Exercises at the end of the third chapter of Goodman's book Introduction to Rock Mechanics(Please answer question two, thank you) =>and,=>45+S÷from89 (i48.7 = 9.5 x 4.6 +2x S x √4.6= tan √4.640]=taking Aug. value of S and o.1.03785 +1.1656S;= 1·1656240.4754 + 402= 1.101725 MPaAne46.2377 MPaAns Problems1. In a series of triaxial compression tests on a sandstone, the following repre-sent the stresses at peak load conditions:Test1234σ3 (MPa)1.05.09.515.0σ₁ (MPa)9.228.048.774.0Determine values of S; and that best fit the data.2. The initial state of stress at a point in the ground, in sandstone of Problem 1,isσ3 = 1300 psiσ₁ = 5000 psiThe pore water pressure (p) will be raised by the construction of areservoir. What value of p will cause fracture of the sandstone in situ(assume fracture occurs at peak stress).3. For the rock of Problems 1 and 2, what is the value of the principal stressratio (03/0₁) above which "failure" cannot occur?

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2. The initial state of stress at a point in the ground, in sandstone of Problem 1, is σ3 = 1300 psi σ₁ = 5000 psi The pore water pressure (p.) will be raised by the construction of a reservoir. What value of p will cause fracture of the sandstone in situ (assume fracture occurs at peak stress).

2. The initial state of stress at a point in the ground, in sandstone of Problem 1, is σ3 = 1300 psi σ₁ = 5000 psi The pore water pressure (p.) will be raised by the construction of a reservoir. What value of p will cause fracture of the sandstone in situ (assume fracture occurs at peak stress).

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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