助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   earthquake 的翻译结果: 查询用时:0.015秒
图标索引 在分类学科中查询
所有学科
地质学
地球物理学
建筑科学与工程
公路与水路运输
水利水电工程
工业通用技术及设备
安全科学与灾害防治
海洋学
力学
更多类别查询

图标索引 历史查询
 

earthquake     
相关语句
  地震
     URBAN LOCAL EARTHQUAKE DISASTER RISK INDEX & ITS APPLICATION IN SHANGHAI
     城市局部地震灾害危害性指数(ULEDRI)及其在上海市的应用
短句来源
     On Lateral Seismic Response of Pile Foundation Induced by Far-Field Earthquake
     远场地震作用下桩基的横向地震响应研究
短句来源
     Non-linear Earthquake Response Analysis on Multi-ribbed Slab with Light Frame Structure
     密肋璧板轻框结构非线性地震反应分析
短句来源
     Mechanics Properties of Rubber Bearings and Earthquake Response Analysis of Isolated Structure
     橡胶隔震支座力学性能及隔震结构地震反应分析研究
短句来源
     Laboratory Study on Large Ground Deformation Induced by Earthquake Liquefaction
     地震液化引起的地面大变形试验研究
短句来源
更多       
  
     Mechanics Properties of Rubber Bearings and Earthquake Response Analysis of Isolated Structure
     橡胶隔支座力学性能及隔结构地反应分析研究
短句来源
     Research on Seismogenic Structure and Fracture Characteristics of the 2003 Delingha, Qinghai, M6.7 Earthquake Sequence
     2003年青海德令哈6.7级地序列的发构造及破裂特征研究
短句来源
     THE DETERMINATION OF EARTHQUAKE MAGNITUDE BY USE OF AMPLITUDE AND PERIOD OF THE PKP WAVES
     論用PKP波測定极远地
短句来源
     SOURCE MULTIPLICITY OF THE MAIN SHOCK OF THE YONG SHAN-DA GUAN (永善—大关) YUNNAN EARTHQUAKE OF MAY 10, 1974
     1974年5月10日云南省永善—大关主的多重性
短句来源
     ON THE RELATIONSHIP BETWEEN THE NINGHE 6.9 AFTERSHOCK AND THE TANGSHAN EARTHQUAKE FROM THE VIEWPOINT OF SEISMOTECTONICS
     从地构造看宁河6.9级余与唐山主的关系
短句来源
更多       
  级地震
     Research on Seismogenic Structure and Fracture Characteristics of the 2003 Delingha, Qinghai, M6.7 Earthquake Sequence
     2003年青海德令哈6.7级地震序列的发震构造及破裂特征研究
短句来源
     THE CHARACTERISTICS OF LUHUO (炉霍)EARTHQUAKE (M=7.9) AND THE SEISMICITY OF THIS REGION
     炉霍7.9级地震特征和该区的地震活动性
短句来源
     A PRELIMINARY STUDY ON THE CHARACTERISTICS OF THE GROUND FRACTURES DURING THE LU-HUO (炉霍) M=7.9 EARTHQUAKE, 1973 AND THE ORIGIN OF THE EARTHQUAKE
     1973年炉霍7.9级地震的地裂缝特征及地震成因的初步探讨
短句来源
     SOURCE PARAMETERS FOR SMALL EARTHQUAKES BEFORE AND AFTER THE M=7.8TANGSHAN(唐山)EARTHQUAKE
     唐山7.8级地震前后微震震源参数
短句来源
     An Observational Study of Seismic Acoustic Emissions of Alter-shocks of the M=7.8 Tangshan Earthquake
     唐山7.8级地震余震期间地震声发射的观测研究
短句来源
更多       
  抗震
     Concrete Block Structural Non-Linear Earthquake Response Analysis and Performance Based Seismic Design Methodology
     混凝土砌块结构非线性地震反应分析及基于性能的抗震设计方法
短句来源
     The Earthquake Hydroelastic Response Analysis of the Liquid Storage Tanks
     贮液罐结构水弹性抗震分析
短句来源
     An Analysis of the Damage of Slope Sliding by Earthquake of the Paiho Main Dam and its Earthquake Resistant Strengthening
     白河主坝地震滑坡的震害分析及抗震加固
短句来源
     Calculating Methods of Strengthening and Repair of Brick Masonry Structures for Earthquake Resistance
     砖结构抗震修复加固计算
短句来源
     FUZZY SYNTHETIC EVALUATION OF EARTHQUAKE INTENSITY AND ITS APPLICATION TO STRUCTURAL DESIGN
     地震烈度的模糊综合评定及其在抗震结构设计中的应用
短句来源
更多       

