A REVIEW OF COMPONENT BOREHOLE OBSERVATION OF STRESS-STRAIN IN CHINA
Qiu Zehua
Institute of Crustal Dynamics, CEA, Beijing 100085
Abstract The practice of continuously monitoring ground stress with the purpose to forecast earthquakes in China was initially led by Li Siguang. The early observation using piezomagnetic sensors attempted to measure stress directly. It had a basic disagreement in design from the viewpoint of elastic theory: piezomagnetic sensors measure force but displacement. Revolution took place both in theory and practice in 1977, which had paved the way for the socalled 4component borehole strainmeter to take over. However, mistakes have happened from time to time about this type of observation during the whole progress. The saying that stress can not be measured is groundless.
Key words ：
]borehole strain observation
piezomagnetic borehole stress observation
4component borehole strainmeter
selfcheck function
Wuhu meeting
Received: 01 January 1900
Corresponding Authors:
Qiu Zehua
[1]
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[2]
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[3]
HU Zhifei，ZHANG Kanghua，TIAN Jiayong. A Review of In-Situ Calibration Method for Borehole Strainmeter Observation
[4]
CHEN Tao,DONG Lei,TANG Xiaoyong. Reliability Test and Analysis of Borehole Strain Data in Chongqing Area of the Three Gorges
[5]
LU Shuangling,HAO Junli,MENG Jianguo,LI Huiling,LIN Xiuna,WANG Zheng,YU Qingmin,WANG Yan,LI Anning. Reliability Testing of Component Borehole Strain Meter and Volumetric Strain Meter and Comparative Analysis on Data Impacted by Special Events
[6]
TANG Lei,LV Pinji. The Self-Test Analysis of 4-Component Borehole Strain Observation
Data in Different Time Scales
[7]
QIU Zehua,YANG Guang,TANG Lei,GUO Yanping,ZHANG Baohong. Abnormal Strain Changes Prior to the M7.0 Lushan Earthquake Observed
by a Borehole Strainmeter at Guzan
[8]
Liu Xuyan. INSTRUMENT SITE CALIBRATION CAN NOT BE REPLACED
BY DATA PROCESSING
[9]
Qiu Zehua ;Tang Lei ; Lu Falin ; and Zhang Baohong . TECHNIQUE OF STRAIN OBSERVATION IN SOIL WITH SELF-CHECKING FUNCTION
[10]
Wu Liheng;Li Tao;and Chen Zheng. RELIABILITY ANALYSIS OF DEEP BOREHOLE STRAINMETER DATA IN BEIJING BAISHAN
[11]
Qiu Zehua. DISCUSSION ON FEASIBILITY OF BOREHOLE STRAIN OBSERVATION IN SOIL
[12]
Tang Lei;Qiu Zehua;and Song Mo. SELF-TEST ACCURACY OF 4-COMPONENT BOREHOLE STRAIN OBSERVATION
[13]
Zhang Jing;and Liu Qi. PROCESSING AND ANALYSIS OF FOUR-COMPONENT BOREHOLE STRAIN OBSERVATIONS
[14]
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[15]
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