長周期地震波 的英文怎麼說
中文拼音 [zhǎngzhōuqīdezhènbō]
長周期地震波
英文
long-period seismic wave- 長 : 長Ⅰ形容詞1 (年紀較大) older; elder; senior 2 (排行最大) eldest; oldest Ⅱ名詞(領導人) chief;...
- 周 : Ⅰ名詞1 (圈子; 周圍) circumference; periphery; circuit 2 (星期) week 3 [電學] (周波的簡稱) c...
- 期 : 期名詞[書面語]1. (一周年) a full year; anniversary 2. (一整月) a full month
- 震 : Ⅰ動詞1 (震動) quake; shake; shock; vibrate 2 (情緒過分激動) be greatly excited; be deeply ast...
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
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The seismic signals detected enabled the determination of the epicentres of intense earthquakes when analysed with data obtained by seismographs in other countries. the long - period seismometer now in use at the hong kong observatory headquarters has been in operation for nearly 50 years, since the international geophysical year of 1958
香港天文臺計劃明年購置一臺寬頻地震儀取代長周期地震儀,令地震波的分析及地震定位更精確,亦可收集更豐富的地震數據供建築工程界使用,寬頻地震儀對0These anomalies might be due to the temperature variation of subsurface fluid that caused by transmission of long cycle waves through upper mantle or asthenosphere before the earthquake
水溫異常出現的原因可能是由於地震前的長周期波通過上地幔或軟流層傳播,間接地導致了地下流體溫度發生了微小的變化。The obtained results indicate that compared with the clay layer, the liquefied sand layer takes a decreasing effects on the short period component of the surface ground motion and the effects increase with increasing of the thickness 、 depth and width of the liquefied sand layer ; the liquefied sand layer takes a increasing effects on the long period component of the surface ground motion but the effect is not obviously ; to the input earthquake wave, the demarcation point of strengthens and weaken is about 0. 6s
主要結論為:和同樣的粘土層相比,液化層的存在對地表上地震動的短周期分量主要起減弱作用,且減震效果隨著液化層埋深、厚度的增加而變強;對長周期分量主要起加強作用,但是效果不太明顯;對所輸入的地震波來說加強減弱的分界點所對應周期為0 . 6s左右。On the other hand, the calculation on difference earthquake wave show : the spectrum of earthquake wave will affect dynamic property of structure like long period of xiao wan dam
另外,不同性質的地震動輸入所得的計算結果表明,地震波的頻譜特性對于小灣大壩這樣的長周期結構的動力反應特別是位移反應有明顯的影響。According to the different response under different earthquake waves, the paper discussed the long - period character of the isolation structure. the results of analysis indicates that the isolation structure has better effect for the earthquake wave which was dominated of short - period wave
針對隔震結構在不同地震波下響應的特徵和程度的不同,本文對隔震結構的長周期效應進行了分析和探討,並提出了隔震結構時程分析計算時地震波選取的建議和方法。分享友人