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Civil Engineering
30 MPа

30 MPа

Structural Analysis
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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30 MPа -20 MPа 50 Figure 3 For the Coulomb Failure Envelope above (Fig. 3), we have a test where 03 = -10 MPa (i. e. negative) and o1 is progressively increased. ? at failure (Draw the new circle on Figure 2 a) When will the rock fail (what is the ơ1 = to check) b) What are the resolved shear and normal stresses on the fault when the rock fails? c) What is the angle that any new fracture will make to 01. d) Will it shear only, shear and dilate, or dilate only? e) What type of structural features (modes) form under those different conditions?
Transcribed Image Text:30 MPа -20 MPа 50 Figure 3 For the Coulomb Failure Envelope above (Fig. 3), we have a test where 03 = -10 MPa (i. e. negative) and o1 is progressively increased. ? at failure (Draw the new circle on Figure 2 a) When will the rock fail (what is the ơ1 = to check) b) What are the resolved shear and normal stresses on the fault when the rock fails? c) What is the angle that any new fracture will make to 01. d) Will it shear only, shear and dilate, or dilate only? e) What type of structural features (modes) form under those different conditions?
50 MPa Oc ON tan ф 20 + + -20 MPa 50 MPа 100 MPа O = 90 –20 -50 MPа
Transcribed Image Text:50 MPa Oc ON tan ф 20 + + -20 MPa 50 MPа 100 MPа O = 90 –20 -50 MPа
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