ON CHARACTERISTICS OF WAVE VELOCITY RATIO IN BADONG AREASINCE SECOND IMPOUNDMENT OF THREE GORGES RESERVOIR
Chen Junhua;Wang Dun; Li Yin ;and Xue Junrong
Institute of Seismology, CEA, Wuhan 430071
Abstract The characteristics of wave velocity ratio of microearthquakes in Badong area since the second impoundment of Three Gorges reservoir are studied. The results show that the wave velocity ratio decreases before an earthquake and increases after the earthquake.The variations of wave velocity ratio reflect the microcrack failure and corrosion of the medium in the focal region caused by water before and after an earthquake.
Key words ：
second impoundment of Three Gorges Reservoir
Badong area
wave velocity ratio(WVR)
characteristics of veriation
imminent prediction
Received: 01 January 1900
Corresponding Authors:
Chen Junhua
Cite this article:
Chen Junhua,Wang Dun,Li Yin et al. ON CHARACTERISTICS OF WAVE VELOCITY RATIO IN BADONG AREASINCE SECOND IMPOUNDMENT OF THREE GORGES RESERVOIR[J]. , 2007, 27(增刊): 28-31.
Chen Junhua,Wang Dun,Li Yin et al. ON CHARACTERISTICS OF WAVE VELOCITY RATIO IN BADONG AREASINCE SECOND IMPOUNDMENT OF THREE GORGES RESERVOIR[J]. jgg, 2007, 27(增刊): 28-31.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2007/V27/I增刊/28
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