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可信地震
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  相似匹配句对
     An Earthquake
     地震
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     Earthquake
     地震
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     The Design of the Trusted Operating System
     可信操作系统的设计
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     Research on Trusted Computing
     可信计算研究
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     Only after the reliability and reality of historical earthquake record are insured, the historical earthquake parameters obtained thereafter would be reliable and useful.
     在历史地震记载的真实性、可靠性确定之后,确定的地震参数才可信、可用。
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  credible earthquake
Since the recurrence time of maximum credible earthquake can not be estimated directly from mb, empirical relationships for different seismotectonic provinces are established to convert mb to Ms, which is a suitable magnitude scale for our purpose.
      
Peak ground acceleration (PGA) values at the seven coastal cities due to the maximum credible earthquake on the relevant source are also obtained.
      
The response spectra for the operating basis earthquake (OBE) and the maximum credible earthquake (MCE) were used in the dynamic analysis.
      
The paper presents the determination of maximum credible earthquake (MCE) and generation of synthetic acceleration time history plot for the Bangalore region.
      
Maximum credible earthquake found in terms of moment magnitude is 5.1 with PGA value of 0.146?g at city centre with assuming the hypo central distance of 15.88?km from the focal point.
      
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Based on field observation of high density digital seismograph and tidal deformation network of meso-scaleseismological experimental site,two strong mining earthquakes in Laohutai coal mine were monitored continuously.The data of strong mining earthquake process is analyzed by seismological methods and wavelet tools,anomalous in-formation on strong mining earthquake is extracted in the short-term and impending stages.By means of focal mecha-nism solution of regional strong earthquake,focal mechanism solution...

Based on field observation of high density digital seismograph and tidal deformation network of meso-scaleseismological experimental site,two strong mining earthquakes in Laohutai coal mine were monitored continuously.The data of strong mining earthquake process is analyzed by seismological methods and wavelet tools,anomalous in-formation on strong mining earthquake is extracted in the short-term and impending stages.By means of focal mecha-nism solution of regional strong earthquake,focal mechanism solution of strong mining earthquake,focus investiga-tion at the nearest field,focus location of high precision,site absolute stress measurement and 3D finite difference nu-merical test,the seismogenic conditions and focal mechanism of strong mining earthquake are analyzed.With the helpof quantitative observation of relativity between mining activity and mining earthquake,analysis is carried out on theinduced factors of mining earthquake.The study points on that the mechanism being of geological structural environ-ment,the stress field and mining activity worked together to induce mining earthquake,and that local stress field playan important role in seismogenic process,that discharged gravitational stress field or coupling of high pressure gasexpand is primary,when induced the mining earthquakes.The consanguineous relativity between mining-inducedearthquakes and gas are found in deep mining,a new kind of mining-induced earthquake induced by coupling of exploi-tation discharge and high pressure gas expand maybe exist.Believable b value,η value,frequency and V_p/V_s ratioseismological anomalies and fixed point tidal deformation anomalies have been extraeted before strong mining earth-quake in the short-term and impending stages.Extraction methods of anomalous information and forecast of strongmining earthquake in the short-term and impending stages are discussed.

基于中尺度地震实验场高密度数字地震和前兆台网对抚顺老虎台矿两次强矿震进行连续的现场观测,用地震学方法和小波工具分析强矿震孕震过程采集到的数据,提取短临阶段的异常信息;用区域强震震源机制解、强矿震的震源机制解、极近场震源调查、震源高精度定位、现场绝对地应力测量、三维有限差分数值试验方法,分析强矿震的孕震应力场环境和震源机制;通过定量观察采矿与矿震活动的相关性,分析强矿震的直接诱发原因.提出地质构造环境、地应力场和采矿活动共同作用诱发强矿震的机理和局部应力场在孕育该震过程起主导作用、卸荷重力应力场抑或耦合了高压瓦斯的膨胀起主要诱发作用的观点;发现煤炭深部开采条件下,矿震和瓦斯存在密切的相关性,有可能存在一种开采卸荷和高压瓦斯气体膨胀耦合作用诱发的新型矿震——卸胀耦合型矿震;提取到震前短临阶段存在的b6值、η值、频次、波速比等可信的地震学异常和定点潮汐形变前兆异常,对异常信息的提取方法和强矿震短临阶段的预测进行了探讨.

The hydro geological outline in Baijiatan district was introduced in this paper.The geothermal observational well data in Baijiatan seismic station for seven years have been analyzed by use of two order difference method.The information hiding in data had been extracted in time domain.Finally,we have discussed the effect of the geothermal variation anomaly to the seismic genesis.

介绍了白家疃地区的水文地质概况。利用二阶差分法处理了白家疃地震台地热观测井七年的地热观测资料,在时间域中提取出较为可信的地震前兆信息。探讨了地热异常变化对地震发生的影响。

The Three Gorges Project(TGP) on the Yangtze River is the largest water resources project in the world;it is now attracting the worldwide attention.Possessing comprehensive utilization benefits mainly for flood control,power generation and navigation improvement,TGP will be a vital important and backbone project in harnessing and developing of the Yangtze River.The Three Gorges Reservoir has been formed initially;in pace with the water level raising,the storage capacity enlarged;the possibility of reservoir...

The Three Gorges Project(TGP) on the Yangtze River is the largest water resources project in the world;it is now attracting the worldwide attention.Possessing comprehensive utilization benefits mainly for flood control,power generation and navigation improvement,TGP will be a vital important and backbone project in harnessing and developing of the Yangtze River.The Three Gorges Reservoir has been formed initially;in pace with the water level raising,the storage capacity enlarged;the possibility of reservoir induced earthquake also raised;the highest intensity of induced earthquake would be less than Ⅵ°,and no influence for Ⅷ° designed TGP.However,we must enhance the study,monitors and forecasts of the induced earthquakes,prevent seismic and geological calamities,ensure the safe construction and operation of TGP,set up the harmonious society,guarantee the long period of peace and order.This article collected the long-term earthquake study,monitor and forecast materials of both inside and outside the country as well as the Three Gorges Reservoir,gave a summary of the Three Gorges Reservoir induced earthquake study for your reference and comments.

三峡水利枢纽规模宏大,举世瞩目,具有巨大的防洪、发电、航运等综合效益,是开发治理长江的骨干工程.三峡工程已于2003年6月蓄水、永久船闸通航,7月第一批机组发电;2009年全部工程竣工投产.三峡水库已初步形成,随着蓄水位上升,库容加大,诱发水库地震的可能性也将加大.根据最大历史地震震级并适当加权,确定库区最大可信地震为6级左右.在仙女山和九湾溪断裂一带(距坝址为18 km)存在诱发地震的可能,震级MS=5.0~5.8级.对坝址所受影响烈度为Ⅵ度,不会对按烈度Ⅶ度设防的枢纽主要建筑物构成直接威胁.必须加强对三峡水库诱发地震的研究、监测及预报,预防地震及地质灾害,确保工程建设及运行安全,构建和谐社会,确保长治久安.本文搜集国内外及三峡水库有关地震研究、监测及预报资料,对三峡水库诱发地震研究进行综述,供参阅指正.

 
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