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超越概率     
相关语句
  exceeding probability
    The research results indicate that the earthquake degree is 6, considering the exceeding probability to be 10 percent in the future 50 years.
    本次工作通过地震危险性分析得到50年10%超越概率时地震计算烈度为6.0度。
短句来源
    This results in conservative fortification and large investment against earthquakes. The third generation seismic division map (1990) gives the intensity under 10% exceeding probability in 50 years. The fourth generation seismic division map (2001) adopted the same exceeding probability.
    我国现行的地震烈度区划图(1990)给出的是未来50年超越概率10%水平下的烈度值,“中国地震动参数区划图(2001)”也采用了相同的超越概率水平。
短句来源
    It can compute the contribution of characterastic earthquakes and possion earthquakes to exceeding probability. Finally it synthetizes both of them as an exceeding probability of potential surface displacement of active fault segments associated with earthquakes.
    评价了特征地震对工程场点位移超越概率的贡献,以及各档泊松地震对工程场点位移超越概率的贡献,最后将以上两种贡献求全概率得出地震活动断层段潜在地表位移超越概率
短句来源
    Through the basic computation above, the following results can be acquired: (1)Any construction site' s exceeding probability on a fault segment or displacement value under some exceeding probability in a period of time.
    通过以上这样一个基本的运算,最终可以求得:①断层段上任何一个工程场点在未来一定时段内,某一超越概率水平下的位移值,或者超越某一位移值的概率。
短句来源
    (2)with the same displacement value, any construction site' s exceeding probability or the location where exceeding probability reachs some value.
    ②断层段上未来一定时段内,在相同位错水平下,任何场点的位移超越概率,或者达到某一位移超越概率的场点相对位置。
短句来源
更多       
  exceedance probability
    In order to meet the needs of anti-seismic design,the time history curve s of bedrock accelerate (exceedance probability is 5% in 50 years,and 2% in 100 years) were compounded.
    为满足水库抗震设计的需要 ,合成了 50年超越概率 5%和 10 0年超越概率 2 %的基岩加速度时程曲线。
短句来源
    In the prediction,the probabilistic approach is used,i. e. probabilistic seismic hazard analysis is first performed based on the coordinates of 55 dams and 59 key embankment points,giving the exceedance probability of intensity I of these structures for a given period T;
    本项预测采用概率方法,首先根据55座土坝和59个重点堤围的座标进行概率地震危险性分析,给出它们在一定预测年限T(取50年和100年)的地震烈度I的超越概率
短句来源
    then, the exceedance probability of different categories of damage for the structures within the predicted period is evaluated by the probabilistic equation,based on the above two results, and the category of damage of these structures is also estimated,taking 10% of the exceedance probability as the criterion.
    然后,根据上述两方面结果用概率公式评价各土坝和堤围卢、在预测年限内各震害等级的超越概率,并取10%超越概率为标准,估计震害等级。
短句来源
    (4) Forthe multiple potential seismic sources, after repeating step(3), we can obtain exceedance probability instudied area in given time Tyears by using statistical method. Therefore, this paper's method not onlykeeps characteristics of former seismic hazard analySis about potential seismic source zonation andearthquake occurrence law, but also absorbs research results of strong seismology about strong groundmotion.
    (4)对于多个潜在震源,重复(3)的步骤,由统计方法可计算出在T年内场地的超越概率.因此,本文提出的方法既保留了以往地震危险性分析关于潜在震源划分、地震发生规律的特点,又充分吸收了强震地震学关于强地面运动的研究成果。
短句来源
  probability of exceedance
    The result suggest that the basic intensity is 7. 3 degree while the given period is 50 years and the probability of exceedance is 0. 1. Accordingly the coefficient ofmaximum seismic effect is 0. 158 which could be the basic parameter for seismic design.
    计算表明,在给定50年工程期限,超越概率为10%时的场地烈度为7.3,相应最大地震影响系数为0.158。
短句来源
    The intensity corresponding to 10% probability of exceedance in 50 years are calculated by using elliptical attenuation of earthquake intensity of western China and mixed model, which includes NB conditional probabilistic model and NB cumulative probabilistic model for characteristic earthquakes, and Segment Poisson Process for medium earthquakes.
    特征地震选用NB模型条件概率和NB累积概率模型,中强震采用中国地震区划图(1990)的分档泊松模型,组成混合地震模型,用中国西部椭圆地震衰减公式,计算了未来50a,超越概率为10%的地震烈度。
短句来源
    For example, under the consideration of quasi-periodical characteristic model, the PGA(peak ground acceleration) value with 10% probability of exceedance in 50 years of this study is about 8% to 70% in difference to that of newly published Seismic Motion Map of China. Under the consideration of low frequency factor, the PGA value is about 8% to 9% lower.
    计算结果表明,采用非均匀模型对地震危险性分析具有一定的影响,对高震级档年发生率较高的潜在震源区有明显的影响。 在本文的算例中,对于汤阴潜在震源区,在50年超越概率10%和2%情况下,在潜在震源区内部与边界附近,采用非均匀模型所获得的PGA与采用均匀模型得到的PGA差别可以达到7~9%。
短句来源
    Seismic parameters and time-distance curves of ground motion under 63%,10% and 3% probability of exceedance are set up by analysis of site seismic risk.
    论文通过地震危险性分析建立起超越概率63%、10%和3%的地震荷载的地震动参数和加速度时程。 利用循环荷载试验得出特殊地基土的动剪切模量、阻尼比与剪应变的关系;
短句来源
    The general geological setting, earthquake generating sources,historical and instrumental seismicities in Pakistan are discussed in this paper. Based on these researches, an estimation of the peak ground acceleration for two cities Karachi and Hyderabad due to the maximum credible earthquakes of faults in 50 years is presented and a zoning map of probability of exceedance in 50 years is 140% is obtained by using of deterministic and probabilistic approaches.
    本文讨论了巴基斯坦的地震构造,潜在震源和历史与现代地震活动性,并在此基础上使用确定性和概率性两种方法计算了各发震断层50年内最大可能的地震在卡拉奇和海得拉巴两城市将引起的地面峰值加速度以及50年内超越概率为14%的等加速度区划图。
短句来源
更多       
  surpassing probability
    ②The latest regionalization map of Chi-na has not the meaning of pure engineering seismology relative to surpassing probability 10%in1950.③A variety of academic contendings before and after forming map may be esplained in a u-nified way.
    ③同时也表明它可能已不再具有与50年超越概率10%相对应的纯粹工程地震学涵义; ③它成图前后在学术上的种种争鸣也许可以得到统一的解释。
短句来源

