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Estimation of in-situ hydraulic diffusivity of rock masses

✍ Scribed by Victor C. Li

Publisher
Springer
Year
1985
Tongue
English
Weight
731 KB
Volume
122
Category
Article
ISSN
0033-4533

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## Ε½ . Three methods of in situ deformation modulus Em measurements of rock masses have been described, analysed and Ε½ . compared. The plate jacking PJT test, where the deformations are measured by extensometers in drill holes, gives generally the best results. A factor of 2.5 has been found betwee