防灾减灾学报
防災減災學報
방재감재학보
JOURNAL OF DISASTER PREVENTION AND REDUCTION
2014年
1期
25-28
,共4页
地震%疲劳%损伤%信号
地震%疲勞%損傷%信號
지진%피로%손상%신호
earthquake%fatigue%damage%signals
探寻将要发生地震的各种信号表征,是预报地震的关键。本文利用材料疲劳损伤的能量计算方法,对地震发生之前承力岩层的疲劳损伤能量变化过程进行了计算分析,结果显示:承力岩层的疲劳损伤能量随着时间时时刻刻发生着变化,但呈现出以一个昼夜(24小时)为周期性的变化规律,在所跟踪的地震发生前几天,对应的疲劳损伤能量都出现过显著增加的过程。
探尋將要髮生地震的各種信號錶徵,是預報地震的關鍵。本文利用材料疲勞損傷的能量計算方法,對地震髮生之前承力巖層的疲勞損傷能量變化過程進行瞭計算分析,結果顯示:承力巖層的疲勞損傷能量隨著時間時時刻刻髮生著變化,但呈現齣以一箇晝夜(24小時)為週期性的變化規律,在所跟蹤的地震髮生前幾天,對應的疲勞損傷能量都齣現過顯著增加的過程。
탐심장요발생지진적각충신호표정,시예보지진적관건。본문이용재료피로손상적능량계산방법,대지진발생지전승력암층적피로손상능량변화과정진행료계산분석,결과현시:승력암층적피로손상능량수착시간시시각각발생착변화,단정현출이일개주야(24소시)위주기성적변화규률,재소근종적지진발생전궤천,대응적피로손상능량도출현과현저증가적과정。
Exploring various signal characterization of earthquake, is the key for earthquake prediction of the natural disasters. In this paper, based on theory of material fatigue damage, the changes for fatigue damage energy of force bearing strata was calculated before the earthquakes by seismic dynamic signals. The changes of bearing rock fatigue damage energy display: fatigue damage energy bearing strata changing with the time all the time; But it has shown in a day (24 hours) for the periodic change rule;And the fatigue damage before the earthquake the energy corresponding appeared significantly increased.