Comparison of the results obtained from different techniques such as overcoring, hydrofracturing, breakouts and focal mechanism solutions

Autor: Fangquan Li
Rok vydání: 1992
Předmět:
Zdroj: Acta Seismologica Sinica. 5:709-717
ISSN: 1993-1344
1000-9116
DOI: 10.1007/bf02651018
Popis: In China, a lot of data derived from focal mechanism solutions, and especially, from overcoring and hydrofracturing stress measurements, as well as borehole breakouts carried out for various aims have contributed to understanding of the state of the crustal stress. We conducted everin situ stress measurements in a borehole with different methods, for the sake of comparison of various measuring techniques. Furthermore, we carried out measurements in different borehole with one or two kinds of techniques. All the observations taken out in these ways showed little variations. So we believe that the data obtained by the techniques can be used to study the tectonic stress field of certain region and thein situ state of the crustal stress.
Databáze: OpenAIRE
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