TY - JOUR
T1 - Changes in in situ ultrasonic properties of rock on strain relaxation
AU - Engelder, T.
AU - Plumb, R.
N1 - Funding Information:
Acknowledgements--This work was supported b~ contracts from the Nuclear Regulatory Commission (NRC-04-81-180) and the Ne~ York State ERDA Ted Koczynski helped in the design and construction ol components used in m sttu velocity measurements We thank Hans Swolfs, Chris Scholz and Tract Johnson for rewev, s of early versions of th~s paper Lamont-Doherty Geological Observator3 Contribution No 3588
PY - 1984/4
Y1 - 1984/4
N2 - In situ and laboratory measurements of ultrasonic velocity have been compared to test for the effect of strain relaxation on rock properties. For granites, the larger changes in compressional-wave velocity (Vp) correlate with higher in situ stresses, the maximum Vp being parallel to the directory of maximum compressive stress. For sedimentary rocks, the relation between changes in Vp and in-situ stress is dependent on lithology. In sandstone, the direction associated with the maximum decrease in Vp accompanying strain relaxation is parallel to the maximum compressive stress. Limestone is virtually isotropic with little decrease in Vp on strain relaxation.
AB - In situ and laboratory measurements of ultrasonic velocity have been compared to test for the effect of strain relaxation on rock properties. For granites, the larger changes in compressional-wave velocity (Vp) correlate with higher in situ stresses, the maximum Vp being parallel to the directory of maximum compressive stress. For sedimentary rocks, the relation between changes in Vp and in-situ stress is dependent on lithology. In sandstone, the direction associated with the maximum decrease in Vp accompanying strain relaxation is parallel to the maximum compressive stress. Limestone is virtually isotropic with little decrease in Vp on strain relaxation.
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U2 - 10.1016/0148-9062(84)91175-6
DO - 10.1016/0148-9062(84)91175-6
M3 - Article
AN - SCOPUS:0021406584
SN - 0148-9062
VL - 21
SP - 75
EP - 82
JO - International Journal of Rock Mechanics and Mining Sciences and
JF - International Journal of Rock Mechanics and Mining Sciences and
IS - 2
ER -