Abstract：The method of coupling coefficients inversion for 4component borehole strainmeters was studied, which adopts two computation models including azimuth correction and phase lag effect. Using the data from the network of 4component borehole strain observation during the Tenth FiveYear Project of China, the calculation results show that coupling coefficients inverted with the two models are close to each other in most sites, and the results of phase lag, azimuth correction and simulation residual are relatively stable. However, some sites’ results of phase lag are different obviously, which results in great difference between coupling coefficients inverted with the two models. On the basis of faults distribution of sites’ surroundings, the physical mechanisms that possibly lead to the difference are discussed.
Zhang Jing,and Liu Qi. COUPLING COEFFICIENTS INVERSION OF DIFFERENCE STRAIN IN BOREHOLE OBSERVATION AND DISCUSSION OF RELATED MECHANISM[J]. jgg, 2012, 32(2): 155-159.