 

查询“earthquake”译词为其他词的双语例句

 

查询“earthquake”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
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。
  earthquake
Earthquake analysis of arch and gravity dams including the effects of foundation inhomogeneity
      
Dam-foundation interaction plays an important role in the design of earthquake-resistant concrete arch and gravity dams.
      
It was found that a homogeneous idealization of the unbounded foundation may sometimes greatly underestimate the maximum earthquake stress response of the dam.
      
Therefore, taking into account the effect of foundation inhomogeneity for the earthquake safety assessment of concrete arch and gravity dams has great significance.
      
Three damage states were constituted according the results of the experiment by Pacific Earthquake Engineering Research (PEER) Center.
      
更多          


Ⅰ. The Yinshan district as an example of "activizing region" in the Chinese platform One of the most typical localities that show clearly the phenomenon of"activization of platform" (активи. зация платформы) is the Yinshan region, aneast western mountain range on the border between the North-China plain andthe Mongolian plateau. It has long been recognized as a platform because ofthe presence of a folded foundation Pre-Sinian in age. However, owing to thefacts that Mesozoic crustal movements and magmatic activities...

Ⅰ. The Yinshan district as an example of "activizing region" in the Chinese platform One of the most typical localities that show clearly the phenomenon of"activization of platform" (активи. зация платформы) is the Yinshan region, aneast western mountain range on the border between the North-China plain andthe Mongolian plateau. It has long been recognized as a platform because ofthe presence of a folded foundation Pre-Sinian in age. However, owing to thefacts that Mesozoic crustal movements and magmatic activities are importantwithin this area, some geologists including G Schoenmann, hold that it is ageosynclinal region. It is Ю. М Шейманн who first noticed the phenomenon of activizationappearing in the Chinese platform. В. М. Синицын in his "Строенив и развитиекитайской платформы" indicates that some of the mountain ranges includingYinshan, which have been formerly referred to the folding belts developingfrom geosynclines, are in fact the internal structures of the Chinese platform. In this paper the writer after the opinion of В. М. Синицын, assigns theYinshan area as one of the "activizing regions" in the Chinese platform, andgives more detailed descriptions and discussions mainly on the point of thehistory of its stratigraphic development. Really it is a fact that the Yinshan region has an old folded foundationwhich is composed of metamorphic complex including chiefly gneisses, schists,and old granitic intrusions apparently Pre-Sinian in age. Since the formationof this folded foundation during the Luliang movement (=Goto-Karelian mo-vement), the old land of the Yinshan region has "activized" or "resurrected"several times. As early as in the Sinian period, a depression prolonging in E-Wdirection happened on its southern border, where Sinian limestone 900 metresin thickness and in some places up to 9,620 metres was so deposited. During a long time of the Palaeozoic era, the Yinshan old land was in the poriod ofdenudation except some Cambrian marine limestones only 144 metres in thick-ness deposited in the western part. At the end of the Palaeozoic era, local acti-vization with the formation of continental basin-deposits of Permian age, up to1,380 metres in thickness, as found in the Tachingshan area again happened.In the middle Mesozoic era, the Yinshan region came to a period of strongactivity. Structural depressions duo to "Процесс аркогенеза" occurred universallywithin the whole area and magmatie activities in large magnitude associatedthis crustal movement, so that a great sequence of freshwater basin-depositswith intercalations of volcanic beds, up to 8,000 metres in total thickness wereformed. During the formation of these strata, especially at the end of Mesozoic,interruptions of depositon happened frequently, folds and thrusts were abund-antly formed, and intrusive bodies of "young granite" were produced hereand there. In the Tertiary period, the Yinshan region was violently faulted, andvolcanic activities still happened, producing the basalt lava flow spreading ina wide area. The activity of the Yinshan old land has not ceased even to-dayas shown by the facte that its whole area is in the process of uplift and by thepresence of an earthquake zone known in the historical time. Ⅱ. To what Geotectonic Unit does the Southeastern Coastal Region of China Belong? On the Southeastern coast of China there is a district where geotectoniccharacteristics have never been recognized clearly. It is A. W. Grabau who firstreferred it to an old land named "Cathaysia". J. S. Lee holds the same opinion.In his geotectonic map of China, B. M. Синицын also assigns this region to aplatform and marks it as a part of his "Южно-китайский платформенный массив".However, there is still another opinion opposed to this. A. C. Хоминтовский, forinstance, renders recently this district to a geosynclinal region and proposes thename "Minche Pacific folding zone" for it. H. T. Yang and T. Y. Yu agreewith him. In the year 1954, the writer in his compilation-work connected with thegeology of Fukien and Kwangtung, found that the geotectonic characteristics ofthe southeastern