If a compression test on this rock specimen showing a vertical stress of 46 MPa and a vertical strain of 522x10-6. The radial strain is 106x10-6. Calculate the Rock Mass Modulus (in GPa) considering the factor EM/ER = 0.1.

If a compression test on this rock specimen showing a vertical stress of 46 MPa and a vertical strain of 522x10-6. The radial strain is 106x10-6. Calculate the Rock Mass Modulus (in GPa) considering the factor EM/ER = 0.1.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter10: Stresses In A Soil Mass

Section: Chapter Questions

Problem 10.13P: Repeat Problem 10.12 for q = 700 kN/m2, B = 8 m, and z = 4 m. In this case, point A is located below...

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Concept explainers

Methods to Determine Vertical Stress

The load applied to the soil is transferred to the underground. The presence of water at soil pores and solid grains above the soil are the primary components that are responsible for the effective load transfer. Due to the load acting, the internal component of the soil or the underground formations undergoes deformations or a tectonic shift. The amount of deformation depends upon the amount of load acting on the soil surface, which indeed, depends on the weight of everything present above the soil. Due to this, the underground soil element develops internal stresses which try to resist the tectonic changes.

Question

If a compression test on
specimen showing a vertical stress of 46
this rock
MPa and a vertical strain of 522x10-6. The
radial strain is 106x10-6. Calculate the
Rock Mass Modulus (in GPa) considering
the factor EM/ER = 0.1.

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