In‐situ holographic elastic moduli measurements from boreholes
نویسندگان
چکیده
منابع مشابه
Holographic insitu stress measurements
A new instrument for measuring the in siru level of stress in boreholes has been developed. The instrument operates on the principle of locally relieving the stresses acting on a rock mass by drilling a small hole into the borehole surface and recording the resultant displacement field by holographic interferometry. Because the recording technique is optical, the entire displacement field due t...
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ژورنال
عنوان ژورنال: GEOPHYSICS
سال: 1989
ISSN: 0016-8033,1942-2156
DOI: 10.1190/1.1442673