coastal region of China are not only unagreeable with thosefound in a common platform on the one hand, but also contrasting, with thoseof a geosynclinal region on the other. In fact, it cannot be referred suitably toany geotectonic unit except to the intermediate type as shown by the history ofits geological development. Apparently it is an "activizing" or "resurrected" platform. During the Pre-Sinian crustal movement (the Luliang movement), a foldedfoundation composed of old gneisses, schists, and phyllites was completely for-med. Obviously this is a part of the broad old land of Southern China. In the earlier stage of the Palaeozoic era, the whole area of this region wasexposed in the air and under denudation. Hence, no deposit of any kind wasformed. After the Caledonian movement, depressions happened in the western partof this region, where the Devonian-Lower carboniferous continental deposit, theNanching series consisting mainly of quartzite, conglomerate and shale has beenformed, but the other parts were still under denudation. These facts show thatthis region was still a land at that time. Uralian and Lower Permian limestones, known respectively as the Chuan-shan limestone and the Chihsia limestone, separated from each other by adisconformity, spread widely in this region. This indicates that the marine trans-gressions really happened in the southeastern coastal region of China. However,the thicknesses of these limestones (only 30 metres and 150 metres respectively)and their uniformity in the horizontal direction show that the sea at thosetimes was shallow, and the magnitude of subsidence of the earth crust withinthis region was small. The unnoticed lateral changing of lithological charactersof these limestones proves the same fact. Undoubtedly these limestones arenothing but the marine deposits of platform-type. From Upper Permian toTriassic, this region was under a condition of alternation of transgression andregression of the sea. Owing to the fact that the amplitude of oscillation of theearth crust of this region at that time was small, the deposits formed duringthe marine transgression were thin and interrupted again and again by disconfor-mities (or even unconformities). Sometimes continental deposits are intercalated. Since the later period of Triassic, the southeastern coastal region has neverbeen covered by the sea again. And, a new condition began to happen in LowerJurassic. Here, the old land became to "resurrected", so that a series of depres-sing belts were formed as a result of "Процесс аркогенеза". In association withthe subsidence of these depressions, continental beds with a total thicknessup to 3,000 metres were deposited. In the beds interruptions frequently occurred.Folds were abundants, although they or at least some of them were intermediatetype. At the same time, magmatic activities were significant. Itappearedfirstly in the form of volcanic eruptions as recorded by a great sequence of beds consisting of tuff and rhyolite intercalating in the continental bedsmentioned above. And then, at the end of the Mesozoic, numerous graniticbodies were produced. Coming to the Cenozoic era, this region still sufferedfrom rather strong crustal movements accompanied by basalt lava eruptions. Theactivity of the old land has not yet been ceased even to-day as marked by thepresence of a famous earthquake zone between Kwangtung and Fukien, and theabundance of hot springs which widely spread within this region. All theseshow the typical characters of an "activizing" or "resurrected" platform. Final-ly, the complexity of the types of mineral deposits found in Fukien and Kwang-tung also proves the geotectonic nature of this region. Summarizing the whole matter, we may say that the southeastern coastalregion of China was originally an old land. Although it has been agian andagain submerged by the sea, the resulting marine deposits are entirely differentfrom those of geosynclinal region. In the middle of Mesozoic, this region beganto be active violently again, producing a series of depressions or "secondarygeosynclines", in which thick continental beds were deposited, and, at the sametime, folds of intermediate type, serious volcanic eruptions and magmatic intru-sions were produced. Hence, to refer the southeastern coastal region of China toan "activizing" platform is quite strongly proved. The northwestern boundary of this "activizing" platform is generally onthe line starting from central Chekiang through central Kiangsi to the Sou-thwestern part of Kwangtung, because the history and characteristics of geolo-gical development of the Southeastern Kiangsi and Central-southern Kwangtungare quite similar to those of Fukien and Eastern Kwangtung. As to the nomination of this geotectonic unit, the writer proposes to callit "Cathaysian activizing region". This name is derived from the "Cathaysia"of A. W. Grabau but adds, according to necessity, the meaning of activizing or"resurrected" characters of this region. The so-called "Minche Pacific foldingzone" of A. C. Хоминтовский is obviously unacceptable because it entirely doesnot coincide with fact. Compared with the "aetivizing" platforms found in other parts of theworld, the Cathaysian coastal "activizing" platform has its own characteristics,especially shown by the presence of numerous, widely spread, small depressionsor "secondary geosynclines", and the acidic magmatic activities appearing on alarge scale. All these indicate that this is a special type differing from all theknown "activizing

