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Table 1 Summary of the elastic moduli reported for URG granites from EPS-1 and GPK-1.

From: Estimating in situ rock mass strength and elastic modulus of granite from the Soultz-sous-Forêts geothermal reservoir (France)

Type

Average intact elastic modulus

Method

References

Static

49 ± 4

Triaxial compression (40 MPa confinement)

Schäfer (1990)

Static

73 ± 6

Three-point bending tests (62 mm cores)

Rummel et al. (1989)

Static

70 ± 6

Three-point bending tests (30 mm cores)

Rummel et al. (1989)

Static

38 ± 8.5

Three-point bending tests

Rummel (1992)

Static

51 ± 6.6

Uniaxial compression tests

Valley and Evans (2006)

Dynamic

62 ± 5 (dry)

Elastic wave velocities

Schäfer (1990)

88 ± 4 (wet)

Dynamic

64 ± 8

Elastic wave velocities

Rummel and König (1991)

Dynamic

71 ± 5

Elastic wave velocities

Rummel et al. (1992)

Dynamic

69

Elastic wave velocities

Rummel (1992)

Dynamic

59 ± 6 (axial)

Elastic wave velocities

Rummel and Schreiber (1993)

65 ± 10 (radial)