A site is underlain by a granite having the following properties and characteristics:• Average uniaxial compressive strength of intact rock = 260 MPa• Average RQD = 80,• Average discontinuity spacing = 1.1 m• Discontinuities are tight and rough, with slightly weathered walls and lengths between 3 and 10 m• Dry• Average unit weight = 25.9 kN/m3Estimate for this granite the total RMR rating, GSI, Hoek- Brown failure criterion assuming the rock is undisturbed, intact rock deformation modulus, rock mass deformation modulus, and the rock mass Poisson’s ratio.
A site is underlain by a granite having the following properties and characteristics:• Average uniaxial compressive strength of intact rock = 260 MPa• Average RQD = 80,• Average discontinuity spacing = 1.1 m• Discontinuities are tight and rough, with slightly weathered walls and lengths between 3 and 10 m• Dry• Average unit weight = 25.9 kN/m3Estimate for this granite the total RMR rating, GSI, Hoek- Brown failure criterion assuming the rock is undisturbed, intact rock deformation modulus, rock mass deformation modulus, and the rock mass Poisson’s ratio.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A site is underlain by a granite having the following properties and characteristics:
• Average uniaxial compressive strength of intact rock = 260 MPa
• Average RQD = 80,
• Average discontinuity spacing = 1.1 m
• Discontinuities are tight and rough, with slightly weathered walls and lengths between 3 and 10 m
• Dry
• Average unit weight = 25.9 kN/m3
Estimate for this granite the total RMR rating, GSI, Hoek- Brown failure criterion assuming the rock is undisturbed, intact rock deformation modulus, rock mass deformation modulus, and the rock mass Poisson’s ratio.
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