 

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      exceeding probability
    These results show that expected magnitude and expected distance are related not only to geometry of potential source and magnitude but also to the intensity of the site with certain exceeding probability.
          
    When calculating the occurrence rate of the affected intensity, the difference of the exceeding probability is used.
          
    We have inspected the effects of parameters continuing variation on the result and the effects of exceeding probability and upper bound magnitude of potential source on the parameter sensitivity.
          
    The relative interaction is not great than 10% with annual exceeding probability 2 × 10-3.
          
    The exceeding probability of the map is 10% within 50 years.
          
    更多          
      exceedance probability
    For estimation algorithm optimization, we applied a minimax approach with the risk measure in the form of the exceedance probability of the estimate of a prescribed level by an error.
          
    Quantiles of these distributions are estimated to characterize the levels of water flow and turbidity with a given exceedance probability.
          
    In the latter case, the distribution censored by the non-exceedance probability threshold, FT, was considered.
          
    The usually calculated exceedance probability curves of ground motion are reduced as cumulative probability curves of normal distribution on some assumptions in this paper.
          
    The larger the uncertainty, the flatter the exceedance probability curve is.
          
    更多          
      probability of exceedance
    The models of the bridges in detail including pounding between decks are developed in DRAIN-2DX and nonlinear time history analyses are conducted for a suite of ground motions having 2% probability of exceedance in 50 years in the CSUS.
          
    And the regional sketch maps of the average varying values of intensity and the average relative varying values of peak acceleration with different probability of exceedance in 50 years are drawn in the Chinese mainland.
          
    This paper discusses the relation between two-step seismic design and the standard of probability of exceedance, and the relation of three-levels seismic ground motion parameters given by probability method and comprehensive probability method.
          
    The relative size relations of the ground motions with 2%, 10%, 63% probability of exceedance in 50 years, namely "large earthquake", "moderate earthquake", and "small earthquake", are discussed through a practical example of seismic hazard analysis.
          