~~

Maps purporting to show the distribution of seismicity are generally based on histroical data or results of instrumental seismology or both and sometimes associated with the geological evidence that may account for the cause of earthquake. The present work was based on a large body of materials. For the historical data, we have traced back to three thousand years. In Chinese historical anuals as well as other literary works, there is a wealth of informations on earthquakes in ancient China. It is...

Maps purporting to show the distribution of seismicity are generally based on histroical data or results of instrumental seismology or both and sometimes associated with the geological evidence that may account for the cause of earthquake. The present work was based on a large body of materials. For the historical data, we have traced back to three thousand years. In Chinese historical anuals as well as other literary works, there is a wealth of informations on earthquakes in ancient China. It is a formidable task to look over thousands of volumes page by page, but it has been eompleted by The Third Institute of History, Academia Sinica.

为国家工業建設地点提供地震参考資料,和全国地震危險地区的划分,是中国科学院地球物理研究所解放以来重点工作之一,承各方面的协助,笔者和徐煜坚等九人在苏联顧問帮助下編成了我国的“全国地震区域划分圖”。現在提出,作簡单的說明,請讀者提意見,以便作进一步的修正。

In this paper, a survey is made over the existing theories of seismic forces onstructures. It is found that all the theories fall into one of the following cate-gories: 1) the so-called "statical theory" which considers the structure subject toan equivalent constant acceleration; 2) theories based upon simulated simplified ground motions; 3) theories based upon recorded actual ground motions; 4) theories based upon random impulses. Critical comments have been given to the above theories, especially to thefourth...

In this paper, a survey is made over the existing theories of seismic forces onstructures. It is found that all the theories fall into one of the following cate-gories: 1) the so-called "statical theory" which considers the structure subject toan equivalent constant acceleration; 2) theories based upon simulated simplified ground motions; 3) theories based upon recorded actual ground motions; 4) theories based upon random impulses. Critical comments have been given to the above theories, especially to thefourth one. The writer further gives a brief but cpmplete description of the responsespectra of the structure and on this basis, all the theories are co-related. Computations made by G. W. Housner for major American earthquakes dis-close that the acceleration spectra for damped system are flat curves withoutoutstanding peak value. For this reason, the writer deems that for certain typeof structures, variation of the acceleration spectral value for different modes of vibration will be small, and may be taken approximately as a constant. As aresult, the seismic forces reduce to this constant spectral acceleration times the.mass of the structure. It is suggested to use this method for estimatingthe base shear but make proper adjustment in its distribution along the height ofthe structure. It is also proposed to tie up this spectral acceleration to the earth-quake intensity scale. Finally, the writer stresses that further development of the theory of seismicforces on structures depends upon researches along following lings: 1) strong-motion program; 2) dynamical properties of structures and materials; 3) effectsof foundation conditions; 4) vertical and torsional seismic forces; 5) co-relationbetween seismic forces and earthquake intensity.

本文回顾了关于建筑物地震力的理论的发展过程,对于现行的几种理论进行了评论;认为在我国目前条件之下,可以采用一种基于动力原则的地震力系数;最后对今后的研究方向提供了一些意见。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关earthquake的内容
在知识搜索中查有关earthquake的内容
在数字搜索中查有关earthquake的内容
在概念知识元中查有关earthquake的内容
在学术趋势中查有关earthquake的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社