflectivity seismic clusters seismic groove exploration seismic design seismic seismic amplifiers  对查询结果不满意

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