30 MPа-20MPа50Figure 3For 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 2a) 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? 50MPaOcON tan ф20++-20MPa50MPа100MPаO = 90 –20-50MPа

From figure 2, When shear stress is at 48MPa and Major principal stress is at 104Mpa, the rock will…

Answered: 30 MPа

Engineering

Civil Engineering

30 MPа

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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Concept explainers

Measuring site work, Excavation and Piling

Bid drawings typically include very little material about the precise requirements of site work operations, measuring site work and excavation work differs from measuring most other works on a construction project. The actual site work conditions are not provided and also the dimensions of the excavations are not known during the pre-construction phase. The precise measurement of the excavation and backfill of the earth material and topsoil is important for a contractor to decide upon the total cost required for the process. All the works should be carried out under OSHA (Occupational Safety and Health Administration) standards to ensure the safety of the workers.

Question

100%

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

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