AN EXPERIMENTAL STUDY ON FLEXIBLE OBSERVATION PIERS OF GNSS
Wu Peizhi1) ;Xu Ping1) ;Zhao Guiru 2) ;Xing Chengqi1) ;Zhang Zhongwu1) ;1) ;Bai Yongfu1) ;Hu Leyin1) ; and Yin Jiyao3)
1)Earthquake Administration of Beijing Municipality,Beijing 100038;2)China Earthquake Networks Center,Beijing 100045;3)Earthquake Administration of Shanghai Municipality, Shanghai 200062
Abstract On the basis of the requirement of the observation piers to have the ability to work for the GNSS continuous observation in the nonearthquake period and to reduce the recordable ground displacement threshold in the earthquake period, we designed and built 3 flexible GNSS observation piers with the dual drum sinkingmode at Dongsanqi station. With these three flexible observation piers, we carried out the continuous observation several months in the same environment and the same time period. Through examining the results which solved in the same conditions, we have found that the flexible GNSS observation piers with the dual drum sinkingmode are able to be used in the continuous observations. At the same time, the shock and pulse experiments results shown that the inverted pendulum type observation piers for testing have the amplification ability. The amplification ability of this type of piers proved the possibility to reduce the recordable ground displacement threshold. Considering that there were no earthquakes more than \%M\%3.0 in the testing area in the testing period, some more detailed study will be took out in the future.
Key words ：
GNSS
observation piers
rigidity
flexible
ground displacement
Received: 01 January 1900
Corresponding Authors:
Wu Peizhi
Cite this article:
Wu Peizhi,Xu Ping,Zhao Guiru et al. AN EXPERIMENTAL STUDY ON FLEXIBLE OBSERVATION PIERS OF GNSS[J]. , 2012, 32(5): 143-147.
Wu Peizhi,Xu Ping,Zhao Guiru et al. AN EXPERIMENTAL STUDY ON FLEXIBLE OBSERVATION PIERS OF GNSS[J]. jgg, 2012, 32(5): 143-147.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2012/V32/I5/143
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