Discuss of the Mechanism of Cave Strain Observation Abnormities Resulted
from Changing Observation Condition Factors at Jiujiang Seismic Station
1 Earthquake Administration of Jiangxi Province, 311 North-Hongdu Road,Nanchang 330039,China
Abstract The strain abnormity magnitude range is 10-9-10-6 from cave temperature’s annual varying, air pressure rising, heavy rainfall, pumping water and unloading of the pressure-bearing aquifer during 2008 to 2013 at Jiujiang seismic station. The mechanisms of cave strain abnormity primarily are the cave material’s temperature effect and extra-stress load-uploading process of the observation hill body. Cave strain observation is sensitive to local stress-stain field, and it may provide the opportunity to capture the strong earthquakes’ precursory abnormity.
Key words ：
cave strain observation
abnormity response
static mechanical model
temperature effect
extra-stress
Received: 24 April 2014
Published: 02 June 2015
Cite this article:
ZHAO Aiping,ZHOU Hongyan. Discuss of the Mechanism of Cave Strain Observation Abnormities Resulted
from Changing Observation Condition Factors at Jiujiang Seismic Station[J]. jgg, 2015, 35(3): 537-542.
ZHAO Aiping,ZHOU Hongyan. Discuss of the Mechanism of Cave Strain Observation Abnormities Resulted
from Changing Observation Condition Factors at Jiujiang Seismic Station[J]. jgg, 2015, 35(3): 537-542.
URL:
http://www.jgg09.com/EN/10.14075/j.jgg.2015.03.041 OR http://www.jgg09.com/EN/Y2015/V35/I3/537
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