    Bayes estimate of the probability of exceedance of annual floods
          
    更多          
      其他


    Based on synthetic analysis of seismogeological data the limiting safe seismic motion (SL2) for the Wentuozi site has been obtained by the seismo-tectonic method, the probability method and the maximum historical earthquake method. The calculating results are 177 cm / s2,175cm / s2 and 89cm / s2 respectively. We take the maximum value among them as SL2(177cm / s2). For safety purpose 200 cm / s2 can be utilized as SL2 for Wentuozi site.The operating safe seismic motion (SL1) which can obtain from selecting larger...

    Based on synthetic analysis of seismogeological data the limiting safe seismic motion (SL2) for the Wentuozi site has been obtained by the seismo-tectonic method, the probability method and the maximum historical earthquake method. The calculating results are 177 cm / s2,175cm / s2 and 89cm / s2 respectively. We take the maximum value among them as SL2(177cm / s2). For safety purpose 200 cm / s2 can be utilized as SL2 for Wentuozi site.The operating safe seismic motion (SL1) which can obtain from selecting larger between the probabilistic calculating result and the half of SL2 is 100cm / s2.

    本文在综合厂址及区域地震地质资料的基础上,采用地震构造法、综合概率法和最大历史地震法分别计算了辽宁核电站温坨子厂址的极限安全地震动(SL2),计算结果分别是177cm/s2,175cm/s2和89cm/s2,取其中的最大值177cm/s2。为安全起见,建议将SL2取值200cm/s2。运行安全地震动(SL1)按50年0.1超越概率和SL2/2选取,采用两者的较大值,确定为100cm/s2。

    The Pearl Delta is prosperous in economy,dense in population and closely distributed with water network,and most of the region are situated in the area of basic seismic intensity Ⅶ.On the Pearl Delta,there are 55 earth dams and embankments in mediu of large scale with a total lenth of several hundred kilometers.It is required to carry out earthquake damage prediction for these earth structures. In the prediction,the probabilistic approach is used,i.e.probabilistic seismic hazard analysis is first performed based...

    The Pearl Delta is prosperous in economy,dense in population and closely distributed with water network,and most of the region are situated in the area of basic seismic intensity Ⅶ.On the Pearl Delta,there are 55 earth dams and embankments in mediu of large scale with a total lenth of several hundred kilometers.It is required to carry out earthquake damage prediction for these earth structures. In the prediction,the probabilistic approach is used,i.e.probabilistic seismic hazard analysis is first performed based on the coordinates of 55 dams and 59 key embankment points,giving the exceedance probability of intensity I of these structures for a given period T;secondly,the probabilistic matrix of damage,showing the vulnerability of these structures is formulated, based on damage information of the structures in different intensity areas in several strong earthqudkes recently occurred in China; then, the exceedance probability of different categories of damage for the structures within the predicted period is evaluated by the probabilistic equation,based on the above two results, and the category of damage of these structures is also estimated,taking 10% of the exceedance probability as the criterion.

    珠江三角洲经济发达,人口众多,水网密布,大部分又属于地震基本烈度7度区。在其范围内有属于大中型水库的土坝55座,堤围总长数百km。有关部门要求对土坝和堤围进行震害预测。本项预测采用概率方法,首先根据55座土坝和59个重点堤围的座标进行概率地震危险性分析,给出它们在一定预测年限T(取50年和100年)的地震烈度I的超越概率;其次根据近年我国发生的几次强震时处于不同烈度区内的土坝和堤防的震害资料,形成表示土坝和土堤地震易损性的震害概率矩阵;然后,根据上述两方面结果用概率公式评价各土坝和堤围卢、在预测年限内各震害等级的超越概率,并取10%超越概率为标准,估计震害等级。

    The general geological setting, earthquake generating sources,historical and instrumental seismicities in Pakistan are discussed in this paper. Based on these researches, an estimation of the peak ground acceleration for two cities Karachi and Hyderabad due to the maximum credible earthquakes of faults in 50 years is presented and a zoning map of probability of exceedance in 50 years is 140% is obtained by using of deterministic and probabilistic approaches.

    本文讨论了巴基斯坦的地震构造,潜在震源和历史与现代地震活动性,并在此基础上使用确定性和概率性两种方法计算了各发震断层50年内最大可能的地震在卡拉奇和海得拉巴两城市将引起的地面峰值加速度以及50年内超越概率为14%的等加速度区划图。

     
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